CN107733801A - Receive and send the method and apparatus of message - Google Patents

Abstract

The present application relates to the communication field, and in particular to a method and device for receiving and sending messages in a network. The virtualized network function VNF device is connected to the backbone network through a router, and the VNF device includes a control unit, a first virtual machine VM and a second VM. Wherein, the first interface of the first VM, the second interface of the second VM and the third interface of the router have Internet Protocol IP addresses of the same network segment. The VNF device respectively establishes a routing protocol neighbor with the router interface through the first interface and the second interface, and then the VNF device advertises a route to the router through the routing protocol neighbor. Then, the VNF device sequentially receives the packets sent by the router through the first VM and the second VM. Through the above solution, the VNF device can sequentially receive messages sent by the router through multiple VM interfaces, and it is not necessary to recreate interfaces on the router when adding VM interfaces, which is beneficial to network management and maintenance.

Description

Method and device for receiving and sending messages

technical field

The present application relates to the communication field, and in particular to a method and device for receiving and sending messages in a network.

Background technique

If a user needs to access the Internet, first connect to the base station through a terminal device, and then the base station forwards the data to the router, and then the router forwards the user data to the virtualized network function (English: Virtualized Network Function, referred to as: VNF) device, and finally the VNF The device forwards the data to the network device accessed by the user.

When users access the Internet with a large amount of data, in order to improve data transmission efficiency, Open Shortest Path First (English: Open Shortest Path First, OSPF for short) neighbors are generally configured between the router and the VNF device to advertise load-sharing routes. Realize multi-path load balancing for packet forwarding between routers and VNF devices. However, in the prior art, in the process of realizing router forwarding message load sharing, every time an OSPF neighbor is added, an interface needs to be created on the router, and the Internet Protocol (English: Internet Protocol, referred to as: IP) address of the interface is configured, resulting in The router configuration workload increases, which is not conducive to network management and maintenance.

Contents of the invention

The embodiment of the present application provides a method and device for sending and receiving messages in the network, which is used to solve the router configuration amount caused by implementing multi-path load sharing for message forwarding between routers and VNF devices in the prior art increase, which in turn causes technical problems that make network management and maintenance difficult.

In the first aspect, the embodiment of the present application provides a method for receiving messages in a network, the network includes a VNF device, the VNF device is connected to the backbone network through a router, and the VNF device includes a first virtual machine (English: Virtual Machine, referred to as: VM), a second VM and a control unit, the first VM includes a first interface, the second VM includes a second interface, the router includes a third interface, the first interface, the The second interface and the third interface have IP addresses of the same network segment, and the method includes:

The control unit establishes a first routing protocol neighbor with the router through the first interface and the third interface;

The control unit establishes a second routing protocol neighbor with the router through the second interface and the third interface;

The control unit advertises routes to the router through the first routing protocol neighbor and the second routing protocol neighbor;

The first VM receives the first service packet sent by the router through the first interface;

The second VM receives the second service packet sent by the router through the second interface, and the first service packet and the second service packet are service packets corresponding to the route.

In the above solution, the first interface of the first VM, the second interface of the second VM, and the third interface of the router are set to have IP addresses of the same network segment, and the control unit of the VNF device can pass the first interface of the first VM and the third interface of the router. The second interfaces of the two VMs respectively establish routing protocol neighbors with the router. Then, the control unit sends the corresponding route to the router through the routing protocol neighbor, the router generates a routing table item according to the routing table item, and the router sends a message to the first interface and the second interface according to the routing table item, and the service report The text is received by the first interface and the second interface in turn. During this process, the router can establish two routing protocol neighbors with the VNF device through the same interface, which can not only realize the load sharing of the packets received by the VNF device, but also avoid configuring new interfaces on the router and reduce the workload of router configuration , which is conducive to the management and maintenance of the network.

In a possible implementation manner, the route advertised by the VNF device to the router includes:

The VNF device advertises to the router a route corresponding to the network device of the data center to which the VNF belongs.

In a possible implementation manner, after the VNF device receives the service packet sent by the router through the first interface and the second interface, the method further includes:

The VNF device sends the first service packet and the second service packet to the network device in the data center.

In the above solution, after the VNF device advertises the route of the data center network device it belongs to to the router, the router generates a routing table entry according to the above route, and then sends the packet to the corresponding network device according to the generated routing table entry, so that the user can control the data center network device. Access to the data of the network devices described above.

In a possible implementation manner, the first VM and the second VM are connected to the router through a Layer 2 switch, and the VNF device receives the router through the first interface and the second interface. The business messages sent include:

The VNF device receives the service packet from the router forwarded by the Layer 2 switch through the first interface and the second interface.

