CN103501240B - A kind of method of discovering device, apparatus and system - Google Patents

Abstract

Embodiments of the present invention provide a method, device and system for discovering devices, which relate to the field of network communication and are used to improve the working efficiency of the system. The method includes: sending a first SNMP registration request message to the manager with the first time as a cycle; the first SNMP registration request message carries device parameter information of the terminal device; the device parameter information of the terminal device Refers to the static information of the terminal device; receiving the first SNMP registration response message sent by the manager; after receiving the first SNMP registration response message, sending the message to the manager with a second time period A second SNMP registration request message; receiving a second SNMP registration response message sent by the manager. The embodiment of the present invention is applicable to a scenario where a manager manages terminal devices in network communication.

Description

A method, device and system for discovering equipment

technical field

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

Background technique

In the field of network communication, the operation and maintenance monitoring system is widely used. It can monitor and manage routers, switches, servers, computer terminals, storage devices, firewalls and other equipment in the network in real time, and automatically generate embedded hardware devices for network topology. The operation and maintenance monitoring system of the data center automatically discovers the managed devices. During the automatic discovery process, the system accesses all devices in the existing environment by active polling, and then uses SNMP (SimpleNetworkManagementProtocol, Simple Network Management Protocol) The GET Request command obtains the static information of the device.

In the process of realizing the discovery of devices by the above-mentioned operation and maintenance monitoring system, the inventors found that there are at least the following problems in the prior art: when the IP (Internet Protocol, a protocol for interconnection between networks) of the equipment managed by the operation and maintenance monitoring system has a large range of addresses, When the distribution is scattered and the number is large, it takes a long time for the system to complete a scan. Moreover, if the static information of the managed device is updated, the operation and maintenance monitoring system cannot perceive and update the corresponding information in time, thereby reducing the system's work efficiency.

Contents of the invention

Embodiments of the present invention provide a method, device and system for discovering devices, so as to improve the working efficiency of the system.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In the first aspect, the embodiment of the present invention provides a method for discovering devices, including: sending a first SNMP registration request message to the manager with a first time period; the first SNMP registration request message carries a terminal device The device parameter information of the terminal device; the device parameter information of the terminal device refers to the static information of the terminal device; the first SNMP registration response message sent by the manager is received; the first SNMP registration response message is received for the first time Received the registration response message sent by the manager; after receiving the first SNMP registration response message, send a second SNMP registration request message to the manager with a second time period; the second SNMP The device parameter information of the terminal device is carried in the registration request message; the second SNMP registration response message sent by the manager is received; wherein, the second SNMP registration response message is received except the first SNMP registration response message other than SNMP registration response messages.

In the first possible implementation of the first aspect, before sending the first SNMP registration request message to the manager with the first time as a period, it further includes: configuring interface parameters with the manager; The above interface parameters are used to establish a connection with the manager.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the value of the first time is smaller than the value of the second time.

With reference to the first aspect or any of the first to second possible implementations of the first aspect, in a third possible implementation of the first aspect, the second SNMP registration request message carries the terminal The device parameter information of the device includes: when the terminal device updates the device parameter information, the updated device parameter information of the terminal device is carried in the second SNMP registration request message.

With reference to the first aspect or any of the first to third possible implementations of the first aspect, in a fourth possible implementation of the first aspect, the first SNMP registration request message includes: a first simple network The management protocol extends the SNMP registration request message; the first SNMP registration request message is sent to the manager by taking the first time as a cycle: sending the first extended SNMP registration request message to the manager by taking the first time as a cycle; The first SNMP registration response message includes: a first extended SNMP registration response message; the receiving the first SNMP registration response message sent by the manager includes: receiving the first extended SNMP registration response message sent by the manager; the The second SNMP registration request message includes: a second extended SNMP registration request message; after receiving the first SNMP registration response message, sending the second SNMP registration request message to the manager with a second time period Including: after receiving the first extended SNMP registration response message, sending a second extended SNMP registration request message to the manager at a second time period; the second SNMP registration response message includes: a second extended An SNMP registration response message: receiving the second SNMP registration response message sent by the manager includes: receiving a second extended SNMP registration response message sent by the manager.

With reference to the first aspect or any of the first to third possible implementations of the first aspect, in a fifth possible implementation of the first aspect, the first SNMP registration request message includes: a first simple network The management protocol traps an SNMP Trap message; the sending of the first registration request message to the manager with the first time as a period includes: sending the first SNMP Trap message to the manager with the first time as a period; wherein, The first SNMP Trap message carries device parameter information of the terminal device; the first SNMP registration response message includes: a first SNMP inform message; the receiving the first SNMP registration response message sent by the manager includes: receiving the first SNMP inform message sent by the manager; the second SNMP registration request message includes: a second SNMP Trap message; after receiving the first SNMP registration response message, taking the second time as a cycle, Sending a second SNMP registration request message to the manager includes: after receiving the first SNMP registration response message, sending a second SNMP Trap message to the manager with a second period of time; wherein, the The second SNMP Trap message carries device parameter information of the terminal device; the second SNMP registration response message includes: a second SNMP inform message; the receiving the second SNMP registration response message sent by the manager includes: receiving the The second SNMP inform message sent by the manager.

