CN106921533B - Method, device and system for measuring network performance - Google Patents

Abstract

The embodiments of the present invention disclose a method, device and system for measuring network performance. The system includes: a control node for receiving a measurement request, sending a first measurement instruction and a second measurement instruction, and receiving and forwarding a first result; a source detection node for receiving the first measurement instruction, and sending a message to the destination based on the first measurement instruction The detection node sends a detection request message, receives a detection response message sent by the target detection node, generates a first result according to the detection request message and the detection response message, and sends it to the control node; the target detection node is used for receiving the second measurement instruction , receive the detection request message sent by the source detection node, and send the detection response message to the source detection node based on the second measurement instruction; wherein, the source detection node and the source virtual client in the source physical server communicate with the outside world through the source virtual switch For communication, both the destination detection node and the destination virtual client in the destination physical server communicate with the outside world through the source virtual switch.

Description

A method, device and system for measuring network performance

technical field

The present invention relates to the field of communication technologies, and in particular, to a method, device and system for measuring network performance.

Background technique

For network services, both the service provider and the service consumer usually need to know the network performance. For service providers, network performance can be used to measure the service quality of network services. For service consumers, network performance can be used to understand network conditions. Generally, a network performance measurer can know the network performance between two network terminals through a ping operation. Assuming that the surveyor needs to know the network performance between network terminal A and network terminal B, the surveyor can manually write a ping command for the network address of network terminal B on network terminal A and manually trigger the programmed ping command, network terminal A The measurement result of the network performance between the network terminal A and the network terminal B can be obtained, so that the measurement personnel can know the network performance between the network terminal A and the network terminal B through the measurement result obtained by the network terminal A. It can be seen that in order to measure the network performance between network terminals, the measurement personnel need to manually write and trigger the ping command on the measured network terminal. It can be seen that the measurement operation of the network performance is cumbersome and complicated for the measurement personnel.

SUMMARY OF THE INVENTION

The technical problem to be solved by the embodiments of the present invention is to provide a method, device and system for measuring network performance, so as to simplify the manual operation of the measurement personnel in the network performance measurement process, so that the measurement personnel can measure the network performance more easily.

In a first aspect, an embodiment of the present invention provides a system for measuring network performance. The system includes:

The control node is configured to receive the measurement request, send a first measurement instruction to the source detection node, send a second measurement instruction to the destination detection node, receive the first result sent by the source detection node, and forward the first result, wherein, The measurement request is used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client;

The source detection node is configured to receive the first measurement instruction sent by the control node, send a detection request message to the destination detection node based on the first measurement instruction, and receive the detection request sent by the destination detection node a response message, generating the first result according to the probe request message and the probe response message, and sending the first result to the control node, where the first result is used to identify the source the performance of the link from the probe node to the destination probe node;

The destination detection node is configured to receive the second measurement instruction sent by the control node, receive the detection request message sent by the source detection node, and send a message to the source based on the second measurement instruction The detection node sends the detection response message corresponding to the detection request message;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request, the first measurement instruction, and the second measurement instruction all carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier for identifying the source. The type of metric to which the results of the performance of the virtual guest-to-destination virtual guest link belong.

Optionally, the sending a probe request message to the destination probe node based on the first measurement instruction includes:

determining the sending mode of the probe request message according to the type in the first measurement instruction;

According to the sending manner, the probe request message is sent to the destination probe node.

optional,

The source probe node is a process in the source virtual client, and the destination probe node is a process in the destination virtual client.

optional,

The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the source physical server;

The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual machine are two virtual machines located on the destination physical server.

optional,

The source detection node is further configured to determine whether the first result belongs to a first range, and to generate and send a first alarm to the control node when the first result does not belong to the first range;

The control node is further configured to receive the first alarm sent by the source detection node, and forward the first alarm.

optional,

The destination detection node is further configured to generate a second result according to the detection request message, and send the second result to the control node, where the second result is used to identify the source detection node to the destination detection node. Describe the performance of the link of the destination detection node;

The control node is further configured to receive the second result sent by the destination detection node, and forward the second result.

optional,

The destination detection node is further configured to determine whether the second result belongs to the second range, and to generate and send a second alarm to the control node when the second result does not belong to the second range;

The control node is further configured to receive the second alarm sent by the destination detection node, and forward the second alarm.

Optionally, the system further includes:

A source proxy node, configured to receive the first measurement instruction sent by the control node and forward the first measurement instruction to the source detection node, and receive the first result sent by the source detection node and forwarding the first result to the control node;

A destination proxy node, configured to receive the second measurement instruction sent by the control node and forward the second measurement instruction to the destination detection node.

optional,

The destination proxy node is further configured to receive the second result sent by the destination detection node and forward the second result to the control node.

optional,

the source proxy node, further configured to receive the first alarm sent by the source detection node and forward the first alarm to the control node;

The destination proxy node is further configured to receive the second alarm sent by the destination detection node and forward the second alarm to the control node.

optional,

The source agent node is further configured to sign the first measurement instruction before forwarding the first measurement instruction;

The source detection node is further configured to verify the signed first measurement instruction after receiving the first measurement instruction, and if the verification is successful, send the destination detection node the Probe request message;

The destination proxy node is further configured to sign the second measurement instruction before forwarding the second measurement instruction;

The destination detection node is further configured to verify the signed second measurement instruction after receiving the second measurement instruction, and in the case that the verification is successful, send the request to the destination based on the second measurement instruction. The source detection node sends the detection response message corresponding to the detection request message.

Optionally, the source proxy node and the destination proxy node are the same proxy node;

The control node is further configured to acquire a first route from the source proxy node to the source probe node and a second route from the source probe node to the source proxy node before sending the first measurement instruction , send the first route to the source proxy node, send the second route to the source probe node, and, before sending the second measurement instruction, obtain the destination proxy node to the destination probe node a third route between nodes, sending the third route to the destination proxy node;

The first route is used by the source proxy node to send the first measurement instruction to the source detection node, and the second route is used by the source detection node to send the first measurement instruction to the source proxy node. As a result, the third route is used for the destination proxy node to send the second measurement instruction to the destination detection node.

Optionally, the source proxy node is a process in the source physical server, and the destination proxy node is a process in the destination physical server.

optional,

The control node is further configured to send first control information to the source proxy node and send second control information to the destination proxy node before sending the first measurement instruction and the second measurement instruction, so as to The source detection node specifies a first port on the source virtual switch and specifies a second port on the destination virtual switch for the destination detection node, and establishes a configuration including the first port and the second port the virtual local area network; the source detection node can communicate with the destination detection node through the first port, the destination detection node can communicate with the source detection node through the second port, and the virtual local area network is used for transmitting the probe request message and the probe response message;

The source proxy node is further configured to receive the first control information, and create the first virtual machine and the source detection node in the source physical server based on the first control information;

The destination proxy node is further configured to receive the second control information, and create the second virtual machine and the destination detection node in the destination physical server based on the second control information.

In a second aspect, an embodiment of the present invention provides a method for measuring network performance. The method includes:

the control node receives a measurement request, the measurement request is used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client;

The control node sends a first measurement instruction to the source detection node and sends a second measurement instruction to the destination detection node, where the first measurement instruction is used to instruct the source detection node to send a detection request message to the destination detection node, receive a corresponding A probe response message of a probe request message and generate a first result according to the probe request message and the probe response message, where the first result is used to identify the link from the source probe node to the destination probe node performance of the road, and the second measurement instruction is used to instruct the destination detection node to send the detection response message corresponding to the detection request message to the source detection node;

receiving, by the control node, the first result sent by the source detection node, and forwarding the first result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request, the first measurement instruction, and the second measurement instruction all carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier for identifying the source. The type of metric to which the result of the virtual guest-to-destination virtual guest link belongs.

Optionally, the method further includes:

receiving, by the control node, the second result sent by the destination detection node, and forwarding the second result;

The second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the performance of the link from the source detection node to the destination detection node.

Optionally, the method further includes:

receiving, by the control node, a first alarm sent by the source detection node, and forwarding the first alarm;

receiving, by the control node, the second alarm sent by the destination detection node, and forwarding the second alarm;

The first alarm is generated and sent by the source detection node when it determines that the first result does not belong to the first range, and the second alarm is generated by the destination detection node when it determines that the second result does not belong to the first range. Generated and sent when belonging to the second range.

Optionally, the method further includes:

the control node determines whether the first result belongs to a third range;

When the first result does not belong to the third range, the control node generates a third alarm and forwards it;

the control node determines whether the second result belongs to a fourth range;

When the second result does not belong to the fourth range, the control node generates and forwards a fourth alarm.

optional,

Sending, by the control node, a first measurement instruction to the source detection node and a second measurement instruction to the destination detection node includes: the control node sending the first measurement instruction to a source proxy node to instruct the The source proxy node forwards the first measurement instruction to the source detection node; the control node sends the second measurement instruction to the destination proxy node to instruct the destination proxy node to forward the first measurement instruction to the destination detection node 2. Measurement instructions;

The control node receives the first result sent by the source detection node, specifically: the control node receives the first result forwarded by the source proxy node, where the first result is sent by the source detection node to the source agent node.

optional,

The control node receives the second result sent by the destination detection node, specifically: the control node receives the second result forwarded by the destination proxy node, where the second result is sent by the destination detection node to the destination proxy node.

optional,

The control node receives the first alarm sent by the source detection node, specifically: the control node receives the first alarm forwarded by the source proxy node, where the first alarm is sent by the source detection node to the source agent node;

The control node receives the second alarm sent by the destination detection node, specifically: the control node receives the second alarm forwarded by the destination proxy node, where the second alarm is sent by the destination detection node to the destination proxy node.

Optionally, the source proxy node and the destination proxy node are the same proxy node;

Before the control node sends the first measurement instruction and the second measurement instruction, the method further includes:

obtaining, by the control node, a first route from the source proxy node to the source detection node and a second route from the source detection node to the source proxy node, and sending the first route to the source proxy node, Sending the second route to the source detection node, where the first route is used by the source proxy node to forward the first measurement instruction to the source detection node, and the second route is used for the source detection node the node sends the first result to the source proxy node;

The control node acquires a third route from the destination proxy node to the destination detection node, and sends the third route to the destination proxy node, where the third route is used by the destination proxy node to send the destination proxy node to the destination proxy node. The probe node forwards the second measurement instruction.

Optionally, the source proxy node is a process in the source physical server, and the destination proxy node is a process in the destination physical server;

Before the control node sends the first measurement instruction and the second measurement instruction, the method further includes:

The control node sends first control information to the source proxy node and sends second control information to the destination proxy node, where the first control information is used to instruct the source proxy node to create in the source physical server a first virtual machine and the source detection node, the second control information is used to instruct the destination proxy node to create a second virtual machine and the destination detection node in the destination physical server, wherein the source detection node A node is a process in the first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the source physical server, and the destination detection node is the second virtual machine A process in the machine, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server;

The control node designates a first port on the source virtual switch for the source detection node and a second port on the destination virtual switch for the destination detection node, and the source detection node can pass the first port through the first port. A port communicates with the destination detection node, and the destination detection node can communicate with the source proxy node through the second port;

The control node establishes a virtual local area network including the first port and the second port; the virtual local area network is used to transmit the probe request message and the probe response message.

In a third aspect, an embodiment of the present invention provides an apparatus for measuring network performance. The apparatus is deployed with a control node. The device includes:

a first receiving unit, configured to receive a measurement request, where the measurement request is used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client;

a first sending unit, configured to send a first measurement instruction to the source detection node and a second measurement instruction to the destination detection node, where the first measurement instruction is used to instruct the source detection node to send a detection request message to the destination detection node, receive a Corresponding to the probe response message of the probe request message and generating a first result according to the probe request message and the probe response message, the first result is used to identify the source probe node to the destination probe the performance of the link of the node, and the second measurement instruction is used to instruct the destination detection node to send the detection response message corresponding to the detection request message to the source detection node;

a second receiving unit, configured to receive the first result sent by the source detection node;

a first forwarding unit, configured to forward the first result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request, the first measurement instruction, and the second measurement instruction all carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier for identifying the source. The type of metric to which the result of the virtual guest-to-destination virtual guest link belongs.

Optionally, the device further includes:

a third receiving unit, configured to receive the second result sent by the destination detection node, where the second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the performance of the link from the source probe node to the destination probe node;

A second forwarding unit, configured to forward the second result.

Optionally, the device further includes:

a fourth receiving unit, configured to receive a first alarm sent by the source detection node, where the first alarm is generated and sent by the source detection node when it is determined that the first result does not belong to the first range;

a third forwarding unit, configured to forward the first alarm;

a fifth receiving unit, configured to receive a second alarm sent by the destination detection node, where the second alarm is generated and sent by the destination detection node when it is determined that the second result does not belong to the second range;

a fourth forwarding unit, configured to forward the second alarm.

Optionally, the device further includes:

a first determining unit, configured to determine whether the first result belongs to a third range;

a fifth forwarding unit, configured to generate and forward third network performance alarm information when the first result does not belong to the third range;

a second determination unit, configured to determine whether the second result belongs to the fourth range;

A sixth feedback unit, configured to generate and forward fourth network performance alarm information when the second result does not belong to the fourth range.

optional,

The first sending unit is specifically configured to send the first measurement instruction to the source proxy node, so as to instruct the source proxy node to forward the first measurement instruction to the source detection node, and send the first measurement instruction to the destination proxy node the second measurement instruction to instruct the destination proxy node to forward the second measurement instruction to the destination detection node;

The second receiving unit is specifically configured to receive the first result forwarded by the source proxy node, where the first result is sent by the source detection node to the source proxy node.

optional,

The third receiving unit is specifically configured to receive the second result forwarded by the destination proxy node, where the second result is sent by the destination detection node to the destination proxy node.

optional,

The fourth receiving unit is specifically configured to receive the first alarm forwarded by the source proxy node, where the first alarm is sent by the source detection node to the source proxy node;

The fifth receiving unit is specifically configured to receive the second alarm forwarded by the destination proxy node, where the second alarm is sent by the destination detection node to the destination proxy node.

Optionally, the source proxy node and the destination proxy node are the same proxy node;

The device also includes:

a first obtaining unit, configured to obtain a first route from the source proxy node to the source detection node and send it to the source proxy node, where the first route is used by the source proxy node to send to the source detection node forward the first measurement instruction

a second obtaining unit, configured to obtain a second route from the source detection node to the source proxy node and send it to the source detection node, where the second route is used from the source detection node to the source proxy node sending the first result;

a third acquiring unit, configured to acquire a second route from the destination proxy node to the destination detection node and send it to the destination proxy node, where the second route is used by the destination proxy node to send the destination detection node Forward the second measurement instruction.

Optionally, the source proxy node is a process in the source physical server, and the destination proxy node is a process in the destination physical server;

The device also includes:

a second sending unit, configured to send first control information to the source proxy node and send second control information to the destination proxy node, where the first control information is used to instruct the source proxy node in the source physical A first virtual machine and the source detection node are created in the server, and the second control information is used to instruct the destination proxy node to create a second virtual machine and the destination detection node in the destination physical server, wherein all the The source detection node is a process in the first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the source physical server, and the destination detection node is the A process in a second virtual machine, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server;

a specifying unit, configured to specify a first port on the source virtual switch for the source detection node and a second port on the destination virtual switch for the destination detection node, the source detection node can pass the The first port communicates with the destination detection node, and the destination detection node can communicate with the source proxy node through the second port;

The establishment unit is configured to establish a virtual local area network including the first port and the second port; the virtual local area network is configured to transmit the probe request message and the probe response message.

In a fourth aspect, an embodiment of the present invention provides a method for measuring network performance. The method includes:

The source detection node receives the measurement instruction sent by the control node, the measurement instruction is sent when the control node receives the measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client to the destination virtual client. the results of the performance of the client's link;

The source detection node sends a detection request message to the destination detection node based on the measurement instruction;

The source detection node receives the detection response message sent by the destination detection node, and generates a result according to the detection request message and the detection response message, where the result is used to identify the source detection node to the destination detection node The performance of the link of the node, the probe response message is sent by the destination probe node corresponding to the probe request message;

The source detection node sends the result to the control node, so that the control node forwards the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, both the measurement request and the measurement instruction carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier used to identify the source virtual client to the destination virtual client. The type of indicator to which the link performance result belongs.

Optionally, the source detection node sends a detection request message to the destination detection node based on the measurement instruction, which specifically includes:

The source detection node determines a transmission mode of the detection request message according to the type in the measurement instruction;

The source detection node sends the detection request message to the destination detection node according to the sending manner.

optional,

The source probe node is a process in the source virtual client, and the destination probe node is a process in the destination virtual client.

optional,

The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the physical server;

The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server.

Optionally, the method further includes:

the source probe node determines whether the result is in scope;

When the result does not belong to the range, the source detection node generates an alarm;

The source detection node sends the alarm to the control node so that the control node forwards the alarm.

optional,

The source detection node receives the measurement instruction sent by the control node, specifically: the source detection node receives the measurement instruction forwarded by the source proxy node, where the measurement instruction is sent by the control node to the source proxy node ;

The source detection node sending the result to the control node is specifically: the source detection node sends the result to the source proxy node, so that the source proxy node sends the result to the control node.

optional,

The source detection node sending the alarm to the control node is specifically: the source detection node sends the alarm to the source proxy node, so that the source proxy node forwards the alarm to the control node.

Optionally, the method further includes:

The source detection node verifies the measurement instruction, and sends the detection request message to the destination detection node when the verification is passed;

The measurement instruction is forwarded to the source detection node after being signed by the source proxy node.

In a fifth aspect, the present invention provides an apparatus for measuring network performance. The apparatus deploys active probe nodes. The device includes:

a first receiving unit, configured to receive a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client results of the performance of the link from the host to the destination virtual client;

a first sending unit, configured to send a probe request message to the destination probe node based on the measurement instruction;

a second receiving unit, configured to receive a probe response message sent by the destination probe node;

A first generating unit, configured to generate a result according to the probe request message and the probe response message, where the result is used to identify the performance of the link from the source probe node to the destination probe node, and the probe response reports The message is sent by the destination detection node corresponding to the detection request message;

a second sending unit, configured to send the result to the control node, so that the control node forwards the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, both the measurement request and the measurement instruction carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier used to identify the source virtual client to the destination virtual client. The type of indicator to which the link performance result belongs.

Optionally, the first sending unit is specifically used for:

determining the sending mode of the probe request message according to the type in the measurement instruction;

According to the sending manner, the probe request message is sent to the destination probe node.

optional,

The source probe node is a process in the source virtual client, and the destination probe node is a process in the destination virtual client.

optional,

The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the physical server;

The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server.