In the above solution, the VNF device establishes a connection with the router through a layer 2 switch, wherein the layer 2 switch can realize the connection between the router and the interfaces of multiple virtual machines in the VNF device through the same interface, which helps to realize the connection between the router and the VNF device. Multi-path load balancing for packet forwarding.

In a possible implementation manner, the routing protocol is an Open Shortest Path First OSPF protocol or an Intermediate System-to-Intermediate System (English: Intermediate System-to-Intermediate System, IS-IS for short) protocol.

In the above solution, the router uses the same interface to establish a connection with the first VM interface and the second VM interface of the VNF device, and the router and the VNF implement the packet forwarding between the router and the VNF device through the OSPF protocol or the IS-IS protocol. Multipath load sharing.

In a possible implementation manner, the VNF device further includes a third VM, and the third VM includes a fourth interface, and the fourth interface and the third interface have an IP address of the same network segment, and the Methods include:

The control unit establishes a third routing protocol neighbor with the router through the fourth interface and the third interface of the router;

The first control unit advertises a route to the router through the third routing protocol neighbor;

The VNF device receives the third service packet sent by the router through the fourth interface, where the third service packet is a service packet corresponding to the route.

In the above solution, when expanding the capacity of the VNF device and adding a third VM interface, configure the interface of the third VM and the router to have an IP address of the same network segment, and establish an IP address with the router through the third VM. Routing protocol neighbors. In this way, the path for the VNF device to receive packets can be expanded from two-way load sharing to three-way load sharing, which can not only realize the multi-path load sharing burden of message forwarding between the router and the VNF device through the same interface, but also avoid A new interface needs to be created on the router, which reduces the configuration workload of the router while improving message forwarding efficiency, and is beneficial to network management and maintenance.

The second aspect provides a method for sending messages in a network, the network includes a router and a VNF device, the VNF device is connected to the backbone network through the router, and the VNF device includes a first VM and a second machine VM, the first VM includes a first interface, the second VM includes a second interface, the router includes a third interface, the first interface, the second interface, and the third interface have the same network segment IP address, the method comprising:

The router establishes a first routing protocol neighbor with the VNF through the third interface and the first interface of the first VM;

The router establishes a second routing protocol neighbor with the VNF through the third interface and the second interface of the second VM;

The router receives the routes advertised by the first VM and the second VM through the first routing protocol neighbor and the second routing neighbor protocol, and generates a routing table entry, and the routing table entry includes two Routing, the destination addresses of the two routes are the same, the outgoing interfaces are the same, and the next hops are different;

The router sends the service packet to the VNF according to the routing entry.

In the above solution, the router establishes two routing protocol neighbor relationships with the VNF device through the same interface, and respectively receives the routes advertised by the VNF device through the first VM and the second VM through the routing protocol neighbors. Then the router generates a routing table item according to the route, wherein the routing table item generated by the router includes two routes with the same destination address but different next hops, and the router can simultaneously send the routing table to the first interface and the second routing table through its third interface. The two interfaces send packets to realize packet forwarding load sharing between the router and the VNF device, which improves the flexibility of the network.

In a possible implementation manner, the router is connected to the first VM and the second VM through a Layer 2 switch, and sending a service packet to the VNF by the router according to the routing entry includes:

The router sends the service packet to the VNF through the Layer 2 switch.

In the above solution, the router establishes connections with two VM interfaces respectively through a Layer 2 switch, wherein the Layer 2 switch can enable the router to establish connections with multiple VM interfaces in the VNF device through the same interface.

In a third aspect, a VNF device for receiving messages in a network is provided, the VNF device is connected to the backbone network through a router, and the VNF device includes: a first virtual machine VM, a second virtual machine VM and a control unit, so The first VM includes a first interface, the second VM includes a second interface, and the router includes a third interface, and the first interface, the second interface, and the third interface have IP addresses of the same network segment address.

The control unit is configured to establish a first routing protocol neighbor with the router through the first interface and the third interface, and establish a second routing protocol neighbor with the router through the second interface and the third interface. routing protocol neighbor;

The control unit is further configured to advertise routes to the router through the first routing protocol neighbor and the second routing protocol neighbor;

The first VM is configured to receive the first service packet sent by the router through the first interface;

The second VM is configured to receive a second service packet sent by the router through the second interface, the first service packet and the second service packet are service packets corresponding to the route .