With reference to the fifth possible implementation of the first aspect, in the sixth possible implementation of the first aspect, the device parameter information of the terminal device carried in the first SNMP Trap message includes: the first SNMP A new Trap type is added to identify the device parameter information of the terminal device in the Trap message; the device parameter information of the terminal device carried in the second SNMP Trap message includes: a new Trap is added in the second SNMP Trap message The type identifies device parameter information of the terminal device.

In the second aspect, an embodiment of the present invention provides a method for discovering devices, including: receiving an SNMP registration request message sent by a terminal device; the SNMP registration request message carries device parameter information of the terminal device; the terminal The device parameter information of the device refers to the static information of the terminal device; according to the device parameter information of the terminal device carried in the SNMP registration request message, determine whether the device parameter information of the terminal device has been registered; registering the device parameter information of the terminal device, registering the device parameter information of the terminal device, and sending a first SNMP registration response message to the terminal device.

In the first possible implementation manner of the second aspect, when it is determined that the device parameter information of the terminal device has been registered, the registered device parameter information of the terminal device and the first SNMP registration request message are detected Whether the device parameter information of the terminal device carried in the SNMP registration request information is the same; when it is detected that the device parameter information of the registered terminal device is completely the same as the device parameter information of the terminal device carried in the SNMP registration request information Next, send a second SNMP registration response message to the terminal device; if it is detected that the device parameter information of the registered terminal device is not exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information In this case, update the registered device parameter information of the terminal device according to the device parameter information of the terminal device in the SNMP registration request information; and send a second SNMP registration response message to the terminal device.

With reference to the second aspect or the first possible implementation of the second aspect, in the second possible implementation of the second aspect, the registration request message includes: a first SNMP registration request message or a second SNMP registration request message; the first SNMP registration request message is the SNMP registration request message sent by the terminal device to the manager with the first time period; the second SNMP registration request message is the terminal device with the second time period Periodic, SNMP registration request message sent to the manager.

With reference to the second possible implementation of the second aspect, in the third possible implementation of the second aspect, when the SNMP registration request message includes: a first SNMP registration request message, the first SNMP registration The request message includes: the first extended SNMP registration request message; in the case where the SNMP registration request message includes: the second SNMP registration request message, the second SNMP registration request message includes: the second extended SNMP registration request message; In the case where it is determined that the device parameter information of the terminal device has not been registered, the first SNMP registration response message includes: a first extended SNMP registration response message; when it is determined that the device parameter information of the terminal device has been registered In the case of , the second SNMP registration response message includes: a second extended SNMP registration response message.

With reference to the second possible implementation of the second aspect, in the fourth possible implementation of the second aspect, when the SNMP registration request message includes: a first SNMP registration request message, the first SNMP registration The request message includes: a first SNMP Trap message; the device parameter information of the terminal device is carried in the first SNMP Trap message; when the SNMP registration request message includes: a second SNMP registration request message, the second The SNMP registration request message includes: a second SNMP Trap message; the second SNMP Trap message carries device parameter information of the terminal device; in the case where it is determined that the device parameter information of the terminal device is not registered, the first An SNMP registration response message includes: a first SNMP inform message; in the case that it is determined that the device parameter information of the terminal device has been registered, the second SNMP registration response message includes: a second SNMP inform message.

With reference to the fourth possible implementation of the second aspect, in a fifth possible implementation of the second aspect, the device parameter information of the terminal device carried in the first SNMP Trap message includes: In the SNMPTrap message, a new Trap type is added to identify the device parameter information of the terminal device; the device parameter information of the terminal device carried in the second SNMP Trap message includes: in the second SNMP Trap message, a new The trap type identifies device parameter information of the terminal device.

In the third aspect, the embodiment of the present invention provides a terminal device, including: a control unit, a sending unit, and a receiving unit; the control unit is configured to receive the first SNMP registration response message when the receiving unit receives the first SNMP registration response message Before, triggering the sending unit to send the first SNMP registration request message to the manager with the first time as a cycle; the sending unit is used to send the first SNMP registration request message to the manager with the first time as a cycle; The first SNMP registration request message carries device parameter information of the terminal device; the device parameter information of the terminal device refers to static information of the terminal device; the receiving unit is configured to receive The first SNMP registration response message sent by the manager; the first SNMP registration response message is the first received SNMP registration response message sent by the manager; the control unit is also used in the receiving unit After receiving the first SNMP registration response message, the sending unit is triggered to take the second time as a period to send a second SNMP registration request message to the manager; the sending unit is also used to take the second time as a period , sending a second SNMP registration request message to the manager; the second SNMP registration request message carries the device parameter information of the terminal device; the receiving unit is also used to receive the second SNMP message sent by the manager A registration response message; the second SNMP registration response message is a received SNMP registration response message other than the first SNMP registration response message.