Optionally, the device further includes:

a determination unit for determining whether the result belongs to a range;

a second generating unit, configured to generate an alarm when the result does not belong to the range;

A third sending unit, configured to send the alarm to the control node, so that the control node forwards the alarm.

optional,

The second receiving unit is specifically configured to receive the measurement instruction forwarded by the source proxy node, where the measurement instruction is sent by the control node to the source proxy node;

The second sending unit is specifically configured to send the result to the source proxy node, so that the source proxy node forwards the result to the control node.

optional,

The third sending unit is specifically configured to send the alarm to the source proxy node, so that the source proxy node forwards the alarm to the control node.

Optionally, the device further includes:

a verification unit, configured to verify the signature in the measurement instruction, and the measurement instruction is forwarded to the source detection node after being signed by the source agent node;

a triggering unit, configured to trigger the first sending unit when the verification is passed.

In a sixth aspect, an embodiment of the present invention provides a method for measuring network performance. The method includes:

The destination detection node receives the measurement instruction sent by the control node, the measurement instruction is sent when the control node receives the measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client to the destination virtual client. the results of the performance of the client's link;

The destination detection node receives the detection request message sent by the source detection node;

The destination detection node sends a detection response packet corresponding to the detection request packet to the source detection node based on the measurement instruction, and the detection request packet and the detection response packet are used by the source detection node to generate sending a first result to the control node, where the first result is used to identify the performance of the link between the source detection node and the destination detection node, and the first result is used by the control node for forwarding;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request and the measurement instruction both carry the identifier of the source virtual client and the identifier of the destination virtual client, and the measurement request is used to instruct the control node to feed back for the identifier. The type of metric that the result of the performance of the link from the source virtual client to the destination virtual client belongs to.

optional,

The source probe node is a process in the source virtual client, and the destination probe node is a process in the destination virtual client.

optional,

The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the source physical server;

The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual machine are two virtual machines located on the destination physical server.

Optionally, the method further includes:

generating, by the destination detection node, a second result according to the detection request message, where the second result is used to identify the performance of the link from the source detection node to the destination detection node;

The destination detection node sends the second result to the control node, so that the control node forwards the second result.

Optionally, the method further includes:

the destination detection node determines whether the second result belongs to a range;

When the second result does not belong to the range, the destination detection node generates an alarm;

The destination detection node sends the alarm to the control node, so that the control node forwards the alarm.

optional,

The destination detection node receives the measurement instruction sent by the control node, specifically: the destination detection node receives the measurement instruction forwarded by the destination proxy node, where the measurement instruction is sent by the control node to the destination proxy node.

optional,

The destination detection node sends the second result to the control node, specifically: the destination detection node sends the result to the destination proxy node, so that the destination proxy node forwards the result to the control node Second result.

optional,

The destination detection node sends the alarm to the control node, specifically: the destination detection node sends the alarm to the destination proxy node, so that the destination proxy node forwards the alarm to the control node.

Optionally, the method further includes:

The destination detection node verifies the measurement instruction, and receives the detection request message sent by the source detection node when the verification is passed;

The measurement instruction is forwarded to the destination detection node after being signed by the destination proxy node.

In a seventh aspect, an embodiment of the present invention provides an apparatus for measuring network performance. The apparatus deploys purposeful probe nodes. The device includes:

a first receiving unit, configured to receive a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client results of the performance of the link from the host to the destination virtual client;

a second receiving unit, configured to receive the probe request message sent by the source probe node;

A returning unit, configured to send a probe response packet corresponding to the probe request packet to the source probe node based on the measurement instruction, where the probe request packet and the probe response packet are used by the source probe node generating a first result and sending it to the control node, where the first result is used to identify the performance of the link between the source detection node and the destination detection node, and the first result is used by the control node for forwarding;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request and the measurement instruction both carry the identifier of the source virtual client and the identifier of the destination virtual client, and the measurement request is used to instruct the control node to feed back for the identifier. The type of metric that the result of the performance of the link from the source virtual client to the destination virtual client belongs to.

optional,

The source probe node is a process in the source virtual client, and the destination probe node is a process in the destination virtual client.

optional,

The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the source physical server;

The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual machine are two virtual machines located on the destination physical server.

Optionally, the device further includes:

a first generating unit, configured to generate a second result according to the probe request message, where the second result is used to identify the performance of the link from the source probe node to the destination probe node;

A first sending unit, configured to send the second result to the control node, so that the control node forwards the second result.

Optionally, the device further includes:

a determining unit, configured to determine whether the second result belongs to a range;

a second generating unit, configured to generate an alarm when the second result does not belong to the range;

The second sending unit is configured to send the alarm to the control node, so that the control node forwards the alarm.

optional,

The first receiving unit is specifically configured to receive the measurement instruction forwarded by a destination proxy node, where the measurement instruction is sent by the control node to the destination proxy node.

optional,

The first sending unit is specifically configured to send the second result to the destination proxy node, so that the destination proxy node forwards the second result to the control node.

optional,

The second sending unit is specifically configured to send the alarm to the destination proxy node, so that the destination proxy node forwards the alarm to the control node.

Optionally, the device further includes:

a verification unit, configured to verify the measurement instruction, the measurement instruction is forwarded to the destination detection node after being signed by the destination proxy node;

a triggering unit, configured to trigger the second receiving unit when the verification is passed.

In an eighth aspect, an embodiment of the present invention provides a method for measuring network performance. The method includes:

The source proxy node receives the measurement instruction sent by the control node, the measurement instruction is sent when the control node receives the measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client to the destination virtual client. the results of the performance of the client's link;

The source proxy node forwards the measurement instruction to the source probe node, so as to instruct the source probe node to send a probe request message to the destination probe node, receive a probe response message sent by the destination probe node, and execute the probe request message according to the probe request. packet and the detection response packet generation result, the result is used to identify the performance of the link between the source detection node and the destination detection node, and the detection response packet is the destination detection node corresponding to the Probe request message sent;

receiving, by the source proxy node, the result sent by the source detection node;

the source proxy node forwards the result to the control node so that the control node forwards the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the method further includes:

receiving, by the source proxy node, an alarm sent by the source detection node, where the alarm is generated by the source detection node when it is determined that the result does not belong to the scope;

The source proxy node forwards the alarm to the control node so that the control node forwards the alarm.

Optionally, before the source proxy node forwards the measurement instruction to the source detection node, the method further includes:

The source proxy node signs the measurement instruction; the signed measurement instruction is used for verification by the source detection node and sends the detection request message to the destination detection node when the verification is passed.

Optionally, the source agent node is a process in the source physical server;

Before the source proxy node receives the measurement instruction, the method further includes:

receiving, by the source agent node, the control information sent by the control node;

The source proxy node creates a virtual machine and the source detection node in the source physical server based on the control information, wherein the source detection node is a process in the first virtual machine, and the virtual machine and the source virtual client are two virtual machines located on the source physical server.

In a ninth aspect, an embodiment of the present invention provides an apparatus for measuring network performance. The apparatus is configured with an active proxy node. The device includes:

a first receiving unit, configured to receive a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client results of the performance of the link from the host to the destination virtual client;

A first forwarding unit, configured to forward the measurement instruction to the source detection node, so as to instruct the source detection node to send a detection request message to the destination detection node, receive a detection response message sent by the destination detection node, and according to the The probe request packet and the probe response packet are generated, the results are used to identify the performance of the link between the source probe node and the destination probe node, and the probe response packet is the destination probe Sent by the node corresponding to the probe request message;

a second receiving unit, receiving the result sent by the source detection node;

a second forwarding unit, configured to forward the result to the control node, so that the control node forwards the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the device further includes:

a third receiving unit, configured to receive an alarm sent by the source detection node, where the alarm is generated by the source detection node when it is determined that the result does not belong to the range;

A third forwarding unit, configured to forward the alarm to the control node, so that the control node forwards the alarm.

Optionally, the device further includes:

The signature unit is used to sign the measurement instruction before sending the measurement instruction to the source detection node; the signed measurement instruction is used for verification by the source detection node and is sent to the source detection node when the verification is passed. The destination detection node sends the detection request message.

Optionally, the source agent node is a process in the source physical server;

The device also includes:

a fourth receiving unit, configured to receive the control information sent by the control node;

A creation unit, configured to create a virtual machine and the source detection node in the source physical server based on the control information before receiving the measurement instruction, wherein the source detection node is the first virtual machine A process in the virtual machine and the source virtual client are two virtual machines located on the source physical server.

In a tenth aspect, an embodiment of the present invention provides a method for measuring network performance. The method includes:

The destination proxy node receives the measurement instruction sent by the control node, the measurement instruction is sent when the control node receives the measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client to the destination virtual client. the results of the performance of the client's link;

The destination proxy node forwards the measurement instruction to the destination probe node, so as to instruct the destination probe node to receive the probe request message sent by the source probe node and send a probe response corresponding to the probe request message to the source probe node message, the probe request message and the probe response message are used by the source probe node to generate a first result and send it to the control node, where the first result is used to identify the source probe node to the the performance of the link of the destination detection node, and the first result is used for forwarding by the control node;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the method further includes:

The destination proxy node receives a second result sent by the destination detection node, where the second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the source detection node the performance of the link from the node to the destination probe node;

The destination proxy node forwards the second result to the control node so that the control node forwards the second result.

Optionally, the method further includes:

receiving, by the destination proxy node, an alarm sent by the destination detection node, where the alarm is generated by the destination detection node when it is determined that the second result does not belong to the scope;

The destination proxy node forwards the alarm to the control node, so that the control node forwards the alarm.

Optionally, before the destination proxy node forwards the measurement instruction to the destination detection node, the method further includes:

The destination proxy node signs the measurement instruction; the signed measurement instruction is used for verification by the source detection node and sends the detection request message to the destination detection node when the verification is passed.

Optionally, the destination proxy node is a process in the destination physical server;

Before the destination proxy node receives the measurement instruction, the method further includes:

receiving, by the destination proxy node, the control information sent by the control node;

The destination proxy node creates a virtual machine and the destination detection node in the destination physical server based on the control information, wherein the source detection node is a process in the first virtual machine, and the virtual machine and the source virtual client are two virtual machines located on the source physical server.

In an eleventh aspect, an embodiment of the present invention provides an apparatus for measuring network performance. The apparatus is deployed with a destination proxy node. The device includes:

a first receiving unit, configured to receive a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client results of the performance of the link from the host to the destination virtual client;

The first forwarding unit is configured to forward the measurement instruction to the destination detection node, so as to instruct the destination detection node to receive the detection request message sent by the source detection node and to send the source detection node corresponding to the detection request message. A probe response message, where the probe request message and the probe response message are used by the source probe node to generate a first result and send it to the control node, where the first result is used to identify the source probe the performance of the link from the node to the destination detection node, and the first result is used for forwarding by the control node;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the device further includes:

A second receiving unit, configured to receive a second result sent by the destination detection node, where the second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the the performance of the link from the source probe node to the destination probe node;

A second forwarding unit, configured to forward the second result to the control node, so that the control node forwards the second result.

Optionally, the device further includes:

a third receiving unit, configured to receive an alarm sent by the destination detection node, where the alarm is generated by the destination detection node when it is determined that the second result does not belong to the range;

A third forwarding unit, configured to forward the alarm to the control node, so that the control node forwards the alarm.

Optionally, the device further includes:

a signature unit, configured to sign the measurement instruction before sending the measurement instruction to the destination detection node; the signed measurement instruction is used for verification by the source detection node and is sent to the destination if the verification is passed The detection node sends the detection request message.

Optionally, the destination proxy node is a process in the destination physical server;

The device also includes:

a fourth receiving unit, configured to receive the control information sent by the control node;

A creation unit, configured to create a virtual machine and the destination detection node in the destination physical server based on the control information, wherein the source detection node is a process in the first virtual machine, and the virtual machine and the source virtual client are two virtual machines located on the source physical server.

Compared with the prior art, the embodiments of the present invention have at least the following advantages:

In the technical solution of the embodiment of the present invention, when the control node receives a measurement request for instructing the control node to feed back a result used to identify the performance of the link between the source virtual client and the destination virtual client, the control node sends a request to the source detection node and the destination virtual client. The destination detection node sends a measurement command. Under the instruction of the measurement command, the source detection node sends a detection request message to the destination detection node, and the destination detection node sends a detection response message corresponding to the detection request message to the source detection node. The message generates the result of the network measurement and sends the result to the control node. The result is used to identify the performance of the link from the source probe node to the destination probe node. The control node can forward the result as a result corresponding to the measurement request, so as to complete the measurement of the network performance between the source virtual client and the destination virtual client. The source virtual client, the source detection node, and the source virtual switch are all located on the source physical server, and the destination virtual client, the destination detection node, and the destination virtual switch are all located on the destination physical server. The communication between them needs to pass through the source virtual switch and the destination virtual switch, and the communication between the source detection node and the destination detection node needs to pass through the source virtual switch and the destination virtual switch. It can be seen that the measurement personnel can obtain the measurement results of the network performance between the virtual clients by initiating a measurement request to the control node, without having to manually operate on the virtual clients to be measured, which simplifies the network performance measurement for the measurement personnel. Manual operation in the process, making it easier for measurement personnel to measure network performance. In particular, in a data center that provides cloud computing services with a large number of virtual clients, measurement personnel can flexibly initiate measurement requests for different virtual clients to control nodes and obtain corresponding measurement results according to their needs. Therefore, cloud computing The service data center can flexibly measure the network performance between the virtual clients according to the requirements, so the measurement personnel can easily and flexibly learn the network performance between the virtual clients.

In addition, in this embodiment of the present invention, since the source detection node and the source virtual client are located on the same physical server and both communicate with the outside world through the source virtual switch, the destination detection node and the destination virtual client are located on the same physical server and both pass through the destination virtual switch. For communication with the outside world, compared with the transmission process of detection packets between the source physical router and the destination physical server, the transmission process of detection packets between the source detection node and the destination detection node and the transmission process of detection packets between the source virtual client and the destination virtual client The transmission process of the packet not only includes the processing process of the packet transmission between physical routers, but also includes the processing process of the packet inside the physical server. Therefore, the transmission process of the probe packet between the source detection node and the destination detection node is closer to the transmission process of the packet between the source virtual client and the destination virtual client. It can be seen that compared with the measurement results obtained by transmitting probe packets between the source physical router and the destination physical server, the network performance identified by the measurement results obtained by transmitting probe packets between the source detection node and the destination detection node is better. Approach the real network performance between the source virtual guest and the destination virtual guest.

In addition, in the embodiment of the present invention, the control node can send measurement instructions to the source detection node and the destination detection node, and receive the measurement result through the control node. It can be seen that the measurement personnel can obtain the measurement result only by interacting with the control node, without having to The functions of sending, receiving, and processing probe packets are manually configured on the physical router. Therefore, the technical implementation of network performance measurement is easier and more flexible.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in this application. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

1 is a schematic diagram of a system framework involved in an application scenario provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a system for measuring network performance in an embodiment of the present invention;

3 is a schematic structural diagram of a system for measuring network performance in an embodiment of the present invention;

4 is a schematic diagram of a network architecture to which the system according to an embodiment of the present invention is applicable;

5 is a schematic diagram of a network architecture to which the system according to an embodiment of the present invention is applicable;

6 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention;

7 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention;

FIG. 8 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention;

FIG. 9 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention;

10 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention;

11 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention;

12 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention;

13 is a schematic structural diagram of an apparatus for measuring network performance according to an embodiment of the present invention;

14 is a schematic structural diagram of an apparatus for measuring network performance in an embodiment of the present invention;

15 is a schematic structural diagram of an apparatus for measuring network performance in an embodiment of the present invention;

16 is a schematic structural diagram of an apparatus for measuring network performance in an embodiment of the present invention;

17 is a schematic structural diagram of an apparatus for measuring network performance according to an embodiment of the present invention;

18 is a schematic structural diagram of a physical server in an embodiment of the present invention;

19 is a schematic structural diagram of a physical server in an embodiment of the present invention;

20 is a schematic structural diagram of a physical server in an embodiment of the present invention;

21 is a schematic structural diagram of a physical server in an embodiment of the present invention;

FIG. 22 is a schematic structural diagram of a physical server in an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only These are some embodiments of the present invention, but not all embodiments.

At present, cloud computing services have become a hot spot in network development. In cloud computing services, a data center integrated with a large number of servers provides users with computing resources and network resources. In a data center, servers are usually virtualized. Specifically, a physical server is virtualized into multiple logical computers through virtualization technology, and each logical computer is a virtual machine (Virtual Machine, VM for short) on the physical server, wherein each virtual machine can run different The operating system, therefore, the applications of each virtual machine can run in the space of the operating system independent of each other. Virtual machines on physical servers usually include virtual clients and virtual switches. The virtual client is a virtual machine provided to the user. Traffic between different virtual clients needs to be transmitted through virtual switches.

The inventor found through research that, with the development of cloud computing services, both the service provider and the service user need to know the network performance between virtual clients. Usually, the data center of cloud computing service provides a large number of virtual clients, and the measurement personnel need to measure the network performance between different virtual clients. However, under the traditional measurement technology of network performance, the measurement personnel need to manually write and trigger ping commands on different virtual clients as required, which is too cumbersome and complicated. Therefore, traditional data centers cannot flexibly measure the network performance between virtual clients and feed back the measurement results according to requirements, and it is difficult for measurement personnel to easily and flexibly understand the network performance between virtual clients. In addition, in order to measure the network performance between physical routers, the measurement personnel configure the functions of sending, receiving, and processing probe packets on the physical routers. The physical routers can transmit probe packets to measure the network performance between physical routers. However, when a message is transmitted between virtual clients, in addition to being transmitted between physical routers, the message also needs to be transmitted between the virtual client and the virtual switch and forwarded by the virtual switch within the physical server. That is, the packet transmission process between virtual clients includes not only the processing process of the packet transmission between the physical routers, but also the processing process of the packet inside the physical router. It can be seen that the measurement result obtained by transmitting probe packets between physical routers cannot reflect the network performance when the packets are processed inside the physical server, so the measurement result cannot truly reflect the network performance between virtual clients.

In order to solve the above problems in the prior art, the embodiments of the present invention provide a method, an apparatus, and a system for measuring network performance. A control node (Master) and a probe node (Probe) corresponding to the virtual client are deployed in the network, and the probe node and the corresponding virtual client are located on the same physical server and communicate with the outside world through the same virtual switch. The control node provides the measurement personnel with an interface to measure the network performance between virtual clients on demand, and is used to receive the measurement request sent by the measurement personnel's terminal and send the measurement instruction to the corresponding probe node, and to receive the data returned by the probe node. The measurement results are forwarded to the measurement personnel's terminal. The measurement results sent by the detection nodes are measured by transmitting detection packets between the detection nodes. It can be seen that, on the one hand, the measurement personnel can flexibly specify the virtual client to be measured according to the requirements through the measurement request, and the control node can flexibly select the corresponding probe node according to the measurement request, so as to obtain the virtual client that meets the requirements. The measurement results of the network performance are fed back to the measurement personnel, so that the measurement personnel do not have to manually operate on the virtual client to be measured, thereby reducing the equipment that the measurement personnel need to manually operate to measure the network performance, and simplifying the measurement personnel in the network performance measurement process. This makes it easier for measurement personnel to measure network performance. Therefore, the data center can flexibly measure the network performance between the virtual clients and feed back the measurement results according to the requirements, and the measurement personnel can easily and flexibly learn the network performance between the virtual clients. On the other hand, since the detection node and the corresponding virtual client are located on the same physical server and communicate with the outside world through the same virtual switch, the process of transmitting packets between the detection nodes and the process of transmitting packets between the corresponding virtual clients is as follows: Very close or even the same, these two processes include both the processing of transmitting packets between physical routers and the processing of transmitting packets between virtual machines inside the physical server. Therefore, by corresponding to the virtual client The measurement results obtained by transmitting detection packets between the detection nodes more closely reflect the real network performance of the network environment where the virtual machine is located.