In the above solution, if the first interface of the first VM, the second interface of the second VM, and the third interface of the router have IP addresses of the same network segment, the control unit in the VNF device can communicate with the router through the first interface. A first routing protocol neighbor is established, and a second routing protocol neighbor is established with the router through the second interface. The control unit publishes routes to the router respectively through the first routing protocol neighbor and the second routing protocol neighbor, the router generates a routing table entry according to the routing table entry, and the router uses the same interface to send the routing table entry to the first VM and the second VM of the VNF device. message. The VNF device receives packets sequentially through the first VM and the second VM, so that not only can the load sharing of the packets received by the VNF device be realized, but also there is no need to create a new interface on the router, which is beneficial to network management and maintenance.

In a possible implementation manner, the advertising of the route by the control unit to the router through the first routing protocol neighbor and the second routing protocol neighbor includes:

The control unit publishes the route corresponding to the network device of the data center to which the VNF belongs to the router through the first routing protocol neighbor and the second routing protocol neighbor.

In a possible implementation manner, the VNF device further includes:

A sending unit, configured to send the first service packet and the first service packet to the network device.

In a fourth aspect, the present application provides a router for sending messages in a network, the router is connected to a VNF device, the router includes a processing unit, a storage unit, and a transceiver unit, and the VNF device includes a first virtual machine VM and a A second VM, the first VM includes a first interface, the second VM includes a second interface, the router includes a third interface, the first interface, the second interface, and the third interface have Internet Protocol IP addresses of the same network segment, where,

The processing unit is configured to establish a first routing protocol neighbor with the VNF device through the third interface and the first interface of the first VM;

The processing unit is configured to establish a second routing protocol neighbor with the VNF device through the third interface and the second interface of the second VM;

The processing unit is also used to process the route received by the transceiver unit and generate a routing table entry, the routing table entry contains two routes, the destination address of the two routes is the same, the outgoing interface is the same, and the next hop different;

The storage unit is configured to store the router receiving the route received by the transceiver unit;

The transceiver unit is configured to receive the route sent by the VNF device through the first interface and the second interface;

The transceiver unit is further configured to send service packets to the VNF device according to the generated routing table entries.

In the above method, the router establishes a routing protocol neighbor relationship with the VNF through the processing unit, and then receives the route advertised by the VNF device. The storage unit stores the received route. The processing unit generates a routing table entry according to the route. The routing table entry contains two routes with the same destination address and the same outgoing interface but different next hops. The router can use the same interface to simultaneously send the first VM and the second VM Sending packets does not require routers to create new interfaces, which is beneficial to network management and maintenance.

In a fifth aspect, the present application provides another VNF device for receiving messages in a network, where the VNF device includes: a first VM, a second VM, a processor and a memory, the processor and the memory are connected through a bus, The processor is configured to execute codes in the memory, and when the codes are executed, the processor is made to execute the above first aspect and the method in any possible implementation manner of the first aspect. The VNF device receives the packet sent by the router through the first interface of the first VM and the second interface of the second VM.

In a sixth aspect, the present application provides another router for sending messages in a network, the router includes: a transceiver interface, a processor, and a memory, the processor and the memory are connected through a bus, and the processor is used to execute the The code in the memory, when the code is executed, causes the processor to execute the second aspect and the method in any possible implementation manner of the second aspect.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of a prior art scenario provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a possible application scenario provided by the embodiment of the present application;

FIG. 3 is a schematic flowchart of a method for forwarding messages in a network provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a possible application scenario provided by the embodiment of the present application;

FIG. 5 is a schematic diagram of another possible application scenario provided by the embodiment of the present application;

FIG. 6 is a schematic flowchart of a method for receiving a message in a network provided by an embodiment of the present application;

FIG. 7 is a schematic flowchart of a method for sending a message in a network provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a VNF device provided in an embodiment of the present application;

FIG. 9 is a schematic structural diagram of another VNF device provided in the embodiment of the present application;

FIG. 10 is a schematic structural diagram of a router provided in an embodiment of the present application;

FIG. 11 is a schematic structural diagram of another router provided in the embodiment of the present application.

detailed description

The application scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. Those skilled in the art know that with the evolution of the network architecture With the emergence of new business scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

In the embodiment of this application, "virtualized network function (English: virtualized network function)" refers to the control specific network function module running in one or more virtual machines at the top of the hardware network infrastructure equipment, including router function and switch function , server functions, cloud computing system functions, etc. VNFs are able to provide network functions found only in hardware, which requires a combination of applications, business processes and infrastructure software that can be integrated and tuned.

In the embodiment of the present application, "virtual machine (Virtual Machine)" refers to a complete computer system that is simulated by software and has complete hardware system functions and runs in a completely isolated environment. After entering the virtual system, all operations are carried out in this new independent virtual system, which can independently install and run software, save data, and have its own independent desktop without any impact on the real system.