In a first possible implementation manner of the third aspect, the control unit is further configured to configure interface parameters with the manager; the interface parameters are used to establish a connection with the manager.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the value of the first time is smaller than the value of the second time.

With reference to the third aspect or the first to second possible implementation manners of the third aspect, in the third possible implementation manner of the third aspect, the second SNMP registration request message carries the The device parameter information includes: when the terminal device updates the device parameter information, the updated device parameter information of the terminal device is carried in the second SNMP registration request message.

In combination with the third aspect or the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect, the first SNMP registration request message includes: a first simple network management protocol The extended SNMP registration request message; the first SNMP registration response message includes: the first extended SNMP registration response message; the second SNMP registration request message includes: the second extended SNMP registration request message; the second SNMP registration response message Including: the second extended SNMP registration response message.

In combination with the third aspect or the first to third possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the first SNMP registration request message includes: a first simple network management protocol Trap SNMPTrap message; the first SNMP Trap message carries device parameter information of the terminal device; the second SNMP registration request message includes: a second SNMP Trap message; the second SNMP Trap message carries the terminal device's Device parameter information; the first SNMP registration response message includes: a first SNMP inform message; the second SNMP registration response message includes: a second SNMP inform message;

With reference to the fifth possible implementation of the third aspect, in the sixth possible implementation of the third aspect, the device parameter information of the terminal device carried in the first SNMP Trap message includes: the first SNMP A new Trap type is added to identify the device parameter information of the terminal device in the Trap message; the device parameter information of the terminal device carried in the second SNMP Trap message includes: a new Trap is added in the second SNMP Trap message The type identifies device parameter information of the terminal device.

In a fourth aspect, an embodiment of the present invention provides a manager, including: a receiving unit configured to receive an SNMP registration request message sent from a terminal device; the SNMP registration request message carries device parameter information of the terminal device; The device parameter information refers to the static information of the terminal device; the processing unit is configured to determine whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message The processing unit is further configured to register the device parameter information of the terminal device when it is determined that the device parameter information of the terminal device is not registered; and trigger the sending unit to send the first SNMP to the terminal device A registration response message; the sending unit is configured to send a first SNMP registration response message to the terminal device.

In a first possible implementation manner of the fourth aspect, the processing unit is further configured to, when it is determined that the device parameter information of the terminal device has been registered, detect the difference between the registered device parameter information of the terminal device and whether the device parameter information of the terminal device carried in the first SNMP registration request message is the same; When the device parameter information of the terminal device carried in the information is completely the same, the sending unit is triggered to send a second SNMP registration response message to the terminal device; If the device parameter information of the terminal device is not exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information, according to the device parameter information of the terminal device in the SNMP registration request information, updating the registered device parameter information of the terminal device; and triggering the sending unit to send a second SNMP registration response message to the terminal device; the sending unit is also used to send a second SNMP registration response message to the terminal device Respond to the message.

With reference to the fourth aspect or the first possible implementation of the fourth aspect, in the second possible implementation of the fourth aspect, the registration request message includes: a first SNMP registration request message or a second SNMP registration request message; the first SNMP registration request message is the SNMP registration request message sent by the terminal device to the manager with the first time period; the second SNMP registration request message is the terminal device with the second time period Periodic, SNMP registration request message sent to the manager.

With reference to the second possible implementation of the fourth aspect, in the third possible implementation of the fourth aspect, when the SNMP registration request message includes: a first SNMP registration request message, the first SNMP registration The request message includes: the first extended SNMP registration request message; in the case where the SNMP registration request message includes: the second SNMP registration request message, the second SNMP registration request message includes: the second extended SNMP registration request message; In the case where it is determined that the device parameter information of the terminal device has not been registered, the first SNMP registration response message includes: a first extended SNMP registration response message; when it is determined that the device parameter information of the terminal device has been registered In the case of , the second SNMP registration response message includes: a second extended SNMP registration response message.