It should be noted that the term "measurer" mentioned in this document refers to a user of the function of measuring network performance. For example, a surveyor may be a user of a virtual client, or may also be a technician of a provider of cloud computing services. The "terminal of the surveyor" refers to any device that can interact with the surveyor and the control node, and the device can send a measurement request to the control node and receive the measurement result sent by the control node. The term "virtual client" refers to a virtual machine (Virtual Machine, VM for short) that is provided to a user as a user terminal device, and the "user" here refers to the user of the virtual client provided by the cloud computing service. The term "virtual switch" refers to a virtual machine for providing a packet forwarding function for a virtual client, such as an Open Virtual Switch (Open Virtual Switch, OVS for short). The virtual client and the virtual switch are both deployed in the physical server, and the two are virtual machines that provide different functions in the physical server. In addition, the "physical" in the names such as "physical server" and "physical device" mentioned in this document indicates that the device of the name is a physical, physical, and hardware device. The "virtual" in the names such as "virtual client" and "virtual switch" mentioned in this article indicates that the device with this name is a device virtualized by the virtualization technology on the physical device.

For example, one of the application scenarios of the embodiments of the present invention can be applied to the network system shown in FIG. 1 . In this network system, the control node 101 is located in the physical server 108, the detection node 102, the virtual client 104 and the virtual switch 106 are located in the physical server 109, and the detection node 103, the virtual client 105 and the virtual switch 107 are located in the physical server 110. The detection node 102 and the virtual client 104 both communicate with the outside world through the virtual switch 106, the detection node 103 and the virtual client 105 communicate with the outside world through the virtual switch 107, the physical server 108 communicates with the outside world through the physical router 111, and the physical server 109 The physical router 112 communicates with the outside world, and the physical server 110 communicates with the outside world through the physical router 113 . In the process of network performance measurement, the control node 101 receives a measurement request for instructing the control node to feed back a result for identifying the performance of the link from the virtual client 104 to the virtual client 105, and sends the first A measurement instruction is sent to the probe node 103 and a second measurement instruction is sent. The probe node 102 sends a probe request message to the probe node 103 based on the first measurement instruction. The probe node 103 receives the probe request message sent by the probe node 102 and sends a probe response message corresponding to the probe request message to the probe node 102 based on the second test instruction. The probe node 102 receives the probe request message sent by the probe node 103 and generates a result for identifying the performance of the link from the probe node 102 to the probe node 103 according to the probe request message and the probe response message, and sends the result to the control node 101. result. The control node 101 forwards the result with the result. It can be understood that, in the above information exchange manner, the detection node 102 is equivalent to the source detection node, and the detection node 103 is equivalent to the destination detection node. Accordingly, the virtual client 103 corresponds to the source virtual client, and the virtual client 104 corresponds to the destination virtual client. As can be seen from FIG. 1 , compared with the transmission path of the detection packet between the physical router 112 and the physical router 113 , the transmission path of the detection packet between the detection node 102 and the detection node 103 is closer to that between the virtual client 104 and the virtual client 104 . The transmission path of the message between the clients 105, therefore, the measurement result obtained by transmitting the detection message between the detection node 102 and the detection node 103 can more accurately reflect the chain from the virtual client 102 to the virtual client 103. road performance.

In practical applications, the virtual client 103 and the virtual client 105 involved in the measurement request may be located on different physical servers, that is, the physical server 109 and the physical server 110 may be two different physical servers. Alternatively, the virtual client 103 and the virtual client 105 involved in the measurement request may also be located on the same physical server, that is, the physical server 109 and the physical server 110 may also be the same physical server. Furthermore, the control node 101 may be located on any physical server in the network system. That is, the physical server 108 having the control node 101 may be the same physical server as the physical server 109 , or may be the same physical server as the physical server 110 , or may be another physical server different from the physical server 109 and the physical server 110 . A physical server.

It should be noted that the above application scenarios are only shown to facilitate understanding of the principles of the present invention, and are not used to limit the technical solutions provided by the embodiments of the present invention.

The implementation manner of the method, device and system for measuring network performance in the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 2 is a schematic structural diagram of a system for measuring network performance in an embodiment of the present invention. In this embodiment, the system may include, for example:

The control node 201 is configured to receive a measurement request, send a first measurement instruction to the source detection node 202, send a second measurement instruction to the destination detection node 203, receive the first result sent by the source detection node 202, and forward the the first result, wherein the measurement request is used to instruct the control node to feed back a result used to identify the performance of the link from the source virtual client to the destination virtual client;

The source detection node 202 is configured to receive a first measurement instruction sent by the control node, send a detection request message to the destination detection node 203 based on the first measurement instruction, and receive a detection response sent by the destination detection node 203 message, generating a first result according to the probe request message and the probe response message, and sending the first result, where the first result is used to identify the source probe node 202 and the destination probe the performance of the link of the node 203;

The destination detection node 203 is configured to receive the second measurement instruction sent by the control node 201, receive the detection request message sent by the source detection node 201, and send the second measurement instruction to the The source probe node 202 sends the probe response message corresponding to the probe request message.

Wherein, the source detection node 202, the source virtual client and the source virtual switch are located on the source physical server, and the destination detection node 203, the destination virtual client and the destination virtual switch are located on the destination physical server, The source physical server and the destination physical server are two physical servers, the source detection node 202 is used to communicate with the destination detection node 203 through the source virtual switch, and the destination detection node 203 is used to communicate with the destination detection node 203 through the source virtual switch. The destination virtual switch communicates with the source detection node 202, the source virtual client is used to communicate with the destination virtual client through the source virtual switch, and the destination virtual client is used to pass the destination virtual switch Communicate with the source virtual client. Specifically, the port of the source detection node 202 and the port of the source virtual client can both be connected to the source virtual switch, and the port of the destination detection node 203 and the port of the destination detection node are both connected to the destination virtual switch . The port of the source detection node 202 is used for the source detection node to communicate with the outside world, the port of the source virtual client is used for the source virtual client to communicate with the outside world, and the port of the destination detection node 203 is used for the communication between the source virtual client and the outside world. The destination node communicates with the outside world, and the port of the destination virtual client is used for the destination virtual client to communicate with the outside world.

In the system provided in this embodiment, when the measurement personnel need to measure the network performance between the source virtual machine and the destination virtual machine, the measurement personnel can send a measurement request to the control node 201 through the measurement personnel's terminal. After receiving the measurement request, the control node 201 determines the source detection node 202 corresponding to the source virtual client and the destination detection node 203 corresponding to the destination virtual client according to the measurement request. The control node 201 sends the first measurement instruction to the source detection node 202 and sends the second measurement instruction to the destination detection node 203 . After receiving the first measurement instruction, the source detection node 202 sends a detection request message to the destination detection node 203 based on the first measurement instruction. After receiving the second measurement instruction and the detection request message, the destination detection node 203 sends a detection response message corresponding to the detection request message to the source detection node 202 based on the second measurement instruction. The source detection node 202 generates a first result for identifying the performance of the link from the source detection node 202 to the destination detection node 203 according to the detection request message and the detection response message, and sends the first result to the control node 201. first result. After receiving the first result, the control node 201 forwards the first result as a result used to identify the performance of the link from the source virtual client to the destination virtual client to the terminal of the measuring person The first result is so that the surveyor obtains the first result through the terminal of the surveyor. Wherein, the measurement request may be from the user of the virtual client, that is, the user of the cloud computing service, or the user measurement request may also be from the user of the operator who provides the cloud computing service, and the operator user is the user of the cloud computing service of users have deployed cloud computing services in data centers. Furthermore, the control node 201 may be located on any physical server in the network. For example, if there is a physical server serving as the controller in the network, the control node 201 may be located on the physical server serving as the controller.

In a specific implementation manner, the measurement request may carry the identifier of the source virtual client, the identifier of the destination virtual machine, and a service identifier used to indicate a network performance measurement service. The control node 201 may determine, according to the service identifier in the measurement request, that the measurement request is used to request a service for measuring network performance. According to the identification of the source virtual client and the identification of the destination virtual client in the measurement request, the control node 201 can determine that the measurement request is directed to the source virtual client and the destination virtual client, so as to determine whether the measurement request is related to the source virtual client and the destination virtual client. The source detection node 202 corresponding to the source virtual client and the destination detection node 203 corresponding to the destination virtual client. It can be understood that the measurement personnel can specify the source virtual client and the destination virtual client whose network performance needs to be measured according to the requirements, that is, the measurement request can carry the identifiers of the source virtual client and the destination virtual client specified by the measurement personnel according to the requirements. , so that the control node 201 can measure the network performance between the specified source virtual client and the destination virtual client as required.

In addition, the measurement request may further carry the type of the indicator to which the result for identifying the performance of the link from the source virtual client to the destination virtual client belongs. The control node 201 may determine, according to the type in the measurement request, the type of the indicator to which the measurement result of the measurement request request belongs. If the system shown in FIG. 2 can measure the results of multiple different types of indicators of network performance, the measurement request may carry the types of indicators specified according to requirements, so that the control node 201 can measure the results of indicators of specified types according to requirements. Wherein, the indicator is used to reflect the performance of the link from the source virtual client to the destination virtual client. The type of the indicator may be delay, jitter, packet loss rate or load rate, etc. .

Further, after receiving the measurement request, the control node 201 can extract the identifier of the source virtual client, the identifier of the destination virtual client, the service identifier, the type, and based on the identifier of the source virtual client, the identifier of the destination virtual client, the service identifier and the type, the first measurement instruction and the second measurement instruction are generated. In this way, the first measurement instruction and the second measurement instruction may also carry the identifier of the source virtual client, the identifier of the destination virtual machine, the service identifier and the type. It should be noted that, in order to measure the results of different types of indicators, the source detection node 202 needs to send the detection request message to the destination detection node 203 in different sending modes. Therefore, in the case that the measurement request carries the type, the source detection node 202 may perform the following operations in order to implement the sending of the detection request packet to the destination detection node based on the first measurement instruction: according to the first measurement instruction The type in the measurement instruction determines the sending mode of the probe request message; according to the sending mode, the probe request message is sent to the destination probe node. Wherein, the sending mode may indicate the sending times and sending interval of the probe request message, and the like.

In a specific implementation manner, the source detection node 202 may generate results of different types of indicators according to different receiving conditions of the detection response message. For example, if the source probe node 202 receives the probe response message within a predetermined time after sending the probe request message, the data from the source probe node 202 to the destination probe node 203 can be generated according to the reception time of the probe response message. The result of the network delay of the link. For another example, if the source detection node 202 cannot receive the detection response message within a predetermined time after sending the detection request message, the current detection event can be regarded as a packet loss event, and the source detection node 202 can be generated to the destination. The result of the network packet loss rate of the link of the probe node 203.

In this embodiment, various implementations can be used to deploy the source detection node 202 and the destination detection node 203 .

As an example, the source probe node 202 may be deployed in the source virtual client, and the destination probe node may be deployed in the destination virtual client. Specifically, the source detection node 202 may be a process in the source virtual client, the port of the source detection node 202 is equivalent to the port of the source virtual client, and the way the source detection node 202 communicates with the outside world is all Describes how the source virtual client communicates with the outside world. Correspondingly, the destination detection node 203 may be a process in the destination virtual client, the port of the destination detection node 203 is equivalent to the port of the destination virtual client, and the way the destination detection node 203 communicates with the outside world is all Describe the way the destination virtual client communicates with the outside world. Therefore, the transmission path of the probe request message and the probe response message between the source detection node 202 and the destination detection node 203 is the transmission path of the message between the source virtual client and the destination virtual client. It can be seen that the network performance reflected by the first result measured through the probe request message and the probe response message is equivalent to the link from the source virtual client to the destination virtual client real performance.

As another example, the source detection node 202 may be deployed in a first virtual machine, the port of the source detection node 202 is the port of the first virtual machine, and the first virtual machine and the source virtual client are located on the source physical server Two virtual machines, the first virtual machine is only used to deploy the source detection node 202; the destination detection node 203 can be deployed in the second virtual machine, the port of the destination detection node 203 is the port of the second virtual machine, and the A virtual machine and the source virtual client are two virtual machines located on the source physical server, and the second virtual machine is only used for deploying the destination probe node. Specifically, on the source physical server where the source detection node 202 , the source virtual client, and the source virtual switch are deployed at the same time, a first virtual machine only used for deploying the source detection node 202 may be deployed. That is, the first virtual machine is another virtual machine on the source physical server that is independent of the source virtual client and the source virtual switch, and the source detection node is one of the first virtual machines. A process, the first virtual machine is only used to complete the function of the source detection node 202 . Wherein, both the port of the first virtual machine and the port of the source virtual client are connected to the source virtual switch. Correspondingly, on the destination physical server where the destination detection node 203 , the destination virtual client, and the destination virtual switch are deployed at the same time, a second virtual machine that is only used to deploy the destination detection node 203 may be deployed. That is, the second virtual machine is another virtual machine on the destination physical server that is independent of the destination virtual client and the destination virtual switch, and the source detection node is one of the first virtual machines. A process, the second virtual machine is only used to complete the function of the destination detection node 203 . Wherein, the port of the second virtual machine and the port of the destination virtual client are both connected to the destination virtual switch. Therefore, the transmission path of the probe request message and the probe response message between the source detection node 202 and the destination detection node 203 is close to the transmission path of the message between the source virtual client and the destination virtual client. It can be seen that the network performance reflected by the first result measured by the probe request message and the probe response message is close to the actual link between the source virtual client and the destination virtual client. performance.

In practical applications, measurement personnel are often concerned about abnormal network performance. The system shown in FIG. 2 can feed back the abnormal situation of the network performance to the measurement personnel based on the measured first result. As an example, the source detection node 202 may initiate an alarm based on the first result. Specifically, in the system, the source detection node 202 can also be used to determine whether the first result belongs to the first range, and to generate and generate a message when the first result does not belong to the first range. Send the first alarm to the control node 201; the control node 201 may also be configured to receive the first alarm sent by the meta-probe node, and forward the first alarm. As another example, the control node 201 may initiate an alarm based on the first result. Specifically, in the system, the control node 201 is further configured to determine whether the first result belongs to a third range, and to generate a third alarm when the first result does not belong to the third range and forwarded.

Wherein, the first range is a result range previously set in the source detection node 202 for the first result. The first range corresponds to a normal state of network performance. If the first result belongs to the first range, the source detection node 202 determines that the network performance is normal. If the first result does not belong to the first range, the source detection node 202 determines that the network performance is abnormal. The third range is a result range previously set in the control node 201 for the first result. The third range corresponds to a normal state of network performance. If the first result belongs to the first range, the control node 201 determines that the network performance is normal. If the first result does not belong to the third range, the control node 201 determines that the network performance is abnormal. It can be understood that the first range and the third range may be the same or different.

In the process of transmitting the probe request message and the probe response message between the source probe node 202 and the destination probe node 203, except that the source probe node 202 can measure the source probe node according to the reception of the probe response message In addition to the performance of the link from 202 to the destination probe node 203, the destination probe node 203 can also measure the performance of the link from the source probe node 202 to the destination probe node 203 according to the reception of the probe request message. Specifically, in the system, the destination detection node 203 is further configured to generate a second result according to the detection request message, and send the second network performance parameter, where the second result is used to identify The performance of the link from the source detection node 202 to the destination detection node 203; the control node 201 is further configured to receive the second result, and forward the second result.

Further, if the destination detection node 203 measures the second result, the system shown in FIG. 2 can feed back the abnormal situation of the network performance to the measuring personnel based on the measured second result. As an example, the destination detection node 203 may initiate an alarm based on the second result. Specifically, in the system, the destination detection node 203 is further configured to determine whether the second result is in the second range, and, when the second result does not belong to the second range, generate and report to the The control node 201 sends a second alarm; the control node 201 is further configured to receive the second alarm, and forward the second alarm. As another example, the control node 201 may initiate an alarm based on the second result. Specifically, in the system, the control node 201 is further configured to determine whether the second result belongs to a fourth range, and to generate a fourth alarm when the second result does not belong to the fourth range and forwarded.

Wherein, the second range is a result range previously set in the destination detection node 203 for the second result. The second range corresponds to a normal state of network performance. If the second result belongs to the range of the second result, the destination detection node 203 determines that the network performance is normal. If the second result does not belong to the second range, the destination detection node 203 determines that the network performance is abnormal. The fourth range is a result range previously set in the control node 201 for the second result. The fourth range corresponds to a normal state of network performance. If the second result belongs to the fourth range, the control node 201 determines that the network performance is normal. If the second result does not belong to the fourth range, the control node 201 determines that the network performance is abnormal. It can be understood that the second range and the fourth range may be the same or different.

In order to better adapt to the network of the cloud computing data center, the system of this embodiment may also add a broker node (Broker or Agent) between the control node and the detection node, and the information exchanged between the control node and the detection node is all handled by the broker Node forwarding. As shown in FIG. 3 , on the basis of FIG. 2 , the system of this embodiment may further include:

The source proxy node 301 is configured to receive the first measurement instruction sent by the control node 201 and forward the first measurement instruction to the source detection node 202, and receive the first measurement instruction sent by the source detection node 202 the first result and forward the first result to the control node 201;

The destination proxy node 302 is configured to receive the second measurement instruction sent by the control node 201 and forward the second measurement instruction to the destination detection node.

In the system shown in FIG. 3, after receiving the measurement request, the control node 201 determines the source detection node 202 corresponding to the source virtual client and the destination corresponding to the destination virtual client according to the measurement request Probe node 203. The control node 201 sends the first measurement instruction to the source proxy node 301 corresponding to the source detection node 201 and sends the second measurement instruction to the destination proxy node 302 corresponding to the destination detection node 203 . After receiving the first measurement instruction, the source proxy node 301 determines the source detection node 202 corresponding to the first measurement instruction according to the first measurement instruction, and forwards the first measurement instruction to the source detection node 202 measurement order. After receiving the second measurement instruction, the destination proxy node 302 determines the destination detection node 203 corresponding to the second measurement instruction according to the second measurement instruction, and forwards the destination detection node 203 to the destination detection node 203 Measurement node. After receiving the first measurement instruction, the source detection node 202 sends a detection request message to the destination detection node 203 based on the first measurement instruction. After receiving the second measurement instruction and the detection request message, the destination detection node 203 sends a detection response message corresponding to the detection request message to the source detection node 202 based on the second measurement instruction. The source probe node 202 generates a first result for identifying the performance of the link from the source probe node 202 to the destination probe node 203 according to the probe request message and the probe response message, and sends it to the source proxy node 301 . After receiving the first result, the source proxy node 301 forwards the first result to the control node 201 . After receiving the first forwarding, the control node 201 forwards the first result.