In this embodiment of the present application, the "connection" relationship between devices or interfaces may also be replaced with a "communication" relationship.

In the embodiment of the present application, the terminal device may refer to user equipment (English: User Equipment, referred to as: UE), for example, the terminal device may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or connection other processing equipment to the wireless modem.

FIG. 1 is a schematic diagram of a prior art application scenario provided by an embodiment of the present application. The VNF device 101 includes a control unit 102 , a first VM 103 and a second VM 104 . Wherein the first VM 103 includes a first interface 106 , and the second VM 104 includes a second interface 107 . The router includes a third interface 109 and a fifth interface 111 , and the first interface 106 and the second interface 107 of the VNF device 101 are respectively connected to the third interface 109 and the fifth interface 111 of the router 108 .

The base station 105 provides wireless access services for terminal devices within a certain area. For example, when a user accesses the Internet through the terminal device 110, the terminal device 110 accesses the network in the area where the base station 105 provides wireless access services. The terminal device 110 sends the user data to be sent to the base station 105 in the form of a wireless signal, and then the base station 105 converts the wireless signal into a wired signal, and then the base station 105 sends the wired signal to the router 108, and the third interface 109 of the router 108 and the third interface 109 of the router 108 The five interfaces 111 are respectively connected to the first interface 106 of the first VM 103 and the second interface 1107 of the second VM 104, the router 108 forwards the message to the VNF device 101 through the third interface 109 and the fifth interface 111 respectively, and the VNF device respectively passes the The first interface 106 and the second interface 107 respectively receive packets sent by the router 108 .

Taking the terminal device 110 as a mobile phone as an example, the message forwarding scheme commonly used at present will be introduced below. When a user wants to access Internet data, the terminal device 110 accesses the network through the base station 105, and the base station 105 converts the wireless signal sent by the terminal device 110 into a wired signal. Base station 105 then sends the wired signal to router 108 . The router 108 is respectively connected to the first VM and the second VM on the VNF device through its two ports, wherein, the third interface 109 and the fifth interface 111 on the router 108 have IP addresses of different network segments, and the two interfaces on the router 108 Each port has an IP address of the same network segment as the respectively connected VM interface, that is, the third interface 109 of the router 108 and the first interface 106 of the first VM 103 have the IP address of the same network segment, and the fifth interface 111 of the router 108 and the first interface 106 of the first VM103 have the same network segment IP address. The second interface 107 of the second VM 104 has an IP address of the same network segment. The router 108 forwards the message through two paths connected to the VNF device. After the VNF device processes the message, it forwards the message to the target network device, and the target network device feeds the data back to the user's mobile terminal through the reverse path, and finally realizes the user's access to Internet data through the mobile terminal device.

The above scheme has the following problems:

When a large number of users use mobile terminal devices to access Internet data, the workload of the router to forward packets to the VNF device will increase accordingly. In order to alleviate the pressure on routers to forward packets, in the prior art, multiple VMs are generally configured on the VNF device, and packets sent by the router are received through multiple VM interfaces, so as to realize multi-path packet forwarding between the router and the VNF device. load sharing. However, every time a VM is added on the VNF device to establish a routing protocol neighbor with the router, the router needs to reconfigure an interface, which will increase the configuration workload of the router and is not conducive to network management and maintenance.

In order to solve the above technical problems, as shown in Figure 2, in the application scenario provided by the embodiment of the present application, configure the first interface 106 of the first VM103 and the second interface 107 of the second VM104 to have the same network segment IP address, and further set the router's The third interface 109 has an IP address of the same network segment as the first interface 106 and the second interface 107 .

The third interface 109 of the router 108 is connected to the first interface 106 of the first VM 103 and the second interface 107 of the second VM 104 through the second network, and the router 108 is connected to the first interface 106 and the VNF through its third interface 109 The device 101 establishes a first routing protocol neighbor, and the router 108 establishes a second routing protocol neighbor with the VNF device 101 through its third interface 109 and the second interface 107 . The router 108 publishes corresponding routes to the VNF device 101 through the first routing protocol neighbor and the second routing protocol neighbor respectively, and the router 108 generates a routing table entry according to the route. The VNF device sequentially receives the packets sent by the third interface 109 of the router 108 through the first interface 106 of the first VM 103 and the second interface 107 of the second VM 104 .