With reference to the second possible implementation of the fourth aspect, in the fourth possible implementation of the fourth aspect, when the SNMP registration request message includes: a first SNMP registration request message, the first SNMP registration The request message includes: a first SNMP Trap message; the device parameter information of the terminal device is carried in the first SNMP Trap message; when the SNMP registration request message includes: a second SNMP registration request message, the second The SNMP registration request message includes: a second SNMP Trap message; the second SNMP Trap message carries device parameter information of the terminal device; in the case where it is determined that the device parameter information of the terminal device is not registered, the first An SNMP registration response message includes: a first SNMP inform message; in the case that it is determined that the device parameter information of the terminal device has been registered, the second SNMP registration response message includes: a second SNMP inform message.

With reference to the fourth possible implementation of the fourth aspect, in the fifth possible implementation of the fourth aspect, the device parameter information of the terminal device carried in the first SNMP Trap message includes: In the SNMPTrap message, a new Trap type is added to identify the device parameter information of the terminal device; the device parameter information of the terminal device carried in the second SNMP Trap message includes: in the second SNMP Trap message, a new The trap type identifies device parameter information of the terminal device.

In a fifth aspect, an embodiment of the present invention provides a terminal device, including: a processor, a transmitter, and a receiver; the processor is configured to, before the receiver receives the first SNMP registration response message, , triggering the sender to send the first SNMP registration request message to the manager with the first time as the cycle; the sender is used to send the first SNMP registration request message to the manager with the first time as the cycle; The device parameter information of the terminal device is carried in the first SNMP registration request message; the device parameter information of the terminal device refers to the static information of the terminal device; the receiver is used to receive the information from the manager The first SNMP registration response message sent; the first SNMP registration response message is the first received SNMP registration response message sent by the manager; After receiving the first SNMP registration response message, trigger the sender to send a second SNMP registration request message to the manager with the second time as the cycle; the sender is also used to take the second time as the cycle, Send a second SNMP registration request message to the manager; the second SNMP registration request message carries the device parameter information of the terminal device; the receiver is also used to receive the second SNMP registration message sent by the manager A response message; the second SNMP registration response message is a received SNMP registration response message other than the first SNMP registration response message.

In a first possible implementation manner of the fifth aspect, the processor is further configured to configure interface parameters with the manager; the interface parameters are used to establish a connection with the manager.

In a sixth aspect, an embodiment of the present invention provides a manager, including: a receiver configured to receive an SNMP registration request message sent from a terminal device; the SNMP registration request message carries device parameter information of the terminal device; The device parameter information refers to static information of the terminal device; a processor configured to determine whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message ; The processor is further configured to register the device parameter information of the terminal device when it is determined that the device parameter information of the terminal device is not registered; and trigger the sender to send the first SNMP to the terminal device A registration response message; the sender is configured to send a first SNMP registration response message to the terminal device.

In a first possible implementation manner of the sixth aspect, the processor is further configured to detect the registered device parameter information of the terminal device and all information carried in the first SNMP registration request message. Whether the device parameter information of the terminal device is the same; the processor is further configured to detect that the registered device parameter information of the terminal device is completely consistent with the device parameter information of the terminal device carried in the SNMP registration request information In the same situation, the sending unit is triggered to send a second SNMP registration response message to the terminal device; the processor is also configured to detect that the registered device parameter information of the terminal device is consistent with the SNMP registration request When the device parameter information of the terminal device carried in the information is not completely the same, update the registered device parameter information of the terminal device according to the device parameter information of the terminal device in the SNMP registration request information; And trigger the sending unit to send a second SNMP registration response message to the terminal device; the sender is further configured to send a second SNMP registration response message to the terminal device.

In a seventh aspect, an embodiment of the present invention provides a system for discovering devices, including: a terminal device and a manager; the terminal device is the terminal device described in the above embodiment; the manager is the terminal device described in the above embodiment described manager.

Embodiments of the present invention provide a method, device, and system for discovering devices. The terminal device actively sends the first SNMP registration response message to the manager at the first time period, and the manager sends the first SNMP registration response message according to the terminal The device information of the device is registered or updated, and a first SNMP registration response message is sent to the terminal device. After receiving the first SNMP registration response message, the terminal device starts to send a second SNMP registration response message at a second time period, The manager may update the device parameter information of the terminal device carried in the second SNMP registration response message, and send the second SNMP registration response message to the terminal device, thereby solving the problem that when the range of IP address range of the device managed by the manager is large and the distribution When the number is scattered and the number is large, the system needs a long time to complete a scan to register or update the static information of the terminal equipment, thereby improving the system work efficiency.

Description of drawings

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

FIG. 1 is a schematic flowchart of a method for discovering devices provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of another method for discovering devices provided by an embodiment of the present invention;

FIG. 3 is a schematic flowchart of another method for discovering devices provided by an embodiment of the present invention;

FIG. 4 is a schematic flowchart of another method for discovering devices provided by an embodiment of the present invention;

FIG. 5 is a functional schematic diagram of a terminal device provided by an embodiment of the present invention;

FIG. 6 is a functional schematic diagram of a manager provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a manager provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a system for discovering devices provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of the present invention provides a method for discovering devices, as shown in FIG. 1 , including:

101. Taking the first time as a period, send a first SNMP (Simple Network Management Protocol, Simple Network Management Protocol) registration request message to the manager.