In a specific implementation manner, after the source detection node 202 receives the first measurement instruction, it may perform a first preparation for network performance measurement, and send the first preparation to the source proxy node 301 after the first preparation is completed. Ready information. After receiving the first ready information, the source proxy node 301 sends a first measurement start instruction to the source detection node 202 . After receiving the first start instruction, the source detection node 202 sends the detection request packet to the destination detection node 203 and receives the detection response packet sent by the destination detection packet 203 . The first preparation work includes, for example, that the source detection node 202 opens a port for sending the detection request packet to the destination detection node 203 and receiving the detection response packet sent by the destination detection node 203 . Correspondingly, after the destination detection node 203 receives the second measurement instruction, it may perform a second preparation for network performance measurement, and send second preparation information to the destination proxy node 302 after the second preparation is completed. The destination proxy node 302 sends a first measurement start instruction to the destination probe node 203 after receiving the second ready information. After receiving the first start instruction, the destination detection node 203 receives the detection request message sent by the source detection node 202 and returns the detection response message to the source detection node 202 . The second preparation work includes, for example, that the destination detection node 203 opens a port for receiving the detection request message sent by the source detection node 202 and returning the detection response message to the destination detection node 203 .

It can be understood that, in the system shown in FIG. 3, in addition to the first measurement instruction, the second measurement instruction and the first result, other information exchanged between the control node and the detection node may also be Forwarded through proxy nodes.

For example, if the destination detection node 203 measures the second result, the destination detection node 203 may send the second result to the control node 201 through the destination proxy node 302 . Specifically, in the system shown in FIG. 3 , the destination proxy node 302 may also be configured to receive the second result sent by the destination detection node 203 and forward the second result to the control node 201 .

For another example, if the source detection node 201 initiates the first alarm based on the first result, the source detection node 202 may send the first alarm to the control node 201 through the source proxy node 301 . Specifically, in the system shown in FIG. 3 , the source proxy node 301 can also be configured to receive the first alarm sent by the source detection node 202 and forward the first alarm to the control node 201 .

For another example, if the destination detection node 203 initiates the second result alarm based on the second result, the destination detection node 203 may send the second alarm to the control node 201 through the destination proxy node 302 . Specifically, in the system shown in FIG. 3 , the destination proxy node 302 may also be configured to receive the second alarm sent by the destination detection node 203 and forward the second alarm to the control node 201 .

In some network environments, the transmission of information between the source proxy node 301 and the source probe node 202 may not be isolated from other information transmissions. In such a network environment, the source proxy node 301 can sign the information to be sent to the source detection node 202, and the source detection node 202 can perform signature verification on the received information, which ensures that the source proxy node 301 and the source detection node 202 Security of information transmission between 202. Specifically, in the system shown in FIG. 3, the source proxy node 301 may also be used to sign the first measurement instruction before forwarding the first measurement instruction; the source detection node 202, It can also be used to verify the signed first measurement instruction after receiving the first measurement instruction, and send a detection request message to the destination detection node 203 when the verification is passed.

Accordingly, in some network environments, the information transmission between the destination proxy node 302 and the destination detection node 203 may not be isolated from other information transmissions. In such a network environment, the destination proxy node 302 can sign the information to be sent to the destination detection node 203, and the destination detection node 203 can perform signature verification on the received information, thus ensuring that the destination proxy node 302 and the destination detection node 203 the security of information transmission between. Specifically, in the system shown in FIG. 3, the destination proxy node 302 can also be used to sign the second measurement instruction before forwarding the second measurement instruction; the destination detection node 303, It can also be used to verify the signed second measurement instruction after receiving the second measurement instruction, and send a corresponding message to the source detection node 201 based on the second measurement instruction when the verification passes the probe response packet of the probe request packet.

In this embodiment, various implementations can be used to deploy the source proxy node 301 and the destination proxy node 302 .

As an example, only one proxy node corresponding to the control node 201 may be deployed in the network, that is, the proxy node that communicates with the control node 201 only includes the only one proxy node. The information transmitted between the control node 201 and all probe nodes under the control of the control node 201 is forwarded through the only one proxy node. The only one proxy node may be deployed on any physical server in the network that can communicate with the control node 201 and all detection nodes under the control of the control node 201 . For example, the only one proxy node may be deployed together with the control node 201 on a physical server serving as a controller. For another example, the only one proxy node may be deployed on the same physical server together with one or more virtual clients. For another example, the only one proxy node may be deployed on an independent physical server, the independent physical server is only deployed with the only one proxy node, and the independent physical server does not deploy the control node 201, any Virtual guest and any probe nodes.

It can be understood that if only the only one proxy node is deployed in the network corresponding to the control node 201, the source proxy node 301 and the destination proxy node 302 are actually the same proxy node located on the same physical server, or in other words, the source proxy node 301 and the destination proxy node 302 Both the proxy node 301 and the destination proxy node 302 are the only one proxy node. Since the only one proxy node is deployed on only one physical server in the network, the detection nodes corresponding to most or all of the virtual clients are not deployed on the physical server on which the only one proxy node is deployed. It can be seen that if the source proxy node 301 and the destination proxy node 302 are the same proxy node located on the same physical server, the source detection node 202 and the source proxy node 301 may not be on the same physical server, and the destination detection node 203 and the destination proxy node 302 may also be not on the same physical server. In order to enable communication between the source detection node 202 and the source proxy node 301, in the system shown in FIG. 3, the control node 201 can also be used to obtain the source proxy before sending the first measurement instruction The first route from the node 301 to the source detection node 202 and the second route from the source detection node 202 to the source proxy node 301 send the first route to the source proxy node 301, and send the first route to the source proxy node 301. The probe node 202 sends the second route, where the first route is used by the source proxy node 301 to send the first measurement instruction to the source probe node 202, and the second route is used by the source The probe node 02 sends the first result to the source proxy node 301 . In addition, the first route and the second route can also be used to transmit other information between the source detection node 202 and the source proxy node 301, for example, the second route can be used to transmit the aforementioned first alarm. Correspondingly, in order to enable communication between the destination detection node 203 and the destination proxy node 302, in the system shown in FIG. 3, the control node 201 can also be used to obtain the acquired information before sending the second measurement instruction. the third route from the destination proxy node 302 to the destination detection node 203 and the fourth route from the destination detection node 203 to the destination proxy node 302, send the third route to the destination proxy node 302, and send the third route to the destination proxy node 302. The destination detection node 203 sends the fourth route, the third route is used for the destination proxy node 301 to send the second measurement instruction to the destination detection node 203, and the fourth route is used for the The destination detection node 203 sends the second result to the destination proxy node. In addition, the third route and the fourth route can also be used to transmit other information between the destination detection node 203 and the destination proxy node 301, for example, the fourth route can be used to transmit the aforementioned second alarm.

If both the source proxy node 301 and the destination proxy node 302 are the only proxy node, in the above-mentioned specific implementation manner of the first ready information and the second ready information, the only proxy node may After both the first ready information and the second ready information are received, the first measurement start instruction is sent to the source detection node 202 and the second measurement start instruction is sent to the destination detection node 203 .

As another example, a proxy node may be respectively deployed on each physical server on which the virtual client and the probe node are deployed in the network, that is, the proxy node corresponding to the probe node and the probe node are deployed on the same physical server. If the probe node and the proxy node are deployed on the same physical server, the probe node and the proxy node can communicate with each other. If the probe node and the proxy node are deployed on different physical servers, the probe node and the proxy node cannot communicate with each other. Since the detection nodes under the control of the control node 201 are usually deployed on a plurality of different physical servers, the control node 201 can usually communicate with the proxy nodes deployed on the plurality of physical servers.

It can be understood that if a proxy node is respectively deployed on each physical server in which the virtual client and the detection node are deployed in the network, the source proxy node 301 and the source detection node 202 are both deployed in the same physical server, and the destination proxy node 302 and the detection node are both deployed in the same physical server. The target detection detection nodes 203 are all deployed in the same physical server. In other words, the source proxy node 301 is a process in the source physical server, and the destination proxy node 302 is a process in the destination physical server, wherein the source physical server represents the physical server on which the active detection node 202 is deployed, and the destination physical server represents the deployment The physical server of node 203 is purposefully probed.

If both the source proxy node 301 and the source detection node 202 are deployed in the source physical server and the destination proxy node 302 and the destination detection node 203 are both deployed on the destination physical server, the source detection node 202 and the source proxy node 301 can be connected through a socket The communication between the destination detection node 203 and the destination proxy node 302 can also be implemented through sockets. Specifically, in the source physical server, the source detection node 202 may be deployed in the source Namespace (namespace), and the source proxy node 301 may be deployed outside the source Namespace. At this time, the source proxy node 301 and the source probe node 202 can communicate through sockets. In the destination physical server, the destination detection node 203 may be deployed in the destination Namespace, and the destination proxy node 302 may be deployed outside the destination Namespace. At this time, the destination proxy node 302 and the destination detection node 203 can communicate through sockets. Wherein, the source Namespace and the destination Namespace may specifically be Linux Network Namespace. The source Namespace may be a Namespace created in the virtual machine on which the source detection node 202 is deployed, for example, the source Namespace is the Namespace in the source virtual client or the Namespace in the first virtual machine. The destination namespace may be a namespace created in the virtual machine where the destination detection node 203 is deployed, for example, the destination namespace is the namespace in the destination virtual client or the namespace in the second virtual machine. The socket may specifically be a UNIX domain socket, and the socket may specifically be a UNIX domain socket. It can be understood that the Linux Network Namespace can isolate the probe request message and the probe response message transmitted between the source probe node 202 and the destination probe node 203 from other transmission information.

If both the source proxy node 301 and the source detection node 202 are deployed in the source physical server and the destination proxy node 302 and the destination detection node 203 are both deployed on the destination physical server, the source detection node 202 may be dynamically created by the source proxy node 301, The destination probe node 203 may be dynamically created by the destination proxy node 302 . Specifically, in the system shown in FIG. 3 , the control node 201 may also be configured to send the first control to the source proxy node 301 before sending the first measurement instruction and the second measurement instruction information and send second control information to the destination proxy node 302, specifying the first port on the source virtual switch for the source detection node 202 and specifying the first port on the destination virtual switch for the destination detection node 203 Two ports, and establishing a virtual local area network (Virtual Local Area Network, VLAN for short) including the first port and the second port, the source detection node 202 can pass the first port and the destination detection node. 203 communication, the destination detection node 203 can communicate with the source detection node 202 through the second port, and the virtual local area network is used to transmit the detection request message and the detection response message; the source agent The node 301 may be further configured to receive the first control information, and create the first virtual machine and the source detection node 202 in the source physical server based on the first control information; the destination agent The node 301 may be further configured to receive the second control information, and create the second virtual machine and the destination detection node 203 in the destination physical server based on the second control information. The VLAN may be a dedicated network for measurement, that is, only the probe request message and the probe response message are transmitted in the VLAN without transmitting other information. Furthermore, after the source proxy node 301 creates the source probe node 202 , the source proxy node 301 may send third ready information to the control node 201 . After receiving the third ready information, the control node 201 may send the first measurement instruction to the source proxy node 301 . Correspondingly, after the destination proxy node 302 creates the destination detection node 203 , the destination proxy node 302 may send the fourth ready information to the control node 201 . After receiving the fourth ready information, the control node 201 may send the second measurement instruction to the destination proxy node 302 .

If both the source proxy node 301 and the source detection node 202 are deployed in the source physical server and the destination proxy node 302 and the destination detection node 203 are both deployed in the destination physical server, then the source proxy node 301 and the destination proxy node 302 may be deployed in the same physical server The same agent node of the server may also be different agent nodes deployed on different physical servers. Specifically, if the source virtual client and the destination virtual client are deployed on different physical servers, the source detection node 202 and the destination detection node 203 are deployed on different physical servers, that is, the source physical server and the destination physical server are Different physical servers, at this time, the source proxy node 301 and the destination proxy node 302 are different proxy nodes deployed on different physical servers. If the source virtual client and the destination virtual client are deployed on the same physical server, the source detection node 202 and the destination detection node 203 are deployed on the same physical server, that is, the source physical server and the destination physical server are the same physical server. The time source proxy node 301 and the destination proxy node 302 are the same proxy node deployed on the same physical server.

In this embodiment, the system shown in FIG. 3 can be applied to networks of different architectures.

As an example, the system shown in FIG. 3 can be applied to the network architecture shown in FIG. 4 . The network architecture shown in FIG. 4 includes a physical server 401 serving as a controller, a physical server 402 deployed with virtual clients, a control network 403 and a forwarding network 404 . The control node 201 may be deployed on the physical server 401 . The network architecture shown in FIG. 4 can only deploy one proxy node that can communicate with the control node 201 on one physical server 402. At this time, the source proxy node 301 and the destination proxy node 302 are the same physical server 402. agent node. The network architecture shown in FIG. 4 may deploy a proxy node that can communicate with the control node 201 on each physical server 402. At this time, the source proxy node 301 and the destination proxy node 302 may be deployed on the same physical server 402. The same proxy node may also be different proxy nodes deployed on different physical servers 402 . The probe node and its corresponding virtual client are deployed on the same physical server 402 . Specifically, the source detection node 202 and the source virtual client are deployed on the same physical server 402 . The destination detection node 203 and the virtual client are deployed on the same physical server 402 . The control network 403 is used to transmit information related to management or control between the physical server 401 and the physical server 402, such as the aforementioned first measurement instruction, the aforementioned second measurement instruction, the aforementioned first network performance parameter, and the like. The data network is used for information transmission between virtual machines on the physical server 402 and information transmission between virtual machines on the physical server 402 and users, such as the aforementioned probe request message, the aforementioned probe response message, and the like.

As another example, the system shown in FIG. 3 may be applied to the network architecture shown in FIG. 5 . The network architecture shown in FIG. 5 includes a physical server 501 serving as a controller, a physical server 502 deployed with virtual clients, and a forwarding network 503 . The control node 201 may be deployed on the physical server 501 . The network architecture shown in FIG. 5 can only deploy one proxy node that can communicate with the control node 201 on one physical server 502. At this time, the source proxy node 301 and the destination proxy node 302 are the same server deployed on the same physical server 502. agent node. The network architecture shown in FIG. 4 may deploy a proxy node that can communicate with the control node 201 on each physical server 502. At this time, the source proxy node 301 and the destination proxy node 302 may be deployed on the same physical server 502. The same proxy node may also be different proxy nodes deployed on different physical servers 502 . The probe node and its corresponding virtual client are deployed on the same physical server 502 . Specifically, the source detection node 202 and the source virtual client are deployed on the same physical server 502 . The destination detection node 203 is deployed on the same physical server 502 as the virtual client. The forwarding network 503 is used to transmit information related to management or control between the physical server 501 and the physical server 502, such as the aforementioned first measurement instruction, the aforementioned second measurement instruction, the aforementioned first result, and the like. The forwarding network 503 is also used to transmit information between the virtual machines on the physical server 502 and transmit information between the virtual machines on the physical server 502 and users, such as the aforementioned probe request message, the aforementioned probe response message, and the like.

Through the technical solution of this embodiment, on the one hand, the measurement personnel can flexibly designate the virtual client to be measured according to the measurement request, and the control node can flexibly select the corresponding detection node according to the measurement request, so as to obtain the virtual client that meets the requirements. The measurement results of the network performance between clients are fed back to the measurement personnel, so that the measurement personnel do not have to manually operate on the virtual client to be measured, thereby reducing the need for manual operation of the equipment for the measurement personnel to measure the network performance, and simplifying the measurement personnel. Manual operation during network performance measurement, making it easier for measurement personnel to measure network performance. Therefore, the data center can flexibly measure the network performance between the virtual clients and feed back the measurement results according to the requirements, and the measurement personnel can easily and flexibly learn the network performance between the virtual clients. On the other hand, since the detection node and the corresponding virtual client are located on the same physical server and communicate with the outside world through the same virtual switch, the process of transmitting packets between the detection nodes and the process of transmitting packets between the corresponding virtual clients is as follows: Very close or even the same, these two processes include both the processing of transmitting packets between physical routers and the processing of transmitting packets between virtual machines inside the physical server. Therefore, by corresponding to the virtual client The measurement results obtained by transmitting detection packets between the detection nodes more closely reflect the real network performance of the network environment where the virtual machine is located.

In order to make those skilled in the art understand the specific application manners of the embodiments of the present invention more clearly, the embodiments of the present invention are described below by using two exemplary application scenarios.

In the first exemplary application scenario, active detection nodes are deployed in the source virtual client, and purposeful detection nodes are deployed in the destination virtual client. Only one proxy node that can communicate with the control node is deployed in the network system, that is, the source proxy node and the destination proxy node are the same proxy node. In the first exemplary application scenario, FIG. 6 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention. In this embodiment, the method may include, for example:

601. The control node receives the measurement request.

602. The control node acquires the relevant information of the source virtual client and the destination virtual client according to the measurement request.

The relevant information may include the identifier of the source virtual client and the identifier of the destination virtual client, and may also include the identifier of the source detection node in the source virtual client and the destination virtual client. The identity of the destination probe node in the client.

603. The control node establishes a first route from the proxy node to the source probe node, a second route from the source probe node to the proxy node, and a third route from the proxy node to the destination probe node. route and a fourth route from the destination probe node to the proxy node.

604. The control node sends a first measurement instruction and a second measurement instruction to the proxy node.

605. The proxy node signs the first measurement instruction, and forwards the signed first measurement instruction to the source detection node.

606. After receiving the signed first measurement instruction, the source detection node verifies the signed first measurement instruction. If the verification is passed, you can enter 607.

It can be understood that, if the verification in 606 fails, the source detection node may terminate the process, or may also feed back error information to the proxy node.

607. The source detection node performs a first preparation for network performance measurement, and returns first preparation information to the proxy node after completing the first preparation.

608. The proxy node signs the second measurement instruction, and forwards the signed second measurement instruction to the destination detection node.

609. After receiving the signed second measurement instruction, the destination detection node verifies the signed second measurement instruction. 610 can be entered if the verification is passed.

It can be understood that, if the verification in 609 fails, the destination detection node may terminate the process, or may also feed back error information to the proxy node.

610. The destination detection node performs a second preparation for network performance measurement, and returns second preparation information to the proxy node after completing the second preparation.