FIG. 3 shows a schematic flowchart of a method for forwarding packets in a network provided by an embodiment of the present application. The method can be applied to the application scenario shown in FIG. 2 . The router in the method shown in FIG. 3 may be the router 108 shown in FIG. 2 . The VNF device in the method shown in FIG. 3 may be the virtualized network function VNF device 101 shown in FIG. 2 . The VNF device is connected to the backbone network through a router, the VNF device includes a first VM, a second VM, and a control unit, the first VM includes a first interface, the second VM includes a second interface, and the router A third interface is included, and the first interface, the second interface and the third interface have IP addresses of the same network segment. The method comprises the steps of:

S301. The control unit establishes a first routing protocol neighbor with a router through a first interface of a first VM, and the control unit establishes a second routing protocol neighbor with the router through a second interface of a second VM.

S302. The control unit sends the route to the router through the first routing protocol neighbor and the second routing protocol neighbor.

S303. The router receives the route sent by the VNF device through the first routing protocol neighbor and the second routing protocol neighbor, and generates a routing table entry, where the routing table entry includes two routes with the same destination address and different next hops.

S304. The router sends the service packet to the VNF device according to the generated routing table entry.

S305. The first VM of the VNF device receives the first service packet sent by the router through the first interface, and the second VM of the VNF device receives the second service packet sent by the router through the second interface. The first service message and the second service message correspond to service messages sent by the router to the VNF device.

Optionally, the service message corresponding to the route is specifically: the destination address of the service message is the route.

Fig. 4 shows a schematic diagram of a possible application scenario provided by the embodiment of the present application. The route published by the VNF device 402 to the router 404 is a route corresponding to the network device 401 of the database center to which the VNF belongs. In this case, the VNF device 402 is a device of the data center 401 . The router 404 generates a routing table entry after receiving the route of the data center device 401 to which the VNF device 402 belongs. The router 404 forwards the service packet to the VNF device 402 according to the routing table entry. The VNF device 402 forwards the received service packet to the network device 403 of the data center. The network device 403 can perform traffic statistics and other operations on the service packets, so as to realize the user's access to the data center.

FIG. 5 is a schematic diagram of another possible application scenario provided by the embodiment of the present application. The VNF device 501 advertises routes to the router 502 . The route may be a route corresponding to the user-side network device 503 connected to the VNF device 501 . The router 502 generates a routing table after receiving the route, and forwards the message to the VNF device 501 according to the routing table entry. The VNF device 501 processes the message, and then forwards the message to the user-side network device 503, thereby realizing mutual access of users in the network.

Optionally, in an embodiment, the VNF device is connected to the router through a Layer 2 switch, and the VNF device receives the message from the Layer 2 switch forwarded by the Layer 2 switch through the first interface and the second interface. Service packets of the router. A Layer 2 switch can enable a router to establish connections with interfaces of multiple virtual machines in a VNF device through the same interface.

Optionally, the VNF device can also be connected to the router through a layer-2 network, the layer-2 network includes multiple layer-2 switches, and these multiple layer-2 switches are connected to each other, so that the router uses the same interface to communicate with multiple VMs The interface connection creates conditions to realize multi-path load sharing for packet forwarding between the VNF device and the router.

For example, the router is connected to the VNF device through a Layer 2 switch, so that the router can use the same interface to establish a connection with the first VM and the second VM in the VNF device, and the router is A packet can be sent to the first VM and the second VM simultaneously through an interface, and the VNF device can also receive service packets sequentially through the first interface of the first VM and the second interface of the second VM, so that router Multipath load balancing for packet forwarding between VNF devices.

Optionally, in an embodiment, the control unit respectively establishes a routing protocol neighbor with the router through the first interface and the second interface, and the routing protocol is an OSPF protocol or an IS-IS protocol.

For example, the VNF device advertises a route to the router through an OSPF protocol or an IS-IS protocol, and the router generates a routing table entry according to the route. The router sends service packets to the VNF device according to the routing table entry, and the VNF device sequentially receives the packets sent by the router through the first interface of the first VM and the second interface of the second VM, so that all The above-mentioned router uses the same interface to implement multi-path load sharing for message forwarding between the VNF device.

Optionally, in an embodiment, the VNF further includes a third VM, the third VM includes a fourth interface, and the fourth interface and the third interface of the router have an IP address of the same network segment . The control unit establishes a third routing protocol neighbor with the router through the fourth interface of the fourth VM. The control unit advertises a corresponding route to the router through a third routing protocol neighbor. The router generates a routing table item according to the route, and sends a service packet to the VNF device according to the routing table item.

For example, when expanding the capacity of the VNF device and adding the third VM, it is necessary to set the fourth interface of the third VM to be compatible with the first interface, the second interface, and the third interface. IP addresses with the same network segment. Then the router respectively establishes three routing protocol neighbors with the VNF device through the same interface, and then the VNF device can sequentially receive the services sent by the router through the first interface, the second interface and the fourth interface message. In addition, when it is necessary to improve the processing capability of the VNF device for service packets, it is only necessary to add a VM to the VNF device, and set the interface of the newly added VM to the first interface of the first VM, the second VM The second interface of the router and the third interface of the router have the IP addresses of the same network segment, so that the router can establish three routing protocol neighbors with the VNF device through one interface. The multi-path load sharing of message forwarding between the VNF device and the VNF device improves the ability of the VNF device to receive messages.