Wherein, the first SNMP registration request message carries device parameter information of the terminal device, and the device parameter information of the terminal device refers to static information of the terminal device.

Specifically, after the communication channel is established between the terminal device and the manager, the terminal device actively sends the first SNMP registration request message to the manager with the preset first time as a period, so that the manager can register the terminal device. register.

Further, the device parameter information of the terminal device includes: device model, rated power, and management IP of the terminal device.

It should be noted that the device parameter information of the terminal device may also include other parameter information such as a manufacturer of the terminal device, which is not limited in the present invention.

It should be noted that the first time can be set in advance, the first time can be set to 15 seconds, the first time can also be set to 20 seconds, and the first time can also be set to other times, which is not limited by the present invention .

Further, there may be two implementation manners for the terminal device to send the first SNMP registration request message to the manager.

In a first implementation manner, the terminal device sends a first extended SNMP registration request message to the manager.

It should be noted that the first extended SNMP registration request message adds a message for requesting registration of device parameter information of the terminal device in the existing SNMP protocol.

In a second implementation manner, the terminal device adds a new Trap type to identify device parameter information of the terminal device in the first SNMP Trap message. At this time, the terminal device may send the first SNMP Trap (SimpleNetwork Management Protocol Trap, Simple Network Management Protocol Trap) message to the manager. That is to say, the terminal device can use the existing message, add or identify the device parameter information of the terminal device in the existing message, and send the existing message to the manager.

Exemplarily, seven kinds of trap numbers have been defined in the SNMP Trap message in the SNMP protocol at present, and the trap numbers are 0-6 respectively. Among them, when the Trap number is 0, the corresponding message type is coldstart (cold start), which means that the agent (agent) restarts, all management variables will be reset, and counters (counters) and gauges (meters) will be cleared ; When the trap number is 1, the corresponding message type is warmstart (warm start), which means that it starts automatically, and all management variables will not be initialized; when the trap number is 2, the corresponding message type is linkdown (communication link failure), which means The interface of the device becomes down (failed), and the number corresponding to the port is used to mark the specific port; when the Trap number is 3, the corresponding message type is linkup (communication link recovery), indicating that when the interface becomes up , the number corresponding to the port is used to mark the specific port; when the trap number is 4, the corresponding message type is authentication failure (authorization failure), which means that if someone tries to query the agent with a wrong community (community name), the trap will be triggered; When the Trap number is 5, the corresponding message type is egpneighborloss (EGP neighbor loss), indicating that the EGP neighbor status has become down; when the Trap number is 6, the corresponding message type is enterprisespecific (enterprise-defined), this type is enterprise Defined traps, SNMP manufacturers and users can define their own traps under the private enterprise (enterprise) branch. In addition to the above existing definition of the Trap number, a new Trap number may be added to identify the device parameter information of the terminal device. Assuming that the new trap number is defined as 8, when the trap number is 8, the corresponding message type is a registration request message, which indicates the device parameter information of the terminal device.

It should be noted that, when the terminal device sends the first SNMP registration request message to the manager at the first time period, the terminal device does not receive the SNMP registration response message returned by the manager.

Exemplarily, assuming that the first time is 15 seconds, after the terminal device sends the first first SNMP registration request message to the manager, after 15 seconds, the terminal device does not receive the SNMP registration response message returned by the manager, Then the terminal device then sends the second first SNMP registration request message to the manager.

102. Receive a first SNMP registration response message sent by the manager.

Wherein, the first SNMP registration response message is the first received SNMP registration response message sent by the manager.

Specifically, in step 101, if the first SNMP registration request message sent by the terminal device to the manager is the first extended SNMP registration request message, the terminal device may receive the first SNMP registration response message sent by the manager. Receive the first extended SNMP registration response message sent by the manager.

If the first SNMP registration request message sent by the terminal device to the manager is a first SNMP Trap message, the first SNMP registration response message received by the terminal manager may be SNMP inform (information).

103. After receiving the first SNMP registration response message, send a second SNMP registration request message to the manager with a second time period as a period.

Wherein, the second SNMP registration request message carries device parameter information of the terminal device.

Specifically, before the terminal device receives the first SNMP registration response message, the terminal device may send the first SNMP registration request message to the manager at the first time period, and when the terminal device receives the SNMP registration response message for the first time After the message, that is, after receiving the first SNMP registration response message, the terminal device sends the second SNMP registration request message to the manager at the second time period.

That is to say, after receiving the first SNMP registration response message, the terminal device may change the period of sending the SNMP registration request message, and send the SNMP registration request message to the manager.