It should be noted that, after the execution of 604 is completed, 605 to 607 and 608 to 610 are processes whose execution order is not limited to each other. For example, in this embodiment, the processes of 605 to 607 may be executed first, and then the processes of 608 to 610 may be executed, or, in this embodiment, the processes of 608 to 610 may be executed first, and then the processes of 605 to 607 may be executed, or, this embodiment may also The processes of 605-607 and the processes of 608-610 are executed synchronously.

611. After receiving the first ready information and the second ready information, the proxy node sends a first measurement start instruction to the source detection node and a second measurement start instruction to the destination detection node.

612. After receiving the first start measurement instruction, the source detection node sends a detection request message to the destination detection node.

613. After receiving the second start test instruction, the destination detection node receives the detection request message sent by the source detection node, and sends the detection request message corresponding to the detection request message to the source detection node. Probe response message.

614. The source detection node receives the detection response message sent by the destination detection node, and generates a detection request message for identifying the source detection node to the destination detection message according to the detection request message and the detection response message. results of the performance of the node's link and send the results to the proxy node.

615. After receiving the result, the proxy node forwards the result to the control node.

616. After receiving the result, the control node forwards the result.

617. The source detection node determines whether the result belongs to a preset range.

Wherein, the preset range represents the result range of normal network performance.

618. After determining that the result does not belong to the preset range, the source detection node generates an alarm and sends it to the proxy node.

619. After receiving the alarm, the proxy node forwards the alarm to the control node.

620. After receiving the alarm, the control node forwards the alarm.

In the technical solution of this embodiment, by deploying a control node and an agent node in the network system and deploying a detection node in the virtual client, the network system can flexibly measure the network between different virtual clients according to user requirements performance. Moreover, the path for transmitting the probe message between the detection nodes is the path for transmitting the message between the virtual clients, so the measurement result can accurately reflect the real network performance between the virtual clients.

In the second exemplary application scenario, the source detection node is deployed in the first virtual machine, the port of the first virtual machine and the port of the source virtual client are connected to the source virtual switch, and the destination detection node is deployed on the first virtual machine. In the two virtual machines, the port of the second virtual machine and the port of the destination virtual client are connected to the destination virtual switch. In the network system, an agent node is respectively deployed on each physical server where the virtual client is deployed, that is, the source agent node and the source detection node are both deployed on the source physical server, and the destination agent node and the destination detection node are both deployed on the destination on the physical server. In the second exemplary application scenario, FIG. 7 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention. In this embodiment, the method may include, for example:

701. The control node receives the measurement request.

702. The control node acquires the relevant information of the source virtual client and the destination virtual client according to the measurement request.

For the relevant information, reference may be made to the embodiment shown in FIG. 6 above.

703. The control node establishes a VLAN for measurement, allocates a first port to the VLAN on the source virtual switch of the source physical server, and allocates a second port to the VLAN on the destination virtual switch of the destination physical server.

704. The control node sends first control information to the source proxy node and sends second control information to the destination proxy node.

705. After receiving the first control information, the source proxy node creates the first virtual machine and the source detection node in the source physical server.

Wherein, an active Namespace is opened in the first virtual machine, and the source detection node is deployed in the source Namespace.

706. The source proxy node returns the first ready information to the control node.

It can be understood that the first ready information is equivalent to the third ready information in the foregoing system embodiment.

707. After receiving the second control information, the destination proxy node creates the second virtual machine and the destination detection node in the destination physical server.

Wherein, a target Namespace is opened in the second virtual machine, and the target detection node is deployed in the target Namespace.

708. The destination proxy node returns second ready information to the control node.

It can be understood that the second ready information is equivalent to the fourth ready information in the foregoing system embodiment.

709. The control node assigns the first port to the first virtual machine and assigns the second port to the second virtual machine.

The source detection node can communicate with the destination detection node through the first port, and the destination detection node can communicate with the source detection node through the second port.

710. The control node sends a first measurement instruction to the source proxy node and sends a second measurement instruction to the destination proxy node.

711. After receiving the first measurement instruction, the source proxy node forwards the first measurement instruction to the source detection node.

712. After receiving the second measurement instruction, the destination proxy node forwards the second measurement instruction to the source detection node.

713. After receiving the first measurement instruction, the source detection node sends the detection request message to the destination detection node.

714. After receiving the second measurement instruction, the destination probe node receives the probe request message sent by the source probe node, and sends a probe corresponding to the probe request message to the source probe node response message.

715. The source detection node receives the detection response message sent by the destination detection node, and generates a detection request message for identifying the source detection node to the destination detection message according to the detection request message and the detection response message. results of the performance of the node's link and send the results to the source proxy node.

716. After receiving the result, the source proxy node forwards the result to the control node.

717. After receiving the result, the control node forwards the result.

718. The source detection node determines whether the result belongs to a preset range.

Wherein, the preset range of network performance represents the result range of normal network performance.

719. After determining that the result does not belong to the preset range, the source detection node generates an alarm and sends it to the proxy node.

720. After receiving the alarm, the source proxy node forwards the alarm to the control node.

721. After receiving the alarm, the control node forwards the alarm.

In the technical solution of this embodiment, a control node is deployed in the network system, an agent node is respectively deployed in each physical server where the virtual client is located, and another node connected to the virtual client on the same virtual switch A detection node is deployed in a virtual machine, and the network system can flexibly measure the network performance between different virtual clients according to the requirements. Moreover, the path for transmitting probe packets between detection nodes is closer to the path for transmitting packets between virtual clients than the path for transmitting packets between physical routers. Therefore, the measurement results can more accurately reflect the path of transmitting packets. Real network performance between virtual guests.

FIG. 8 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention. In this embodiment, the method may specifically include, for example:

801. The control node receives a measurement request, where the measurement request is used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client;

802. The control node sends a first measurement instruction to the source detection node and sends a second measurement instruction to the destination detection node, where the first measurement instruction is used to instruct the source detection node to send a detection request message to the destination detection node and receive a corresponding the probe response message of the probe request message and generate a first result according to the probe request message and the probe response message, where the first result is used to identify the source probe node to the destination probe node The performance of the link, the second measurement instruction is used to instruct the destination probe node to send the probe response message corresponding to the probe request message to the source probe node;

803. The control node receives the first result sent by the source detection node, and forwards the first result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request, the first measurement instruction, and the second measurement instruction all carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier for identifying the source. The type of metric to which the result of the virtual guest-to-destination virtual guest link belongs.

Optionally, the method further includes:

receiving, by the control node, the second result sent by the destination detection node, and forwarding the second result;

The second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the performance of the link from the source detection node to the destination detection node.

Optionally, the method further includes:

receiving, by the control node, a first alarm sent by the source detection node, and forwarding the first alarm;

receiving, by the control node, the second alarm sent by the destination detection node, and forwarding the second alarm;

The first alarm is generated and sent by the source detection node when it determines that the first result does not belong to the first range, and the second alarm is generated by the destination detection node when it determines that the second result does not belong to the first range. Generated and sent when belonging to the second range.

Optionally, the method further includes:

the control node determines whether the first result belongs to a third range;

When the first result does not belong to the third range, the control node generates a third alarm and forwards it;

the control node determines whether the second result belongs to a fourth range;

When the second result does not belong to the fourth range, the control node generates and forwards a fourth alarm.

optional,

The step 802 specifically includes: the control node sends the first measurement instruction to the source proxy node to instruct the source proxy node to forward the first measurement instruction to the source detection node; the control node sends the destination proxy sending the second measurement instruction by the node to instruct the destination proxy node to forward the second measurement instruction to the destination detection node;

The step 803 is specifically: the control node receives the first result forwarded by the source proxy node, where the first result is sent by the source detection node to the source proxy node.

Optionally, the control node receives the second result sent by the destination detection node, specifically: the control node receives the second result forwarded by the destination proxy node, where the second result is sent by the destination proxy node. sent by the destination probe node to the destination proxy node.

optional,

The control node receives the first alarm sent by the source detection node, specifically: the control node receives the first alarm forwarded by the source proxy node, where the first alarm is sent by the source detection node to the source agent node;

The control node receives the second alarm sent by the destination detection node, specifically: the control node receives the second alarm forwarded by the destination proxy node, where the second alarm is sent by the destination detection node to the destination proxy node.

Optionally, the source proxy node and the destination proxy node are the same proxy node;

Before the 802, the method further includes:

obtaining, by the control node, a first route from the source proxy node to the source detection node and a second route from the source detection node to the source proxy node, and sending the first route to the source proxy node, Sending the second route to the source detection node, where the first route is used by the source proxy node to forward the first measurement instruction to the source detection node, and the second route is used for the source detection node the node sends the first result to the source proxy node;

The control node acquires a third route from the destination proxy node to the destination detection node, and sends the third route to the destination proxy node, where the third route is used by the destination proxy node to send the destination proxy node to the destination proxy node. The probe node forwards the second measurement instruction.

Optionally, the source proxy node is a process in the source physical server, and the destination proxy node is a process in the destination physical server;

Before the 802, the method further includes:

The control node sends first control information to the source proxy node and sends second control information to the destination proxy node, where the first control information is used to instruct the source proxy node to create in the source physical server a first virtual machine and the source detection node, the second control information is used to instruct the destination proxy node to create a second virtual machine and the destination detection node in the destination physical server, wherein the source detection node A node is a process in the first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the source physical server, and the destination detection node is the second virtual machine A process in the machine, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server;

The control node designates a first port on the source virtual switch for the source detection node and a second port on the destination virtual switch for the destination detection node, and the source detection node can pass the first port through the first port. A port communicates with the destination detection node, and the destination detection node can communicate with the source proxy node through the second port;

The control node establishes a virtual local area network including the first port and the second port; the virtual local area network is used to transmit the probe request message and the probe response message.

It should be noted that the control node in the embodiment of the present invention is equivalent to the control node 201 in the embodiment shown in FIG. 2 described above. For various specific implementations of the method executed by the control node in this embodiment, reference may be made to the detailed introduction of the embodiment shown in the foregoing FIG. 2 , and details are not repeated here.

In the technical solution of this embodiment, the user can flexibly designate the virtual client that needs to measure the network performance through the measurement request according to their own needs, and the control node can flexibly send the request to the measurement request when receiving the measurement request. The data center can flexibly measure and feed back the network performance between virtual clients according to user requirements. In addition, the user can also flexibly indicate other requirements such as the type of network performance parameters through the measurement request, and the control node can flexibly obtain measurement results that meet the user's requirements and feed it back to the user according to the measurement request. Therefore, the data center can flexibly meet the various needs of users for network performance measurement.

FIG. 9 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention. In this embodiment, the shown method, for example, may specifically include:

901. The source detection node receives a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client to The result of the performance of the link of the destination virtual client;

902. The source detection node sends a detection request message to a destination detection node based on the measurement instruction;

903. The source detection node receives the detection response packet sent by the destination detection node, and generates a result according to the detection request packet and the detection response packet, where the result is used to identify the source detection node to the destination detection node. The performance of the link of the destination detection node, the detection response message is sent by the destination detection node corresponding to the detection request message;

904. The source detection node sends the result to the control node, so that the control node forwards the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, both the measurement request and the measurement instruction carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier used to identify the source virtual client to the destination virtual client. The type of indicator to which the link performance result belongs.

Optionally, the 902 specifically includes:

The source detection node determines a transmission mode of the detection request message according to the type in the measurement instruction;

The source detection node sends the detection request message to the destination detection node according to the sending manner.

Optionally, the source detection node is a process in the source virtual client, and the destination detection node is a process in the destination virtual client.

Optionally, the source detection node is a process in a first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the physical server; the destination detection node is A process in a second virtual machine, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server.

Optionally, the method further includes:

the source probe node determines whether the result is in scope;

When the result does not belong to the range, the source detection node generates an alarm;

The source detection node sends the alarm to the control node so that the control node forwards the alarm.

optional,

The 901 is specifically: the source detection node receives the measurement instruction forwarded by the source proxy node, and the measurement instruction is sent by the control node to the source proxy node;

The 904 is specifically: the source detection node sends the result to the source proxy node, so that the source proxy node sends the result to the control node.

optional,

The source detection node sending the alarm to the control node is specifically: the source detection node sends the alarm to the source proxy node, so that the source proxy node forwards the alarm to the control node.

Optionally, the method further includes:

The source detection node verifies the measurement instruction, and sends the detection request message to the destination detection node when the verification is passed;

The measurement instruction is forwarded to the source detection node after being signed by the source proxy node.

It should be noted that the source detection node in the embodiment of the present invention is equivalent to the source detection node 202 in the embodiment shown in FIG. 2 described above. For various specific implementations of the method performed by the source detection node in this embodiment, reference may be made to the detailed introduction of the source detection node 202 in the embodiment shown in FIG. 2, and details are not repeated here.

In the technical solution of this embodiment, a detection node is deployed for the virtual client in the network system, wherein the port of the detection node and the port of the virtual client are both connected to the same virtual switch. Therefore, compared with the path for transmitting packets between physical routers, the path for transmitting packets between the detection nodes and the path for transmitting packets between virtual clients are closer. Therefore, through the transmission of packets between detection nodes The network performance measurements obtained in this paper are closer to the network performance between virtual clients. In addition, the measurement instruction received by the source detection node is issued by the control node according to the user requirements indicated by the measurement request. It can be seen that the user can flexibly specify the virtual client that needs to measure the network performance through the measurement request according to his own needs. Therefore, The data center can flexibly measure and feedback network performance between virtual clients according to user needs.

FIG. 10 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention. In this embodiment, the method may specifically include, for example:

1001. The destination detection node receives a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client to The result of the performance of the link of the destination virtual client;

1002. The destination detection node receives a detection request message sent by the source detection node;

1003. The destination detection node sends a detection response packet corresponding to the detection request packet to the source detection node based on the measurement instruction, where the detection request packet and the detection response packet are used by the source detection node. in generating a first result and sending it to the control node, the first result is used to identify the performance of the link between the source detection node and the destination detection node, and the first result is used by the control node for Forward;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request and the measurement instruction both carry the identifier of the source virtual client and the identifier of the destination virtual client, and the measurement request is used to instruct the control node to feed back for the identifier. The type of metric that the result of the performance of the link from the source virtual client to the destination virtual client belongs to.

Optionally, the source detection node is a process in the source virtual client, and the destination detection node is a process in the destination virtual client.

optional,

The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the source physical server;

The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual machine are two virtual machines located on the destination physical server.

Optionally, the method further includes:

generating, by the destination detection node, a second result according to the detection request message, where the second result is used to identify the performance of the link from the source detection node to the destination detection node;

The destination detection node sends the second result to the control node, so that the control node forwards the second result.

Optionally, also include:

the destination detection node determines whether the second result belongs to a range;

When the second result does not belong to the range, the destination detection node generates an alarm;

The destination detection node sends the alarm to the control node, so that the control node forwards the alarm.

Optionally, the 1001 is specifically: the destination detection node receives the measurement instruction forwarded by the destination proxy node, where the measurement instruction is sent by the control node to the destination proxy node.

Optionally, the destination detection node sends the second result to the control node, specifically: the destination detection node sends the result to the destination proxy node, so that the destination proxy node sends the control node to the control node. The node forwards the second result.

Optionally, the destination detection node sends the alarm to the control node, specifically: the destination detection node sends the alarm to the destination proxy node, so that the destination proxy node forwards the alarm to the control node the alert.

Optionally, the method further includes:

The destination detection node verifies the measurement instruction, and receives the detection request message sent by the source detection node when the verification is passed;

The measurement instruction is forwarded to the destination detection node after being signed by the destination proxy node.

It should be noted that, the destination detection node in the embodiment of the present invention is equivalent to the destination detection node 203 in the embodiment shown in the foregoing FIG. 2 . For various specific implementations of the method performed by the destination detection node in this embodiment, reference may be made to the detailed introduction of the destination detection node 203 in the embodiment shown in the foregoing FIG. 2 , and details are not repeated here.

In the technical solution of this embodiment, a detection node is deployed for the virtual client in the network system, wherein the port of the detection node and the port of the virtual client are both connected to the same virtual switch. Therefore, compared with the path for transmitting packets between physical routers, the path for transmitting packets between the detection nodes and the path for transmitting packets between virtual clients are closer. Therefore, through the transmission of packets between detection nodes The network performance measurements obtained in this paper are closer to the real network performance between virtual clients. In addition, the measurement instruction received by the destination detection node is issued by the control node according to the user requirements indicated by the user measurement request. It can be seen that the user can flexibly specify the virtual client that needs to measure the network performance through the measurement request according to his own requirements. Therefore, , the data center can flexibly measure and feedback network performance between virtual clients according to user needs.

FIG. 11 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention. In this embodiment, the method may specifically include, for example:

1101. The source proxy node receives a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client to The result of the performance of the link of the destination virtual client;

1102. The source proxy node forwards the measurement instruction to the source detection node, so as to instruct the source detection node to send a detection request message to the destination detection node, receive a detection response message sent by the destination detection node, and perform the measurement according to the A probe request message and a result of generating the probe response message, the result is used to identify the performance of the link from the source probe node to the destination probe node, and the probe response message corresponds to the destination probe node. Sent by the probe request message;

1103. The source proxy node receives the result sent by the source detection node;

1104. The source proxy node forwards the result to the control node, so that the control node forwards the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the method further includes:

receiving, by the source proxy node, an alarm sent by the source detection node, where the alarm is generated by the source detection node when it is determined that the result does not belong to the scope;

The source proxy node forwards the alarm to the control node so that the control node forwards the alarm.

Optionally, before the 1102, the method further includes:

The source proxy node signs the measurement instruction; the signed measurement instruction is used for verification by the source detection node and sends the detection request message to the destination detection node when the verification is passed.

Optionally, the source agent node is a process in the source physical server;

Before the source proxy node receives the measurement instruction, the method further includes:

receiving, by the source agent node, the control information sent by the control node;

The source proxy node creates a virtual machine and the source detection node in the source physical server based on the control information, wherein the source detection node is a process in the first virtual machine, and the virtual machine and the source virtual client are two virtual machines located on the source physical server.

It should be noted that the source proxy node in the embodiment of the present invention is equivalent to the source proxy node 301 in the embodiment shown in the foregoing FIG. 2 . For various specific implementations of the method performed by the source proxy node in this embodiment, reference may be made to the detailed introduction of the embodiment shown in FIG. 2 above, and details are not repeated here.

In the technical solution of this embodiment, the measurement instruction received by the source proxy node is issued by the control node according to the user requirement indicated by the measurement request, and the source proxy node needs to send the measurement instruction to the source detection node that meets the user requirement according to the instruction of the measurement instruction. From the measurement instruction, it can be seen that the user can flexibly specify the virtual client that needs to measure the network performance through the measurement request according to his own needs. Therefore, the data center can flexibly measure and feedback the network performance between the virtual clients according to the user's needs. In addition, for the network performance parameters measured by the source detection node, the source proxy node can return to the control node after sorting, statistics and analysis. The information interaction between the control node and the source detection node is forwarded by the source proxy node, and the source proxy node can ensure the security of the information interaction by means of signature. The source agent node can dynamically create the source probe node in the source physical server according to the control of the control node, so that the source probe node will not occupy the resources of the source physical server without measurement requirements.