FIG. 6 shows a schematic flowchart of a method for receiving packets in a network provided by an embodiment of the present application. The method can be applied to the application scenario shown in FIG. 2 . The VNF device in the method shown in FIG. 6 may be the VNF device 101 shown in FIG. 2 , and the router mentioned in FIG. 6 may be the router 108 shown in FIG. 2 .

S601. The VNF device establishes a first routing protocol neighbor with the router through the first interface of the first VM, and establishes a second routing protocol neighbor with the router through the second interface of the second VM.

S602. The VNF device advertises routes to routers through the first routing protocol neighbor and the second routing protocol neighbor respectively.

S603. The VNF device sequentially receives service packets sent by the router through the first interface of the first VM and the second interface of the second VM.

In the above solution, when the first interface, the second interface and the third interface have IP addresses of the same network segment, the VNF device uses the first interface and the second interface respectively Establish a routing protocol neighbor with the router, so that the VNF device advertises a route to the router through the routing protocol neighbor. Then the router generates a routing table item according to the route, and the router uses the same interface to send a service message to the first interface and the second interface of the VNF device, and the message is sent by the first interface and the second interface of the VNF device The above-mentioned second interface sequentially receives, not only can realize the load sharing of the received message of the VNF device, but also can reduce the workload of the router configuring the new interface.

FIG. 7 is a schematic flowchart of a method for sending a message in a network provided by an embodiment of the present application. The method can be applied to the application scenario shown in FIG. 2 . The router in the method shown in FIG. 7 may be the router 108 shown in FIG. 2 . The VNF device in the method shown in FIG. 7 may be the VNF device 101 shown in FIG. 2 . The VNF device is connected to the backbone network through a router, the VNF device includes a first VM and a second VM, the first VM includes a first interface, the second VM includes a second interface, and the router includes a third interface, The first interface, the second interface and the third interface have IP addresses of the same network segment, and the method includes the following steps.

S701. The router establishes a first routing protocol neighbor with the VNF device through the third interface and the first interface of the first VM, and the router uses the third interface and the second interface of the second VM Establish a second routing protocol neighbor with the VNF device.

S702. The router respectively receives the routes advertised by the first VM and the second VM through the first routing protocol neighbor and the second routing protocol neighbor, and generates a routing table entry, and the routing table entry contains two routes , the destination addresses of the two routes are the same, the outgoing interfaces are different, and the next hops are different.

S703. The router sends the service packet to the VNF device through the routing entry.

Optionally, the router may send the service packet to the VNF device through a Layer 2 switch, where the router is connected to the first VM and the second VM through a Layer 2 switch.

In the above solution, the router interface sends messages to the first VM and the second VM of the VNF device through a layer-2 switch, and the layer-2 switch is the router using the same interface with the first VM of the first VM of the VNF device. Establishing a connection between the interface and the second interface of the second VM creates conditions for the router to use the same interface to send service packets to the first VM and the second VM of the VNF device.

FIG. 8 is a VNF device receiving packets in a network provided by an embodiment of the present application. The VNF device provided in this embodiment may be the VNF device in the embodiments shown in FIG. 2 to FIG. 7 . The VNF device 801 includes a first VM803, a second VM804, and a control unit 802, the first VM803 includes a first interface 806, and the second VM804 includes a second interface 805, wherein the first interface 806, the The second interface 805 and the router interface have IP addresses in the same network segment.

The control unit 802 is configured to establish a first routing protocol neighbor with the router through the first interface 806 and the router interface, and establish a second routing protocol neighbor with the router through the second interface 805 and the router interface .

The control unit 802 is further configured to advertise routes to the router through the first routing protocol neighbor and the second routing protocol neighbor.

The first VM 803 is configured to receive the first service packet sent by the router through the first interface 806 .

The second VM 804 is configured to receive the second service packet sent by the router through the second interface 805 . The first service message and the second service message are service messages corresponding to the route.

Optionally, the control unit 802 advertises the route corresponding to the network device of the data center to which the VNF device belongs to the router through the first routing protocol neighbor and the second routing protocol neighbor.

Optionally, the VNF device further includes a sending unit, configured to send the first service packet and the first service packet to the network device.