Preferably, the value of the first time is smaller than the value of the second time.

At this time, after the terminal device sends the first SNMP registration request message to the manager at the first time period, when it receives the first SNMP registration response message, it changes to send the second SNMP registration request message to the manager at the second time period. Register request message. In this way, since the value of the second time is greater than the value of the first time, the frequency of sending the second SNMP registration response message may be automatically reduced.

Exemplarily, it is assumed that the first time is 15 seconds, and the second time is 60 seconds. The terminal device sends 3 first SNMP registration request messages to the manager at a period of 15 seconds, and receives the SNMP registration response message sent by the manager for the first time, that is, after receiving the first SNMP registration response message, the terminal device The second SNMP registration response message is sent to the manager at a period of 60 seconds.

Further, the second SNMP registration request message sent by the terminal device to the manager at the second time period may be the same as or different from the first SNMP registration request message sent to the manager by the terminal device at the first time period.

It should be noted that the device parameter information of the terminal device carried in the second SNMP registration request message includes: when the terminal device updates the device parameter information, the second SNMP registration request message carries all The updated device parameter information of the terminal device.

Specifically, since both the second SNMP registration request message and the first SNMP registration request message carry the device parameter information of the terminal device, after the terminal device receives the first SNMP registration response message, when the device parameter information of the terminal device When the information does not change, the second SNMP registration request message is the same as the first SNMP registration request message.

When the device parameter information of the terminal device changes, since the device parameter information of the terminal device carried in the second SNMP registration request message is the updated device parameter information, the second SNMP registration request message is the same as the first SNMP registration request message. The messages are different. At this time, the manager needs to update the stored device parameter information of the terminal device based on the device parameter information carried in the second SNMP registration request message.

Exemplarily, assuming that the device parameter information includes IP address information, if the IP address information of the terminal device changes after receiving the first SNMP registration response message, the device parameter information of the terminal device changes, that is, update the terminal device's Device parameter information. In this case, the updated device parameter information is carried in the second SNMP registration request message. The terminal device sends the second SNMP registration request message to the manager. At this time, the first SNMP registration request message is different from the second SNMP registration request message.

It should be noted that the second time can be set in advance, the second time can be set to 45 seconds, the second time can also be set to 60 seconds, and the second time can also be set to other time corresponding to the first time. Time, the present invention is not limited to this.

Further, there may be two implementation manners for the terminal device to send the second SNMP registration request message to the manager.

For details, reference may be made to the implementation manner in which the terminal device sends the first SNMP registration request message to the manager in step 101, which will not be repeated here.

104. Receive a second SNMP registration response message sent by the manager.

Wherein, the second SNMP registration response message is a received SNMP registration response message other than the first SNMP registration response message.

It should be noted that after the terminal device receives the first SNMP registration response message, all other registration response messages it receives are second SNMP registration response messages.

Specifically, the second SNMP registration response message received by the terminal device may be that when the terminal device sends the first SNMP registration request message to the manager with the first time as a period, after the manager receives the first SNMP registration request message, The SNMP registration response message returned to the terminal device.

Exemplarily, it is assumed that the first time is 15 seconds, and the second time is 60 seconds. The terminal device sends a first SNMP registration request message to the manager at a period of 15 seconds. If the terminal device does not receive the first SNMP registration response message after 15 seconds after sending the first first SNMP registration request message, the terminal device receives and sends the second first SNMP registration request message to the manager. If at this time, the terminal device receives the first SNMP registration response message. After sending the first SNMP registration response message, the manager receives the second first SNMP registration request message sent by the terminal device, and returns a registration response message to the terminal device. At this time, the SNMP registration response message received by the terminal device is the second SNMP registration response message.

The second SNMP registration response message received by the terminal device may also be that when the terminal device sends the second SNMP registration request message to the manager with the second time as a cycle, the manager sends the message to the terminal after receiving the second SNMP registration request message. The SNMP registration response message returned by the device.

Specifically, in step 101, if the first SNMP registration request message sent by the terminal device to the manager is the first extended SNMP registration request message, or in step 103, if the second SNMP registration request message sent by the terminal device to the manager is When the request message is the second extended SNMP registration request message, the second SNMP registration response message sent by the terminal device reception manager may include the second extended SNMP registration response message sent by the terminal device reception manager.

If the first SNMP registration request message sent by the terminal device to the manager is the first SNMP Trap message, or if the second SNMP registration request message sent by the terminal device to the manager is the second SNMP Trap message, then the terminal device receives The received second SNMP registration response message may include SNMP inform.