FIG. 12 is a schematic flowchart of a method for measuring network performance in an embodiment of the present invention. In this embodiment, the method may specifically include, for example:

1201. The destination proxy node receives a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual client to the destination. The result of the performance of the link of the destination virtual client;

1202. The destination proxy node forwards the measurement instruction to the destination probe node, so as to instruct the destination probe node to receive the probe request message sent by the source probe node and send to the source probe node a message corresponding to the probe request message. A probe response message, where the probe request message and the probe response message are used by the source probe node to generate a first result and send it to the control node, where the first result is used to identify the source probe the performance of the link from the node to the destination detection node, and the first result is used for forwarding by the control node;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the method further includes:

The destination proxy node receives a second result sent by the destination detection node, where the second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the source detection node the performance of the link from the node to the destination probe node;

The destination proxy node forwards the second result to the control node so that the control node forwards the second result.

Optionally, the method further includes:

receiving, by the destination proxy node, an alarm sent by the destination detection node, where the alarm is generated by the destination detection node when it is determined that the second result does not belong to the scope;

The destination proxy node forwards the alarm to the control node, so that the control node forwards the alarm.

Optionally, before the 1202, it further includes:

The destination proxy node signs the measurement instruction; the signed measurement instruction is used for verification by the source detection node and sends the detection request message to the destination detection node when the verification is passed.

Optionally, the destination proxy node is a process in the destination physical server;

Before the 1201, the method further includes:

receiving, by the destination proxy node, the control information sent by the control node;

The destination proxy node creates a virtual machine and the destination detection node in the destination physical server based on the control information, wherein the source detection node is a process in the first virtual machine, and the virtual machine and the source virtual client are two virtual machines located on the source physical server.

It should be noted that, the destination proxy node in the embodiment of the present invention is equivalent to the destination proxy node 302 in the embodiment shown in the foregoing FIG. 2 . For various specific implementation manners of the method performed by the destination proxy node in this embodiment, reference may be made to the detailed introduction of the embodiment shown in FIG. 2, which is not repeated here.

In the technical solution of this embodiment, the measurement instruction received by the destination proxy node is issued by the control node according to the user demand indicated by the user measurement request, and the destination proxy node needs to detect the purpose that meets the user demand according to the instruction of the measurement instruction The node sends the measurement instruction. It can be seen that the user can flexibly specify the virtual client that needs to measure the network performance through the measurement request according to their own needs. Therefore, the data center can flexibly measure and feedback the network performance between the virtual clients according to the user's needs. In addition, for the network performance parameters measured by the destination detection node, the destination proxy node can return to the control node after sorting, statistics and analysis. The information interaction between the control node and the destination detection node is forwarded by the destination proxy node, and the destination proxy node can ensure the security of the information interaction by means of signature. The destination proxy node can dynamically create the destination detection node in the destination physical server according to the control node, so that the destination detection node will not occupy the resources of the destination physical server when there is no measurement requirement.

FIG. 13 is a schematic structural diagram of an apparatus for measuring network performance in an embodiment of the present invention. In this embodiment, the apparatus 1300 is deployed with a control node. For example, the apparatus 1300 may specifically include:

a first receiving unit 1301, configured to receive a measurement request, where the measurement request is used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client;

The first sending unit 1302 is configured to send a first measurement instruction to the source detection node and a second measurement instruction to the destination detection node, where the first measurement instruction is used to instruct the source detection node to send a detection request message to the destination detection node, Receive a probe response message corresponding to the probe request message and generate a first result according to the probe request message and the probe response message, where the first result is used to identify the source probe node to the destination The performance of the link of the detection node, and the second measurement instruction is used to instruct the destination detection node to send the detection response message corresponding to the detection request message to the source detection node;

A second receiving unit 1303, configured to receive the first result sent by the source detection node;

a first forwarding unit 1304, configured to forward the first result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

For example, the apparatus 1300 shown in FIG. 13 can be used to perform the method shown in FIG. 8 . Specifically, the first receiving unit 1301 may be configured to execute 801 in FIG. 8 . The first sending unit 1302 may be configured to execute 802 in FIG. 8 . The second receiving unit 1303 and the first feedback unit 1304 may be used to perform 803 in FIG. 8 .

Optionally, the measurement request, the first measurement instruction, and the second measurement instruction all carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier for identifying the source. The type of metric to which the result of the virtual guest-to-destination virtual guest link belongs.

Optionally, the apparatus 1300 further includes:

a third receiving unit, configured to receive the second result sent by the destination detection node, where the second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the performance of the link from the source probe node to the destination probe node;

A second forwarding unit, configured to forward the second result.

Optionally, the apparatus 1300 further includes:

a fourth receiving unit, configured to receive a first alarm sent by the source detection node, where the first alarm is generated and sent by the source detection node when it is determined that the first result does not belong to the first range;

a third forwarding unit, configured to forward the first alarm;

a fifth receiving unit, configured to receive a second alarm sent by the destination detection node, where the second alarm is generated and sent by the destination detection node when it is determined that the second does not belong to the second range;

a fourth forwarding unit, configured to forward the second alarm.

Optionally, the apparatus 1300 further includes:

a first determining unit, configured to determine whether the first result belongs to a third range;

a fifth forwarding unit, configured to generate and forward third network performance alarm information when the first result does not belong to the third range;

a second determination unit, configured to determine whether the second result belongs to the fourth range;

A sixth feedback unit, configured to generate and forward fourth network performance alarm information when the second result does not belong to the fourth range.

optional,

The first sending unit 1302 is specifically configured to send the first measurement instruction to the source proxy node, to instruct the source proxy node to forward the first measurement instruction to the source detection node, and to send the first measurement instruction to the destination proxy node sending the second measurement instruction to instruct the destination proxy node to forward the second measurement instruction to the destination detection node;

The second receiving unit 1303 is specifically configured to receive the first result forwarded by the source proxy node, where the first result is sent by the source detection node to the source proxy node.

Optionally, the third receiving unit is specifically configured to receive the second result forwarded by the destination proxy node, where the second result is sent by the destination detection node to the destination proxy node.

optional,

The fourth receiving unit is specifically configured to receive the first alarm forwarded by the source proxy node, where the first alarm is sent by the source detection node to the source proxy node;

The fifth receiving unit is specifically configured to receive the second alarm forwarded by the destination proxy node, where the second alarm is sent by the destination detection node to the destination proxy node.

Optionally, the source proxy node and the destination proxy node are the same proxy node;

The apparatus 1300 also includes:

a first obtaining unit, configured to obtain a first route from the source proxy node to the source detection node and send it to the source proxy node, where the first route is used by the source proxy node to send to the source detection node forward the first measurement instruction

a second obtaining unit, configured to obtain a second route from the source detection node to the source proxy node and send it to the source detection node, where the second route is used from the source detection node to the source proxy node sending the first result;

a third acquiring unit, configured to acquire a second route from the destination proxy node to the destination detection node and send it to the destination proxy node, where the second route is used by the destination proxy node to send the destination detection node Forward the second measurement instruction.

Optionally, the source proxy node is a process in the source physical server, and the destination proxy node is a process in the destination physical server;

The apparatus 1300 also includes:

a second sending unit, configured to send first control information to the source proxy node and send second control information to the destination proxy node, where the first control information is used to instruct the source proxy node in the source physical A first virtual machine and the source detection node are created in the server, and the second control information is used to instruct the destination proxy node to create a second virtual machine and the destination detection node in the destination physical server, wherein all the The source detection node is a process in the first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the source physical server, and the destination detection node is the A process in a second virtual machine, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server;

a specifying unit, configured to specify a first port on the source virtual switch for the source detection node and a second port on the destination virtual switch for the destination detection node, the source detection node can pass the The first port communicates with the destination detection node, and the destination detection node can communicate with the source proxy node through the second port;

The establishment unit is configured to establish a virtual local area network including the first port and the second port; the virtual local area network is configured to transmit the probe request message and the probe response message.

It should be noted that, the apparatus 1300 in the embodiment of the present invention is deployed with the control node 201 in the embodiment shown in FIG. 2 . For various specific implementations of the apparatus 1400 in this embodiment, reference may be made to the detailed introduction about the control node 201 in the embodiment shown in FIG. 2 , which will not be repeated here.

With the device 1300 in this embodiment, the user can flexibly designate the virtual client that needs to measure the network performance through the measurement request according to his own needs. When the first receiving unit 1301 receives the measurement request, the first sending unit 1302 can follow the The user demand indicated by the measurement request flexibly sends the measurement instruction to the corresponding probe node, the second receiving unit 1303 may receive the returned network performance parameter as the measurement result, and the first forwarding unit 1304 may feed back the measurement result to the user. Therefore, The data center can flexibly measure and feedback network performance between virtual clients according to user needs. In addition, the user can also flexibly indicate other requirements such as the type of network performance parameters through the measurement request, and the apparatus 1300 can flexibly obtain measurement results that meet the user's various requirements and feed it back to the user according to the measurement request. Therefore, the data center can flexibly meet the various needs of users for network performance measurement.

FIG. 14 is a schematic structural diagram of an apparatus for measuring network performance in an embodiment of the present invention. In this embodiment, an active detection node is deployed in the device 1400 . For example, the apparatus 1400 may specifically include:

The first receiving unit 1401 is configured to receive a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual Results of the performance of the link from the guest to the destination virtual guest;

a first sending unit 1402, configured to send a probe request message to the destination probe node based on the measurement instruction;

The second receiving unit 1403 is configured to receive the probe response message sent by the destination probe node;

A first generating unit 1404, configured to generate a result according to the probe request message and the probe response message, where the result is used to identify the performance of the link from the source probe node to the destination probe node, and the probe response The message is sent by the destination detection node corresponding to the detection request message;

a second sending unit 1405, configured to send the result to the control node, so that the control node forwards the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

For example, the apparatus 1400 shown in FIG. 14 can be used to perform the method shown in FIG. 9 . Specifically, the first receiving unit 1401 may be configured to execute 901 in FIG. 9 . The first sending unit 1402 may be configured to execute 902 in FIG. 9 . The second receiving unit 1403 and the first generating unit 1404 may be used to perform 903 in FIG. 9 . The second sending unit 1405 may be configured to execute 904 in FIG. 9 .

Optionally, both the measurement request and the measurement instruction carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier used to identify the source virtual client to the destination virtual client. The type of indicator to which the link performance result belongs.

Optionally, the first sending unit 1402 is specifically configured to:

determining the sending mode of the probe request message according to the type in the measurement instruction;

According to the sending manner, the probe request message is sent to the destination probe node.

Optionally, the source detection node is a process in the source virtual client, and the destination detection node is a process in the destination virtual client.

optional,

The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the physical server;

The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server.

Optionally, the apparatus 1400 further includes:

a determination unit for determining whether the result belongs to a range;

a second generating unit, configured to generate an alarm when the result does not belong to the range;

A third sending unit, configured to send the alarm to the control node, so that the control node forwards the alarm.

optional,

The second receiving unit 1403 is specifically configured to receive the measurement instruction forwarded by the source proxy node, where the measurement instruction is sent by the control node to the source proxy node;

The second sending unit 1405 is specifically configured to send the result to the source proxy node, so that the source proxy node forwards the result to the control node.

Optionally, the third sending unit is specifically configured to send the alarm to the source proxy node, so that the source proxy node forwards the alarm to the control node.

Optionally, the apparatus 1400 further includes:

a verification unit, configured to verify the signature in the measurement instruction, and the measurement instruction is forwarded to the source detection node after being signed by the source agent node;

A triggering unit, configured to trigger the first sending unit 1402 when the verification is passed.

It should be noted that, the apparatus 1400 in the embodiment of the present invention is deployed with the source detection node 202 in the embodiment shown in FIG. 2 . For various specific implementation manners of the apparatus 1400 in this embodiment, reference may be made to the detailed introduction of the source detection node 202 in the embodiment shown in FIG. 2, which is not repeated here.

In the apparatus 1400 of this embodiment, a detection node is deployed for the virtual client in the network system, wherein the port of the detection node and the port of the virtual client are both connected to the same virtual switch. Therefore, compared with the path for transmitting packets between physical routers, the path for transmitting packets between the detection nodes and the path for transmitting packets between virtual clients are closer. Therefore, through the transmission of packets between detection nodes The network performance measurements obtained in this paper are closer to the network performance between virtual clients. In addition, the measurement instruction received by the first receiving unit 1401 is issued by the control node according to the user requirements indicated by the measurement request. It can be seen that the user can flexibly specify the virtual client that needs to measure the network performance through the measurement request according to his own requirements. Therefore, the data center can flexibly measure and feedback network performance between virtual clients according to user needs.

FIG. 15 is a schematic structural diagram of an apparatus for measuring network performance in an embodiment of the present invention. In this embodiment, the apparatus 1500 deploys a purposeful detection node. For example, the apparatus 1500 may specifically include:

The first receiving unit 1501 is configured to receive a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual Results of the performance of the link from the guest to the destination virtual guest;

The second receiving unit 1502 is configured to receive the probe request message sent by the source probe node;

Returning unit 1503, configured to send a probe response packet corresponding to the probe request packet to the source probe node based on the measurement instruction, where the probe request packet and the probe response packet are sent to the source probe node by the source probe node is used to generate and send the first result to the control node, where the first result is used to identify the performance of the link between the source detection node and the destination detection node, and the first result is used by the control node for forwarding ;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

For example, the apparatus 1500 shown in FIG. 15 can be used to perform the method shown in FIG. 10 . Specifically, the first receiving unit 1501 may be used to execute 1001 in FIG. 10 . The second receiving unit 1402 may be configured to perform 1002 in FIG. 10 . Return unit 1503 may be used to execute 1003 in FIG. 10 .

Optionally, the measurement request and the measurement instruction both carry the identifier of the source virtual client and the identifier of the destination virtual client, and the measurement request is used to instruct the control node to feed back for the identifier. The type of metric that the result of the performance of the link from the source virtual client to the destination virtual client belongs to.

Optionally, the source detection node is a process in the source virtual client, and the destination detection node is a process in the destination virtual client.

optional,

The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the source physical server;

The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual machine are two virtual machines located on the destination physical server.

Optionally, the apparatus 1500 further includes:

a first generating unit, configured to generate a second result according to the probe request message, where the second result is used to identify the performance of the link from the source probe node to the destination probe node;

A first sending unit, configured to send the second result to the control node, so that the control node forwards the second result.

Optionally, the apparatus 1500 further includes:

a determining unit, configured to determine whether the second result belongs to a range;

a second generating unit, configured to generate an alarm when the second result does not belong to the range;

The second sending unit is configured to send the alarm to the control node, so that the control node forwards the alarm.

Optionally, the first receiving unit 1501 is specifically configured to receive the measurement instruction forwarded by a destination proxy node, where the measurement instruction is sent by the control node to the destination proxy node.

Optionally, the first sending unit is specifically configured to send the second result to the destination proxy node, so that the destination proxy node forwards the second result to the control node.

Optionally, the second sending unit is specifically configured to send the alarm to the destination proxy node, so that the destination proxy node forwards the alarm to the control node.

Optionally, the apparatus 1500 further includes:

a verification unit, configured to verify the measurement instruction, the measurement instruction is forwarded to the destination detection node after being signed by the destination proxy node;

a triggering unit, configured to trigger the second receiving unit when the verification is passed.

It should be noted that, the apparatus 1500 in this embodiment of the present invention is deployed with the destination detection node 203 in the embodiment shown in FIG. 2 . For various specific implementations of the apparatus 1500 in this embodiment, reference may be made to the detailed introduction about the destination detection node 203 in the embodiment shown in FIG. 2, which is not repeated here.

In the apparatus 1500 of this embodiment, a detection node is deployed for the virtual client in the network system, wherein the port of the detection node and the port of the virtual client are both connected to the same virtual switch. Therefore, compared with the path for transmitting packets between physical routers, the path for transmitting packets between the detection nodes and the path for transmitting packets between virtual clients are closer. Therefore, through the transmission of packets between detection nodes The network performance measurements obtained in this paper are closer to the real network performance between virtual clients. In addition, the measurement instruction received by the first receiving unit 1501 is issued by the control node according to the user requirements indicated by the user measurement request. It can be seen that the user can flexibly specify the virtual client that needs to measure the network performance through the measurement request according to his own requirements. , so the data center can flexibly measure and feed back the network performance between virtual clients according to user needs.

FIG. 16 is a schematic structural diagram of an apparatus for measuring network performance in an embodiment of the present invention. In this embodiment, the apparatus 1600 is configured with an active proxy node, and the apparatus 1600 may specifically include:

The first receiving unit 1601 is configured to receive a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual Results of the performance of the link from the guest to the destination virtual guest;

The first forwarding unit 1602 is configured to forward the measurement instruction to the source detection node, so as to instruct the source detection node to send a detection request packet to the destination detection node, receive a detection response packet sent by the destination detection node, and A result is generated according to the probe request message and the probe response message, the result is used to identify the performance of the link between the source probe node and the destination probe node, and the probe response message is the destination probe node. Sent by the detection node corresponding to the detection request message;

The second receiving unit 1603 receives the result sent by the source detection node;

a second forwarding unit 1604, configured to forward the result to the control node, so that the control node forwards the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

For example, the apparatus 1600 shown in FIG. 16 can be used to perform the method shown in FIG. 11 . Specifically, the first receiving unit 1601 may be used to execute 1101 in FIG. 11 . The first forwarding unit 1602 may be used to perform 1102 in FIG. 11 . The second receiving unit 1603 may be used to execute 1103 in FIG. 11 . The second forwarding unit 1604 may be used to perform 1104 in FIG. 11 .

Optionally, the apparatus 1600 further includes:

a third receiving unit, configured to receive an alarm sent by the source detection node, where the alarm is generated by the source detection node when it is determined that the result does not belong to the range;

A third forwarding unit, configured to forward the alarm to the control node, so that the control node forwards the alarm.

Optionally, the apparatus 1600 further includes:

The signature unit is used to sign the measurement instruction before sending the measurement instruction to the source detection node; the signed measurement instruction is used for verification by the source detection node and is sent to the source detection node when the verification is passed. The destination detection node sends the detection request message.

Optionally, the source agent node is a process in the source physical server;

The apparatus 1600 also includes:

a fourth receiving unit, configured to receive the control information sent by the control node;

A creation unit, configured to create a virtual machine and the source detection node in the source physical server based on the control information before receiving the measurement instruction, wherein the source detection node is the first virtual machine A process in the virtual machine and the source virtual client are two virtual machines located on the source physical server.