FIG. 9 is a schematic structural diagram of another VNF device provided by the embodiment of the present application. The VNF device 901 includes: a memory 901 , a processor 902 , a first VM 903 and a second VM 904 . The VNF device 901 provided in this embodiment may be the VNF device in the embodiments shown in FIG. 2 to FIG. 7 . The processor 902 and the memory 901 are connected through a bus, and the processor 902 is configured to execute codes in the memory 901 . The VNF device respectively receives the packets sent by the router through the first interface 905 of the first VM903 and the second interface 906 of the second VM904. The memory 901 is used to store the packets received by the first VM903 and the second VM904.

FIG. 10 is a schematic structural diagram of a router provided in an embodiment of the present application. The schematic structural diagram can be applied to the scenario shown in FIG. 2 . The router shown in FIG. 11 may be the router 108 in the embodiments shown in FIGS. 2 to 7 . The router 1008 is connected to the VNF device, and the router 1008 includes a processing unit 1001 , a storage unit 1002 and a transceiver unit 1003 . The router 1008 is connected to a VNF device, the VNF device includes a first virtual machine VM and a second VM, the first VM includes a first interface, the second VM includes a second interface, the first interface, The second interface and the third interface have IP addresses of the same network segment.

The processing unit 1001 is configured to establish a first routing protocol neighbor with the VNF device through its third interface and the first interface, and establish a first routing protocol neighbor with the VNF device through its third interface and the second interface. Two routing protocol neighbors. The processing unit 1001 is further configured to process the route received by the transceiver unit 1003, and generate a routing table entry. The routing table entry contains two routes. The destination addresses of the two routes are the same, and the outgoing interfaces are the same. Jump differently. The storage unit 1002 is configured to store the route received by the router and received by the transceiver unit. The transceiver unit 1003 is configured to receive routes sent by the VNF device through the first interface and the second interface, and is also configured to send service packets to the VNF device according to the generated routing table entries.

FIG. 11 is a schematic structural diagram of another router provided in the embodiment of the present application. The router 1108 includes a transceiver interface 1102, a processor 1101 and a memory 1103, wherein the processor 1101 and the memory 1103 are connected through a bus. The processor 1101 is configured to execute codes in the memory 1103 . The transceiving interface 1102 is used to receive routes advertised by the VNF device and send service packets to the VNF device. The memory 1103 is used to store the routes received by the router 1108 .

Each part of this specification is described in a progressive manner, and the same and similar parts of the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for relevant details, please refer to the description of the method embodiments.

It should be understood that in various embodiments of the present application, the serial numbers of the above-mentioned methods do not mean the order of execution, and the execution order of each method should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

Those of ordinary skill in the art can realize that the circuits and method steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the relationship between hardware and software Interchangeability. In the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Finally, it should be noted that the above description is only a preferred embodiment of the technical solution of the present application, and is not intended to limit the scope of protection of the present application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the scope of the application. If these modifications and variations of the application fall within the scope of the claims of the application and their equivalent technologies, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the application.

Claims (12)

1. the method for message being received in a kind of network, it is characterised in that the network includes virtualization network function VNF equipment, The VNF equipment is connected by router with backbone network, and the VNF equipment includes the first virtual machine VM, the 2nd VM and control is single Member, the first VM include first interface, and the 2nd VM includes second interface, and the router includes the 3rd interface, described First interface, the second interface and the 3rd interface have the iso-ip Internetworking protocol ISO-IP IP address of phase same network segment, methods described Including：

Described control unit establishes the first Routing Protocol by the first interface and the 3rd interface with the router Neighbours；

Described control unit establishes secondary route agreement by the second interface and the 3rd interface with the router Neighbours；

Described control unit is sent out by the first via from protocol neighbors and the secondary route protocol neighbors to the router Cloth is route；

First VM receives the first service message of the router transmission by the first interface；

2nd VM receives the second service message of the router transmission, the first business report by the second interface Literary and described second service message is the service message of the corresponding route.

2. according to the method for claim 1, it is characterised in that the route bag that the VNF equipment is issued to the router Include：

The VNF equipment issues the route of the network equipment of the data center belonging to the corresponding VNF to the router.

3. method according to claim 1 or 2, it is characterised in that pass through the first interface and institute in the VNF equipment After stating the service message that second interface receives the router transmission, methods described also includes：

The VNF equipment sets first service message and second service message to the network of the data center Preparation is sent.

4. according to the method described in claims 1 to 3 any claim, it is characterised in that the first VM and described second VM is connected by Layer 2 switch with the router, and the VNF equipment is connect by the first interface and the second interface Receiving the service message that the router is sent includes：

The VNF equipment by the first interface and the second interface receive that the Layer 2 switch forwards from described The service message of router.