It should be noted that, in the embodiment of the present invention, before receiving the first SNMP registration response message, the terminal device sends the first SNMP registration request message to the manager at the first time period, and after receiving the first SNMP registration response message, After the response message, a second SNMP registration request message is sent to the manager at a second time period. When receiving the second SNMP registration response message, the terminal device does not change the sending period, but still sends the second SNMP registration request message to the manager at the second time period.

The embodiment of the present invention provides a method for discovering devices. After the terminal device establishes a communication channel with the manager, it starts to send the first SNMP registration request message at the first time period. When the terminal device receives the After the first SNMP registration response message is sent, the second SNMP registration response message is sent to the manager at the second time period, and the second SNMP registration response message is received. In this way, the terminal device can automatically send the device parameter information to the manager without the need for the manager to scan to obtain the device parameter information of the terminal device, thereby solving the problem of management when the IP address range of the device managed by the manager is large, the distribution is scattered, and the number is large. It takes a long time for the server to complete a scan, which improves the working efficiency of the system. Moreover, if the device parameter information of the terminal device is updated, the terminal device can send the updated device parameter information to the manager in time, so that the manager can update the device parameter information of the terminal device in time, further improving the working efficiency of the system .

An embodiment of the present invention provides a method for discovering devices, as shown in FIG. 2 , including:

201. Receive an SNMP registration request message sent by a terminal device.

Wherein, the SNMP registration request message carries device parameter information of the terminal device, and the device parameter information of the terminal device refers to static information of the terminal device.

Further, the device parameter information of the terminal device includes: device model, rated power, and management IP of the terminal device.

It should be noted that the device parameter information of the terminal device may also include other parameter information such as a manufacturer of the terminal device, which is not limited in the present invention.

Further, the SNMP registration request message received by the manager may have two forms.

The first form is the extended SNMP registration request message.

It should be noted that the first extended SNMP registration request message adds a message for requesting registration of device parameter information of the terminal device in the existing SNMP protocol.

The second form is SNMP Trap message.

Wherein, a new Trap type is added to the SNMP Trap message to identify the device parameter information of the terminal device. That is to say, the terminal device uses the existing message, adds or identifies the device parameter information of the terminal device in the existing message, and sends the existing message to the manager.

Further, the registration request message includes a first SNMP registration request message or a second SNMP registration request message.

Wherein, the first SNMP registration request message is an SNMP registration request message sent by the terminal device to the manager with the first time as a period, and the second SNMP registration request message is an SNMP registration request message sent by the terminal device at a second time period Periodic, SNMP registration request message sent to the manager.

Further, when the registration request message includes: a first SNMP registration request message, the first SNMP registration request message includes: a first extended SNMP registration request message.

When the registration request message includes: a second SNMP registration request message, the second SNMP registration request message includes: a second extended SNMP registration request message.

Alternatively, when the registration request message includes: a first SNMP registration request message, the first SNMP registration request message includes: a first SNMP Trap message.

Wherein, the first SNMP Trap message carries device parameter information of the terminal device.

Since a new Trap type is added in the SNMP Trap message to identify the device parameter information of the terminal device, the device parameter information of the terminal device carried in the first SNMP Trap message includes: in the first SNMPTrap message A new Trap type is added to identify the device parameter information of the terminal device.

In a case where the registration request message includes: a second SNMP registration request message, the second SNMP registration request message includes: a second SNMP Trap message.

Wherein, the second SNMP Trap message carries device parameter information of the terminal device.

Since a new Trap type is added to the SNMP Trap message to identify the device parameter information of the terminal device, the device parameter information of the terminal device carried in the second SNMP Trap message includes: in the second SNMPTrap message A new Trap type is added to identify the device parameter information of the terminal device.

202. Determine whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message.

Specifically, the manager can sequentially compare the device parameter information of the terminal device carried in the received SNMP registration request message with the stored device parameter information to determine the device parameter information of the terminal device sending the registration request message Is it already registered.

203. If it is determined that the device parameter information of the terminal device has not been registered, register the device parameter information of the terminal device, and send a first SNMP registration response message to the terminal device.

Specifically, if the manager compares the received parameter information of the terminal device with all the device parameter information stored in the manager in turn, the manager determines that no device parameter information of the terminal device is stored, that is, the manager does not If the device parameter information of the terminal device has been registered, the manager will record the device parameter information of the terminal device, that is, register the device parameter information of the terminal device, and send the first SNMP message to the terminal device after the registration is completed. Register response messages.

Specifically, in step 201, if the first SNMP registration request message received by the manager is the first extended SNMP registration request message, the first SNMP registration response message sent may include the first extended SNMP registration response message. If the first SNMP registration request message received by the manager is a first SNMP Trap message, the first SNMP registration response message sent by the manager may include an SNMP inform message.