It should be noted that the apparatus 1600 in this embodiment of the present invention is deployed with the source proxy node 301 in the embodiment shown in FIG. 2 . For various specific implementation manners of the apparatus 1600 in this embodiment, reference may be made to the detailed introduction on the source proxy node 301 in the embodiment shown in FIG. 2, which is not repeated here.

In the apparatus 1600 of this embodiment, the measurement instruction received by the first receiving unit 1601 is issued by the control node according to the user's requirement indicated by the measurement request, and the first sending unit 1602 needs to send the measurement instruction to the user's requirement according to the instruction of the measurement instruction. The source detection node sends the measurement instruction. It can be seen that the user can flexibly specify the virtual client that needs to measure the network performance through the measurement request according to their own needs. Therefore, the data center can flexibly measure and feedback the network between the virtual clients according to the user's needs. performance. In addition, for the network performance parameters measured by the source detection node, the apparatus 1600 may return to the control node via the second sending unit 1604 after sorting, statistics and analysis. The information interaction between the control node and the source detection node is forwarded by the source proxy node, and the source proxy node can ensure the security of the information interaction by means of signature. The apparatus 1600 may dynamically create a source detection node in the source physical server according to the control of the control node, so that the source detection node will not occupy the resources of the source physical server when there is no measurement requirement.

FIG. 17 is a schematic structural diagram of an apparatus for measuring network performance in an embodiment of the present invention. In this embodiment, the apparatus 1700 is deployed with a destination proxy node, for example, the apparatus 1700 may specifically include:

The first receiving unit 1701 is configured to receive a measurement instruction sent by a control node, where the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back for identifying the source virtual Results of the performance of the link from the guest to the destination virtual guest;

The first forwarding unit 1702 is configured to forward the measurement instruction to the destination detection node, so as to instruct the destination detection node to receive the detection request message sent by the source detection node and send the corresponding detection request message to the source detection node The probe request packet and the probe response packet are used by the source detection node to generate a first result and send it to the control node, where the first result is used to identify the source the performance of the link between the detection node and the destination detection node, and the first result is used by the control node for forwarding;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

For example, the apparatus 1700 shown in FIG. 17 can be used to perform the method shown in FIG. 12 . Specifically, the first receiving unit 1701 may be used to execute 1201 in FIG. 12 . The first forwarding unit 1702 may be used to perform 1202 in FIG. 12 .

Optionally, the apparatus 1700 further includes:

A second receiving unit, configured to receive a second result sent by the destination detection node, where the second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the the performance of the link from the source probe node to the destination probe node;

A second forwarding unit, configured to forward the second result to the control node, so that the control node forwards the second result.

Optionally, the apparatus 1700 further includes:

a third receiving unit, configured to receive an alarm sent by the destination detection node, where the alarm is generated by the destination detection node when it is determined that the second result does not belong to the range;

A third forwarding unit, configured to forward the alarm to the control node, so that the control node forwards the alarm.

Optionally, the apparatus 1700 further includes:

a signature unit, configured to sign the measurement instruction before sending the measurement instruction to the destination detection node; the signed measurement instruction is used for verification by the source detection node and is sent to the destination if the verification is passed The detection node sends the detection request message.

Optionally, the destination proxy node is a process in the destination physical server;

The apparatus 1700 also includes:

a fourth receiving unit, configured to receive the control information sent by the control node;

A creation unit, configured to create a virtual machine and the destination detection node in the destination physical server based on the control information, wherein the source detection node is a process in the first virtual machine, and the virtual machine and the source virtual client are two virtual machines located on the source physical server.

It should be noted that, the device 1700 in this embodiment of the present invention is deployed with the destination proxy node 302 in the embodiment shown in FIG. 2 . For various specific implementations of the apparatus 1700 in this embodiment, reference may be made to the detailed introduction on the destination proxy node 302 in the embodiment shown in FIG. 2, which is not repeated here.

In the device 1700 of this embodiment, the measurement instruction received by the first receiving unit 1701 is issued by the control node according to the user requirement indicated by the measurement request, and the first forwarding unit 1702 needs to follow the instruction of the measurement instruction to meet the user requirement The purpose of the detection node is to send measurement instructions. It can be seen that the user can flexibly specify the virtual client that needs to measure the network performance through the measurement request according to their own needs. Therefore, the data center can flexibly measure and feedback the virtual client network performance. In addition, the device 1700 may return to the control node after sorting, counting and analyzing the measurement results of the network performance by the target detection node. The information interaction between the control node and the destination detection node is forwarded through the device 1700, and the signature unit can ensure the security of the information interaction by means of a signature. The apparatus 1700 may dynamically create the destination detection node in the destination physical server according to the control node, so that the destination detection node will not occupy the resources of the destination physical server when there is no measurement requirement.

FIG. 18 is a schematic structural diagram of a physical server in an embodiment of the present invention. In this embodiment, the physical server 1800 is deployed with the control node 201 in the embodiment shown in FIG. 2 , and can be used to execute the method in the embodiment shown in FIG. 8 . The physical server 1800 includes: a processor 1801 , a memory 1802 , a network interface 1803 , and a bus system 1804 .

The bus system 1804 is used to couple various hardware components of the physical server 1800 together.

The network interface 1803 is used to implement the communication connection between the physical server 1800 and at least one other network element, and may use the Internet, a wide area network, a local network, a metropolitan area network, or the like.

The memory 1802 is used to store program instructions and data.

The processor 1801 is configured to read the instructions and data stored in the memory 1802, and perform the following operations:

receiving a measurement request, the measurement request being used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client;

Send a first measurement instruction to the source detection node and send a second measurement instruction to the destination detection node, where the first measurement instruction is used to instruct the source detection node to send a detection request message to the destination detection node and receive the corresponding detection request message. and generate a first result according to the probe request message and the probe response message, where the first result is used to identify the performance of the link from the source probe node to the destination probe node, The second measurement instruction is used to instruct the destination detection node to send the detection response message corresponding to the detection request message to the source detection node;

receiving the first result sent by the source detection node, and forwarding the first result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request, the first measurement instruction, and the second measurement instruction all carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier for identifying the source. The type of metric to which the result of the virtual guest-to-destination virtual guest link belongs.

Optionally, the processor 1801 may also perform the following operations:

receiving the second result sent by the destination detection node, and forwarding the second result;

The second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the performance of the link from the source detection node to the destination detection node.

Optionally, the processor 1801 may also perform the following operations:

receiving a first alarm sent by the source detection node, and forwarding the first alarm;

receiving a second alarm sent by the destination detection node, and forwarding the second alarm;

The first alarm is generated and sent by the source detection node when it determines that the first result does not belong to the first range, and the second alarm is generated by the destination detection node when it determines that the second result does not belong to the first range. Generated and sent when belonging to the second range.

Optionally, the processor 1801 may also perform the following operations:

determining whether the first result falls within a third range;

When the first result does not belong to the third range, generate a third alarm and forward it;

determining whether the second result falls within a fourth range;

When the second result does not belong to the fourth range, a fourth alarm is generated and forwarded.

Optionally, in order to send the first measurement instruction and the second measurement instruction, the processor 1801 may perform the following operations:

sending the first measurement instruction to the source proxy node to instruct the source proxy node to forward the first measurement instruction to the source detection node;

Sending the second measurement instruction to the destination proxy node to instruct the destination proxy node to forward the second measurement instruction to the destination detection node.

Optionally, in order to receive the first result, the processor 1801 may perform the following operations:

The first result forwarded by the source proxy node is received, where the first result is sent by the source detection node to the source proxy node.

Optionally, in order to receive the second result, the processor 1801 may perform the following operations:

Receive the second result forwarded by the destination proxy node, where the second result is sent by the destination detection node to the destination proxy node.

Optionally, in order to receive the first alarm, the processor 1801 may perform the following operations:

receiving the first alarm forwarded by the source proxy node, where the first alarm is sent to the source proxy node by the source detection node;

Optionally, in order to receive the second alarm, the processor 1801 may perform the following operations:

Receive the second alarm forwarded by the destination proxy node, where the second alarm is sent by the destination detection node to the destination proxy node.

Optionally, the source proxy node and the destination proxy node may be the same proxy node;

Before sending the first measurement instruction and the second measurement instruction, the processor 1801 may further perform the following operations:

Obtain a first route from the source proxy node to the source probe node and a second route from the source probe node to the source proxy node, send the first route to the source proxy node, and send the source proxy node to the source proxy node. The probe node sends the second route, where the first route is used by the source proxy node to forward the first measurement instruction to the source probe node, and the second route is used by the source probe node to send the first measurement instruction to the source probe node. the source agent node sends the first result;

Obtain the third route from the destination proxy node to the destination detection node, and send the third route to the destination proxy node, where the third route is used by the destination proxy node to forward the information to the destination detection node. the second measurement command.

Optionally, the source proxy node may be a process in the source physical server, and the destination proxy node may be a process in the destination physical server;

Before sending the first measurement instruction and the second measurement instruction, the processor 1801 may perform the following operations:

Sending first control information to the source proxy node and sending second control information to the destination proxy node, where the first control information is used to instruct the source proxy node to create a first virtual machine in the source physical server and the source detection node, the second control information is used to instruct the destination proxy node to create a second virtual machine and the destination detection node in the destination physical server, wherein the source detection node is the A process in a first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the source physical server, and the destination detection node is one of the second virtual machines process, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server;

A first port on the source virtual switch is specified for the source detection node and a second port on the destination virtual switch is specified for the destination detection node, and the source detection node can communicate with the destination virtual switch through the first port. communicating with the destination detection node, and the destination detection node can communicate with the source proxy node through the second port;

A virtual local area network including the first port and the second port is established; the virtual local area network is used to transmit the probe request message and the probe response message.

FIG. 19 is a schematic structural diagram of a physical server in an embodiment of the present invention. In this embodiment, the physical server 1900 is deployed with the source detection node 202 in the embodiment shown in FIG. 2 , which can be used to execute the method in the embodiment shown in FIG. 9 . The physical server 1900 includes: a processor 1901 , a memory 1902 , a network interface 1903 , and a bus system 1904 .

The bus system 1904 is used to couple various hardware components of the physical server 1900 together.

The network interface 1903 is used to implement the communication connection between the physical server 1900 and at least one other network element, and may use the Internet, a wide area network, a local network, a metropolitan area network, or the like.

The memory 1902 is used to store program instructions and data.

The processor 1901, for reading the instructions and data stored in the memory 1902, performs the following operations:

Receive a measurement instruction sent by the control node, the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back the information used to identify the source virtual client to the destination virtual client. the result of the performance of the link;

Send a probe request message to the destination probe node based on the measurement instruction;

Receive a probe response message sent by the destination probe node, and generate a result according to the probe request message and the probe response message, where the result is used to identify the link between the source probe node and the destination probe node. performance, the probe response message is sent by the destination probe node corresponding to the probe request message;

sending the result to the control node for the control node to forward the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, both the measurement request and the measurement instruction carry the identifier of the source virtual client, the identifier of the destination virtual client, and the identifier used to identify the source virtual client to the destination virtual client. The type of indicator to which the link performance result belongs.

Optionally, in order to send the probe request message, the processor 1901 may perform the following operations:

determining the sending mode of the probe request message according to the type in the measurement instruction;

The source detection node sends the detection request message to the destination detection node according to the sending manner.

Optionally, the source detection node is a process in the source virtual client, and the destination detection node is a process in the destination virtual client.

Optionally, the source detection node is a process in a first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the physical server; the destination detection node is A process in a second virtual machine, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server.

Optionally, the processor 1901 may also perform the following operations:

determine whether the result is in scope;

when the result does not belong to the range, generating an alarm;

The alarm is sent to the control node for the control node to forward the alarm.

Optionally, in order to receive the measurement instruction, the processor 1901 may perform the following operations:

The measurement instruction forwarded by the source agent node is received, and the measurement instruction is sent by the control node to the source agent node.

Optionally, in order to send the result, the processor 1901 may perform the following operations:

The results are sent to the source proxy node for the source proxy node to send the results to the control node.

Optionally, in order to send the alarm, the processor 1901 may perform the following operations:

The alert is sent to the source proxy node so that the source proxy node forwards the alert to the control node.

Optionally, the processor 1901 may also perform the following operations:

Verifying the measurement instruction, and sending the detection request message to the destination detection node when the verification is passed;

The measurement instruction is forwarded to the source detection node after being signed by the source proxy node.

FIG. 20 is a schematic structural diagram of a physical server in an embodiment of the present invention. In this embodiment, the physical server 2000 is deployed with the destination detection node 203 in the embodiment shown in FIG. 2 , which can be used to execute the method in the embodiment shown in FIG. 10 . The physical server 2000 includes: a processor 2001 , a memory 2002 , a network interface 2003 , and a bus system 2004 .

The bus system 2004 is used to couple various hardware components of the physical server 2000 together.

The network interface 2003 is used to implement the communication connection between the physical server 2000 and at least one other network element, and may use the Internet, a wide area network, a local network, a metropolitan area network, or the like.

The memory 2002 is used to store program instructions and data.

The processor 2001 is used to read the instructions and data stored in the memory 2002, and perform the following operations:

Receive a measurement instruction sent by the control node, the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back the information used to identify the source virtual client to the destination virtual client. the result of the performance of the link;

Receive the probe request message sent by the source probe node;

Send a probe response packet corresponding to the probe request packet to the source probe node based on the measurement instruction, where the probe request packet and probe response packet are used by the source probe node to generate a first result and send it to the source probe node. Sent by the control node, the first result is used to identify the performance of the link between the source detection node and the destination detection node, and the first result is used by the control node for forwarding;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the measurement request and the measurement instruction both carry the identifier of the source virtual client and the identifier of the destination virtual client, and the measurement request is used to instruct the control node to feed back for the identifier. The type of metric that the result of the performance of the link from the source virtual client to the destination virtual client belongs to.

Optionally, the source detection node is a process in the source virtual client, and the destination detection node is a process in the destination virtual client.

Optionally, the source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the source physical server; the destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual machine are two virtual machines located on the destination physical server.

Optionally, the processor 2001 may also perform the following operations:

generating a second result according to the probe request message, where the second result is used to identify the performance of the link from the source probe node to the destination probe node;

The second result is sent to the control node for the control node to forward the second result.

Optionally, the processor 2001 may also perform the following operations:

determining whether the second result falls within a range;

when the second result does not belong to the range, generating an alarm;

The alarm is sent to the control node for the control node to forward the alarm.

Optionally, in order to receive the measurement instruction, the processor 2001 may perform the following operations:

Receive the measurement instruction forwarded by the destination proxy node, where the measurement instruction is sent by the control node to the destination proxy node.

Optionally, in order to send the second result, the processor 2001 may perform the following operations:

The result is sent to the destination proxy node so that the destination proxy node forwards the second result to the control node.

Optionally, in order to send the alarm, the processor 2001 may perform the following operations:

The alert is sent to the destination proxy node so that the destination proxy node forwards the alert to the control node.

Optionally, the processor 2001 may also perform the following operations:

Verifying the measurement instruction, and receiving the probe request message sent by the source probe node when the verification is passed;

The measurement instruction is forwarded to the destination detection node after being signed by the destination proxy node.

FIG. 21 is a schematic structural diagram of a physical server in an embodiment of the present invention. In this embodiment, the physical server 2100 is deployed with the source proxy node 301 in the embodiment shown in FIG. 2 , which can be used to execute the method in the embodiment shown in FIG. 11 . The physical server 2100 includes: a processor 2101 , a memory 2102 , a network interface 2103 , and a bus system 2104 .

The bus system 2104 is used to couple various hardware components of the physical server 2100 together.

The network interface 2103 is used to implement the communication connection between the physical server 2100 and at least one other network element, and may use the Internet, a wide area network, a local network, a metropolitan area network, or the like.

The memory 2102 is used to store program instructions and data.

The processor 2101 is used to read the instructions and data stored in the memory 2102, and perform the following operations:

Receive a measurement instruction sent by the control node, the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back the information used to identify the source virtual client to the destination virtual client. the result of the performance of the link;

Forward the measurement instruction to the source detection node to instruct the source detection node to send a detection request message to the destination detection node, receive a detection response message sent by the destination detection node, and perform a detection based on the detection request message and the A probe response packet generation result, where the result is used to identify the performance of the link between the source probe node and the destination probe node, and the probe response packet is sent by the destination probe node corresponding to the probe request packet of;

receiving the result sent by the source detection node;

forwarding the result to the control node for the control node to forward the result;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the processor 2100 may also perform the following operations:

receiving an alarm sent by the source detection node, where the alarm is generated by the source detection node when it is determined that the result does not belong to the scope;

The alarm is forwarded to the control node for the control node to forward the alarm.

Optionally, before sending the measurement instruction, the processor 2100 may further perform the following operations:

The measurement instruction is signed; the signed measurement instruction is used for verification by the source detection node, and the detection request message is sent to the destination detection node when the verification is passed.

Optionally, the source agent node is a process in the source physical server;

Before receiving the measurement instruction, the processor 2100 may further perform the following operations:

receiving control information sent by the control node;

A virtual machine and the source detection node are created in the source physical server based on the control information, wherein the source detection node is a process in the first virtual machine, and the virtual machine is associated with the source detection node. Virtual clients are two virtual machines located on the source physical server.

FIG. 22 is a schematic structural diagram of a physical server in an embodiment of the present invention. In this embodiment, the physical server 2200 is deployed with the destination proxy node 302 in the embodiment shown in FIG. 2 , which can be used to execute the method in the embodiment shown in FIG. 12 . The physical server 2200 includes: a processor 2201 , a memory 2202 , a network interface 2203 , and a bus system 2204 .

The bus system 2204 is used to couple various hardware components of the physical server 2200 together.

The network interface 2203 is used to implement the communication connection between the physical server 2200 and at least one other network element, and may use the Internet, a wide area network, a local network, a metropolitan area network, and the like.

The memory 2202 is used to store program instructions and data.

The processor 2201 is used to read the instructions and data stored in the memory 2202, and perform the following operations:

Receive a measurement instruction sent by the control node, the measurement instruction is sent when the control node receives a measurement request, and the measurement request is used to instruct the control node to feed back the information used to identify the source virtual client to the destination virtual client. the result of the performance of the link;

Forwarding the measurement instruction to the destination detection node to instruct the destination detection node to receive the detection request message sent by the source detection node and to send to the source detection node a detection response message corresponding to the detection request message, the The probe request message and the probe response message are used by the source probe node to generate a first result and send it to the control node, where the first result is used to identify the source probe node to the destination probe node The performance of the link, the first result is used by the control node for forwarding;

The source detection node, the source virtual client and the source virtual switch are located on a source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on a destination physical server, the The source physical server and the destination physical server are two physical servers, the source detection node is used to communicate with the destination detection node through the source virtual switch, and the destination detection node is used to communicate with the destination virtual switch through the destination virtual switch. communicating with the source detection node, the source virtual client for communicating with the destination virtual client through the source virtual switch, and the destination virtual client for communicating with the source virtual client through the destination virtual switch machine communication.