5. according to the method described in Claims 1-4 any claim, it is characterised in that the Routing Protocol is open SPF ospf protocol or Intermediate System-to-Intermediate System Intermediate System to Intermediate System.

6. according to the method described in claim 1 to 5 any claim, it is characterised in that the VNF equipment also includes the 3rd VM, the 3rd VM include the 4th interface, and the 4th interface and the 3rd interface have the IP address of phase same network segment, described Method also includes：

Described control unit establishes the 3rd Routing Protocol by the 4th interface and the 3rd interface with the router Neighbours；

Described control unit issues the route by the 3rd Routing Protocol neighbours to the router；

The 3rd service message that 3rd VM is sent by router described in the 4th interface, the 3rd business report Text is the service message of the corresponding route.

7. the method for message is sent in a kind of network, it is characterised in that the network includes router and virtualization network function VNF equipment, the VNF equipment are connected by the router with backbone network, and the VNF equipment includes the first virtual machine VM, the Two VM and control unit, the first VM include first interface, and the 2nd VM includes second interface, and the router includes the Three interfaces, the first interface, the second interface and the 3rd interface are with having the iso-ip Internetworking protocol ISO-IP IP of phase same network segment Location, methods described include：

The router establishes the first via by the 3rd interface and the first VM first interface and the VNF By protocol neighbors；

The router establishes the second tunnel by the 3rd interface and the 2nd VM second interface and the VNF By protocol neighbors；

The router receives the VNF issues by the first via by protocol neighbors and the secondary route neighbor protocol Route, and route table items are generated, comprising two routes in the route table items, the destination address of two routes is identical, goes out Interface is identical, and next-hop is different；

The router sends service message according to the route table items to the VNF equipment.

8. according to the method for claim 7, it is characterised in that the router passes through Layer 2 switch and the first VM Connected with the 2nd VM, the service message that the router is sent according to the route table items to the VNF equipment includes：

The router sends the service message by the Layer 2 switch to the VNF equipment.

9. the virtualization network function VNF equipment of message is received in a kind of network, it is characterised in that the VNF equipment passes through road It is connected by device with backbone network, the VNF equipment includes：First virtual machine VM, the 2nd VM and control unit, the first VM are included First interface, the 2nd VM include second interface, and the router includes the 3rd interface, the first interface, described second Interface and the 3rd interface have the iso-ip Internetworking protocol ISO-IP IP address of phase same network segment, wherein,

Described control unit, for by the first interface and the 3rd interface and the router establish the first via by Protocol neighbors, and secondary route agreement neighbour is established with the router by the second interface and the 3rd interface Occupy；

Described control unit, it is additionally operable to by the first via from protocol neighbors and the secondary route protocol neighbors to the road Issued and route by device；

First VM, for receiving the first service message of the router transmission by the first interface；

2nd VM, for receiving the second service message of the router transmission by the second interface；Described first Service message and second service message are the service message of the corresponding route.

10. VNF equipment according to claim 9, it is characterised in that described control unit passes through first Routing Protocol Neighbours and the secondary route protocol neighbors include to router issue route：

Described control unit is sent out by the first via from protocol neighbors and the secondary route protocol neighbors to the router Cloth corresponds to the route of the network equipment of the data center belonging to the VNF.

11. VNF equipment according to claim 9, it is characterised in that the VNF equipment also includes：

Transmitting element, for first service message and first service message to be sent to the network equipment.

12. the router of message is sent in a kind of network, it is characterised in that the router is set with virtualization network function VNF Standby connection, the router include processing unit, memory cell and Transmit-Receive Unit, and the VNF equipment includes the first virtual machine VM First interface is included with the 2nd VM, the first VM, the 2nd VM includes second interface, and the router connects comprising the 3rd Mouthful, the first interface, the second interface and the 3rd interface have the iso-ip Internetworking protocol ISO-IP IP address of phase same network segment, its In,

The processing unit, for being set by the first interface of the 3rd interface and the first VM with the VNF It is standby to establish the first via by protocol neighbors；

The processing unit, for being set by the second interface of the 3rd interface and the 2nd VM with the VNF It is standby to establish secondary route protocol neighbors；

The processing unit, it is additionally operable to handle the route that Transmit-Receive Unit receives, and generates route table items, in the route table items Comprising two routes, the destination address of two routes is identical, and outgoing interface is identical, and next-hop is different；

The memory cell, the route for receiving the Transmit-Receive Unit for storing the router and receiving；

The Transmit-Receive Unit, the route sent for receiving the VNF equipment by the first interface and the second interface；

The Transmit-Receive Unit, it is additionally operable to send service message to the VNF equipment according to the route table items of generation.