Optionally, the processor 2201 may also perform the following operations:

Receive a second result sent by the destination detection node, where the second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the source detection node to the destination Probe the performance of the node's link;

The second result is forwarded to the control node for the control node to forward the second result.

Optionally, the processor 2201 may also perform the following operations:

receiving an alarm sent by the destination detection node, where the alarm is generated by the destination detection node when it is determined that the second result does not belong to the scope;

The alarm is forwarded to the control node for the control node to forward the alarm.

Optionally, before sending the measurement instruction, the processor 2201 may further perform the following operations:

Sign the measurement instruction; the signed measurement instruction is used for verification by the source detection node and sends the detection request message to the destination detection node when the verification is passed.

Optionally, the destination proxy node is a process in the destination physical server;

Before receiving the measurement instruction, the processor 2201 may further perform the following operations:

receiving control information sent by the control node;

A virtual machine and the destination detection node are created in the destination physical server based on the control information, wherein the source detection node is a process in the first virtual machine, and the virtual machine is associated with the source detection node. Virtual clients are two virtual machines located on the source physical server.

"First" in names such as "first measurement instruction" and "first network performance parameter" mentioned in the embodiments of the present invention are only used for name identification, and do not represent first in order. The same rule applies to "second," "third," "fourth," and "fifth," etc.

It should be noted that, the processor in the embodiment of the present invention may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. These instructions can be implemented and controlled by a processor therein in cooperation with each other, and are used to execute the methods disclosed in the embodiments of the present invention. The above-mentioned processor may also be a general-purpose processor, a digital signal processor (Digital Signal Processing, DSP), an application specific integrated circuit (application specific integrated circuit), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components.

Wherein, the above-mentioned general-purpose processor may be a microprocessor or the processor may also be any conventional processor, decoder, and the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.

In addition, it should be noted that, in addition to the data bus, the bus system may also include a power bus, a control bus and a status signal bus. However, for the sake of clarity, in Figures 8 and 9, the various buses are marked as bus systems.

From the description of the above embodiments, those skilled in the art can clearly understand that all or part of the steps in the methods of the above embodiments can be implemented by means of software plus a general hardware platform. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art. The computer software products can be stored in storage media, such as ROM/RAM, magnetic disks, etc. , CD, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network communication device such as a media gateway) to perform the methods described in various embodiments or parts of embodiments of the present invention.

It should be noted that each embodiment in this specification is described in a progressive manner, and the same and similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. place. In particular, for the method embodiments and the device embodiments, since they are basically similar to the system embodiments, the descriptions are relatively simple, and reference may be made to some descriptions of the system embodiments for related parts. The device and system embodiments described above are only illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (36)

1. A system for measuring network performance, wherein the system comprises: The control node is configured to receive the measurement request, send a first measurement instruction to the source detection node, send a second measurement instruction to the destination detection node, receive the first result sent by the source detection node, and forward the first result, wherein, The measurement request is used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client; The source detection node is configured to receive the first measurement instruction sent by the control node, send a detection request message to the destination detection node based on the first measurement instruction, and receive the detection request sent by the destination detection node a response message, generating the first result according to the probe request message and the probe response message, and sending the first result to the control node, where the first result is used to identify the source the performance of the link from the probe node to the destination probe node; The destination detection node is configured to receive the second measurement instruction sent by the control node, receive the detection request message sent by the source detection node, and send a message to the source based on the second measurement instruction The detection node sends the detection response message corresponding to the detection request message; The source detection node, the source virtual client and the source virtual switch are located on the source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on the destination physical server, and the source physical server is connected to the source physical server. The destination physical servers are two physical servers, the source detection node is configured to communicate with the destination detection node through the source virtual switch, and the destination detection node is configured to communicate with the source detection node through the destination virtual switch node communication, the source virtual client is configured to communicate with the destination virtual client through the source virtual switch, and the destination virtual client is configured to communicate with the source virtual client through the destination virtual switch. 2. The system according to claim 1, wherein the measurement request, the first measurement instruction and the second measurement instruction all carry the identifier of the source virtual client, the destination virtual client The identifier of the client, and the type of the indicator to which the result for identifying the performance of the link from the source virtual client to the destination virtual client belongs. 3. The system according to claim 2, wherein the sending a probe request message to the destination probe node based on the first measurement instruction comprises: determining the sending mode of the probe request message according to the type in the first measurement instruction; According to the sending manner, the probe request message is sent to the destination probe node. 4. The system of claim 1, wherein: The source probe node is a process in the source virtual client, and the destination probe node is a process in the destination virtual client. 5. The system of claim 1, wherein: The source detection node is a process in a first virtual machine, and the first virtual machine and the source virtual client are two virtual machines located on the source physical server; The destination detection node is a process in a second virtual machine, and the second virtual machine and the destination virtual machine are two virtual machines located on the destination physical server. 6. The system of claim 1, wherein: The source detection node is further configured to determine whether the first result belongs to a first range, and to generate and send a first alarm to the control node when the first result does not belong to the first range; The control node is further configured to receive the first alarm sent by the source detection node, and forward the first alarm. 7. The system of claim 1, wherein: The destination detection node is further configured to generate a second result according to the detection request message, and send the second result to the control node, where the second result is used to identify the source detection node to the destination detection node. Describe the performance of the link of the destination detection node; The control node is further configured to receive the second result sent by the destination detection node, and forward the second result. 8. The system of claim 7, wherein: The destination detection node is further configured to determine whether the second result belongs to the second range, and to generate and send a second alarm to the control node when the second result does not belong to the second range; The control node is further configured to receive the second alarm sent by the destination detection node, and forward the second alarm. 9. The system according to any one of claims 1 to 8, further comprising: A source proxy node, configured to receive the first measurement instruction sent by the control node and forward the first measurement instruction to the source detection node, and receive the first result sent by the source detection node and forwarding the first result to the control node; A destination proxy node, configured to receive the second measurement instruction sent by the control node and forward the second measurement instruction to the destination detection node. 10. The system of claim 7 or 8, further comprising: A destination proxy node, configured to receive the second result sent by the destination detection node and forward the second result to the control node. 11. The system of claim 6, further comprising: a source proxy node, configured to receive the first alarm sent by the source detection node and forward the first alarm to the control node. 12. The system of claim 8, further comprising: A destination proxy node, configured to receive the second alarm sent by the destination detection node and forward the second alarm to the control node. 13. The system of claim 9, wherein: The source agent node is further configured to sign the first measurement instruction before forwarding the first measurement instruction; The source detection node is further configured to verify the signed first measurement instruction after receiving the first measurement instruction, and if the verification is successful, send the destination detection node the Probe request message; The destination proxy node is further configured to sign the second measurement instruction before forwarding the second measurement instruction; The destination detection node is further configured to verify the signed second measurement instruction after receiving the second measurement instruction, and in the case that the verification is successful, send the request to the destination based on the second measurement instruction. The source detection node sends the detection response message corresponding to the detection request message. 14. The system according to claim 9, wherein the source proxy node and the destination proxy node are the same proxy node; The control node is further configured to acquire a first route from the source proxy node to the source probe node and a second route from the source probe node to the source proxy node before sending the first measurement instruction , send the first route to the source proxy node, send the second route to the source probe node, and, before sending the second measurement instruction, obtain the destination proxy node to the destination probe node a third route between nodes, sending the third route to the destination proxy node; The first route is used by the source proxy node to send the first measurement instruction to the source detection node, and the second route is used by the source detection node to send the first measurement instruction to the source proxy node. As a result, the third route is used for the destination proxy node to send the second measurement instruction to the destination detection node. 15. The system according to claim 9, wherein the source proxy node is a process in the source physical server, and the destination proxy node is a process in the destination physical server. 16. The system of claim 15, wherein The control node is further configured to send first control information to the source proxy node and send second control information to the destination proxy node before sending the first measurement instruction and the second measurement instruction, so as to The source detection node specifies a first port on the source virtual switch and specifies a second port on the destination virtual switch for the destination detection node, and establishes a configuration including the first port and the second port the virtual local area network; the source detection node can communicate with the destination detection node through the first port, the destination detection node can communicate with the source detection node through the second port, and the virtual local area network is used for transmitting the probe request message and the probe response message; The source agent node is further configured to receive the first control information, and based on the first control information, create a first virtual machine in the source physical server and create the first virtual machine in the first virtual machine source detection node; The destination proxy node is further configured to receive the second control information, and based on the second control information, create a second virtual machine in the destination physical server and create the second virtual machine in the second virtual machine Destination detection node. 17. A method for measuring network performance, comprising: the control node receives a measurement request, the measurement request is used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client; The control node sends a first measurement instruction to the source detection node and sends a second measurement instruction to the destination detection node, where the first measurement instruction is used to instruct the source detection node to send a detection request message to the destination detection node, receive a corresponding A probe response message of a probe request message and generate a first result according to the probe request message and the probe response message, where the first result is used to identify the link from the source probe node to the destination probe node performance of the road, and the second measurement instruction is used to instruct the destination detection node to send the detection response message corresponding to the detection request message to the source detection node; receiving, by the control node, the first result sent by the source detection node, and forwarding the first result; The source detection node, the source virtual client and the source virtual switch are located on the source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on the destination physical server, and the source physical server is connected to the source physical server. The destination physical servers are two physical servers, the source detection node is configured to communicate with the destination detection node through the source virtual switch, and the destination detection node is configured to communicate with the source detection node through the destination virtual switch node communication, the source virtual client is configured to communicate with the destination virtual client through the source virtual switch, and the destination virtual client is configured to communicate with the source virtual client through the destination virtual switch. The method according to claim 17, wherein the measurement request, the first measurement instruction and the second measurement instruction all carry the identifier of the source virtual client, the destination virtual client The identifier of the client, and the type of the indicator to which the result used to identify the link from the source virtual client to the destination virtual client belongs. 19. The method of claim 17, further comprising: receiving, by the control node, the second result sent by the destination detection node, and forwarding the second result; The second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the performance of the link from the source detection node to the destination detection node. 20. The method of claim 19, further comprising: receiving, by the control node, a first alarm sent by the source detection node, and forwarding the first alarm; receiving, by the control node, the second alarm sent by the destination detection node, and forwarding the second alarm; The first alarm is generated and sent by the source detection node when it determines that the first result does not belong to the first range, and the second alarm is generated by the destination detection node when it determines that the second result does not belong to the first range. Generated and sent when belonging to the second range. 21. The method of claim 19, further comprising: the control node determines whether the first result belongs to a third range; When the first result does not belong to the third range, the control node generates a third alarm and forwards it; the control node determines whether the second result belongs to a fourth range; When the second result does not belong to the fourth range, the control node generates and forwards a fourth alarm. 22. The method according to any one of claims 17 to 21, wherein, Sending, by the control node, a first measurement instruction to the source detection node and a second measurement instruction to the destination detection node includes: the control node sending the first measurement instruction to a source proxy node to instruct the The source proxy node forwards the first measurement instruction to the source detection node; the control node sends the second measurement instruction to the destination proxy node to instruct the destination proxy node to forward the first measurement instruction to the destination detection node 2. Measurement instructions; The control node receives the first result sent by the source detection node, specifically: the control node receives the first result forwarded by the source proxy node, where the first result is sent by the source detection node to the source agent node. 23. The method of claim 22, wherein The control node receives the second result sent by the destination detection node, specifically: the control node receives the second result forwarded by the destination proxy node, where the second result is sent by the destination detection node to the destination proxy node. 24. The method of claim 23, wherein: The control node receives the first alarm sent by the source detection node, specifically: the control node receives the first alarm forwarded by the source proxy node, where the first alarm is sent by the source detection node to the source agent node; The control node receives the second alarm sent by the destination detection node, specifically: the control node receives the second alarm forwarded by the destination proxy node, where the second alarm is sent by the destination detection node to the destination proxy node. 25. The method according to claim 22, wherein the source proxy node and the destination proxy node are the same proxy node; Before the control node sends the first measurement instruction and the second measurement instruction, the method further includes: obtaining, by the control node, a first route from the source proxy node to the source detection node and a second route from the source detection node to the source proxy node, and sending the first route to the source proxy node, Sending the second route to the source detection node, where the first route is used by the source proxy node to forward the first measurement instruction to the source detection node, and the second route is used for the source detection node the node sends the first result to the source proxy node; The control node acquires a third route from the destination proxy node to the destination detection node, and sends the third route to the destination proxy node, where the third route is used by the destination proxy node to send the destination proxy node to the destination proxy node. The probe node forwards the second measurement instruction. 26. The method according to claim 22, wherein the source proxy node is a process in the source physical server, and the destination proxy node is a process in the destination physical server; Before the control node sends the first measurement instruction and the second measurement instruction, the method further includes: The control node sends first control information to the source proxy node and sends second control information to the destination proxy node, where the first control information is used to instruct the source proxy node to create in the source physical server a first virtual machine and the source detection node, the second control information is used to instruct the destination proxy node to create a second virtual machine and the destination detection node in the destination physical server, wherein the source detection node A node is a process in the first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the source physical server, and the destination detection node is the second virtual machine A process in the machine, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server; The control node designates a first port on the source virtual switch for the source detection node and a second port on the destination virtual switch for the destination detection node, and the source detection node can pass the first port through the first port. A port communicates with the destination detection node, and the destination detection node can communicate with the source proxy node through the second port; The control node establishes a virtual local area network including the first port and the second port; the virtual local area network is used to transmit the probe request message and the probe response message. 27. An apparatus for measuring network performance, wherein the apparatus is deployed with a control node, and the apparatus comprises: a first receiving unit, configured to receive a measurement request, where the measurement request is used to instruct the control node to feed back a result for identifying the performance of the link from the source virtual client to the destination virtual client; a first sending unit, configured to send a first measurement instruction to the source detection node and a second measurement instruction to the destination detection node, where the first measurement instruction is used to instruct the source detection node to send a detection request message to the destination detection node, receive a Corresponding to the probe response message of the probe request message and generating a first result according to the probe request message and the probe response message, the first result is used to identify the source probe node to the destination probe the performance of the link of the node, and the second measurement instruction is used to instruct the destination detection node to send the detection response message corresponding to the detection request message to the source detection node; a second receiving unit, configured to receive the first result sent by the source detection node; a first forwarding unit, configured to forward the first result; The source detection node, the source virtual client and the source virtual switch are located on the source physical server, the destination detection node, the destination virtual client and the destination virtual switch are located on the destination physical server, and the source physical server is connected to the source physical server. The destination physical servers are two physical servers, the source detection node is configured to communicate with the destination detection node through the source virtual switch, and the destination detection node is configured to communicate with the source detection node through the destination virtual switch node communication, the source virtual client is configured to communicate with the destination virtual client through the source virtual switch, and the destination virtual client is configured to communicate with the source virtual client through the destination virtual switch. 28. The apparatus according to claim 27, wherein the measurement request, the first measurement instruction and the second measurement instruction all carry the identifier of the source virtual client, the destination virtual client The identifier of the client, and the type of the indicator to which the result used to identify the link from the source virtual client to the destination virtual client belongs. 29. The apparatus of claim 27, further comprising: a third receiving unit, configured to receive a second result sent by the destination detection node, where the second result is generated by the destination detection node according to the detection request message, and the second result is used to identify the the performance of the link from the source probe node to the destination probe node; A second forwarding unit, configured to forward the second result. 30. The apparatus of claim 29, further comprising: a fourth receiving unit, configured to receive a first alarm sent by the source detection node, where the first alarm is generated and sent by the source detection node when it is determined that the first result does not belong to the first range; a third forwarding unit, configured to forward the first alarm; a fifth receiving unit, configured to receive a second alarm sent by the destination detection node, where the second alarm is generated and sent by the destination detection node when it is determined that the second result does not belong to the second range; a fourth forwarding unit, configured to forward the second alarm. 31. The apparatus of claim 29, further comprising: a first determining unit, configured to determine whether the first result belongs to a third range; a fifth forwarding unit, configured to generate and forward third network performance alarm information when the first result does not belong to the third range; a second determination unit, configured to determine whether the second result belongs to the fourth range; A sixth feedback unit, configured to generate and forward fourth network performance alarm information when the second result does not belong to the fourth range. 32. The device according to any one of claims 27 to 31, characterized in that: The first sending unit is specifically configured to send the first measurement instruction to the source proxy node, so as to instruct the source proxy node to forward the first measurement instruction to the source detection node, and send the first measurement instruction to the destination proxy node the second measurement instruction to instruct the destination proxy node to forward the second measurement instruction to the destination detection node; The second receiving unit is specifically configured to receive the first result forwarded by the source proxy node, where the first result is sent by the source detection node to the source proxy node. 33. The device according to any one of claims 29 to 31, characterized in that: The third receiving unit is specifically configured to receive the second result forwarded by the destination proxy node, where the second result is sent by the destination detection node to the destination proxy node. 34. The apparatus of claim 30, wherein The fourth receiving unit is specifically configured to receive the first alarm forwarded by the source proxy node, where the first alarm is sent by the source detection node to the source proxy node; The fifth receiving unit is specifically configured to receive the second alarm forwarded by the destination proxy node, where the second alarm is sent by the destination detection node to the destination proxy node. 35. The apparatus according to claim 32, wherein the source proxy node and the destination proxy node are the same proxy node; The device also includes: a first obtaining unit, configured to obtain a first route from the source proxy node to the source detection node and send it to the source proxy node, where the first route is used by the source proxy node to send to the source detection node forward the first measurement instruction a second obtaining unit, configured to obtain a second route from the source detection node to the source proxy node and send it to the source detection node, where the second route is used from the source detection node to the source proxy node sending the first result; a third acquiring unit, configured to acquire a second route from the destination proxy node to the destination detection node and send it to the destination proxy node, where the second route is used by the destination proxy node to send the destination detection node Forward the second measurement instruction. 36. The apparatus according to claim 32, wherein the source proxy node is a process in a source physical server, and the destination proxy node is a process in a destination physical server; The device also includes: a second sending unit, configured to send first control information to the source proxy node and send second control information to the destination proxy node, where the first control information is used to instruct the source proxy node in the source physical A first virtual machine and the source detection node are created in the server, and the second control information is used to instruct the destination proxy node to create a second virtual machine and the destination detection node in the destination physical server, wherein all the The source detection node is a process in the first virtual machine, the first virtual machine and the source virtual client are two virtual machines located on the source physical server, and the destination detection node is the A process in a second virtual machine, the second virtual machine and the destination virtual client are two virtual machines located on the destination physical server; a specifying unit, configured to specify a first port on the source virtual switch for the source detection node and a second port on the destination virtual switch for the destination detection node, the source detection node can pass the The first port communicates with the destination detection node, and the destination detection node can communicate with the source proxy node through the second port; a establishing unit, configured to establish a virtual local area network including the first port and the second port; The virtual local area network is used to transmit the probe request message and the probe response message.

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