The embodiment of the present invention provides a method for discovering devices. The manager receives the SNMP registration request message sent by the terminal device, and determines whether the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message. If Register if not registered yet. In this way, the manager can receive the device parameter information automatically sent by the terminal device, without the need for the manager to scan to obtain the device parameter information of the terminal device, and then solve the problem of management when the IP address range of the device managed by the manager is large, the distribution is scattered, and the number is large. It takes a long time for the server to complete a scan, which improves the working efficiency of the system.

An embodiment of the present invention provides a method for discovering devices, including:

301. Configure interface parameters between the terminal device and the manager.

Wherein, the interface parameter is used to establish a connection with the manager.

Specifically, interface parameters are set in the terminal device, and these parameters are used to establish a communication channel between the terminal device and the manager, and the channel is used exclusively for communication between the terminal of the device and the manager. The interface parameters are the management IP, the IP address of the terminal device, the port number, and other parameters needed to establish the channel. After the channel is established, all communication messages between the manager and the terminal equipment are transmitted on the channel.

302. The terminal device sends a first SNMP registration request message to the manager with the first time as a period. The manager receives a first SNMP registration request message.

Wherein, the first SNMP registration request message carries device parameter information of the terminal device. The device parameter information of the terminal device refers to static information of the terminal device. The first SNMP registration request message is a registration request message sent periodically by the terminal device at the first time.

Further, the device parameter information of the terminal device includes: device model, rated power, and management IP of the terminal device.

It should be noted that the device parameter information of the terminal device may also include other parameter information such as a manufacturer of the terminal device, which is not limited in the present invention.

Further, the first SNMP registration request message sent by the terminal device may have two forms.

The first form is the first extended SNMP registration request message.

It should be noted that the first extended SNMP registration request message adds a message for requesting registration of device parameter information of the terminal device in the existing SNMP protocol.

The second form is the first SNMP Trap message.

Wherein, a new Trap type is added to the first SNMP Trap message to identify device parameter information of the terminal device. That is to say, the terminal device uses the existing message, adds or identifies the device parameter information of the terminal device in the existing message, and sends the existing message to the manager.

Further, for the terminal device to send the first SNMP registration request message to the manager, reference may be made to step 101, which will not be repeated here. For the manager receiving the first SNMP registration request message, refer to step 201, which will not be repeated here.

303. The manager determines whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the first SNMP registration request message.

For details, reference may be made to step 202, which will not be repeated here.

It should be noted that the following steps are different depending on the results confirmed by the manager. If the manager determines that the device parameter information of the terminal device has not been registered, steps 304, 308-312 are performed, as shown in FIG. 3 . If the manager determines that the device parameter information of the terminal is registered, steps 305-312 are performed, as shown in FIG. 4 .

304. If the manager determines that it is not registered, register the device parameter information of the terminal device, and send a first SNMP registration response message to the terminal device.

Wherein, the first SNMP registration response message is the SNMP registration response message sent by the manager and received by the terminal device for the first time.

Specifically, when the manager determines that the device parameter information of the terminal device is not stored, that is, when the manager has not registered the device parameter information of the terminal device, the manager can store the received device parameter information of the terminal device, that is, to The device parameter information of the terminal device is registered. After the registration is completed, a first SNMP registration response message is sent to the terminal device. Reference may be made to step 203 .

Further, in step 302, if the first SNMP registration request message received by the manager is the first extended SNMP registration request message, the first SNMP registration response message sent may include the first extended SNMP registration response message. If the first SNMP registration request message received by the manager is a first SNMP Trap message, the first SNMP registration response message sent by the manager may include an SNMP inform message.

It should be noted that, when the terminal device receives the first SNMP registration response message sent by the manager, it may know that the manager has successfully registered the device parameter information of the terminal device.

305. When the manager determines that the device parameter information of the terminal device has been registered, detect the registered device parameter information of the terminal device and the device of the terminal device carried in the first SNMP registration request message Whether the parameter information is the same.

Specifically, after the manager has determined that the device parameter information of the terminal device carried in the first SNMP registration request message has been registered, it needs to determine that the device parameter information of the terminal device carried in the first SNMP registration request message is the same as the device parameter information carried by the manager. Whether the device parameter information of the registered terminal devices is the same. At this time, the manager can compare the device parameter information of the terminal device carried in the first SNMP registration request message with the device parameter information of the terminal device registered in the manager, so as to detect that the terminal device parameter information carried in the first SNMP registration request message Whether the device parameter information of the terminal device is the same as the device parameter information of the terminal device registered by the manager.

It should be noted that, according to different detection results, different steps are executed. If it is detected that the device parameter information of the terminal device carried in the first SNMP registration request message is the same as the device parameter information of the terminal device registered by the manager, step 307 is directly executed. If it is detected that the device parameter information of the terminal device carried in the first SNMP registration request message is different from the device parameter information of the terminal device registered by the manager, step 306 is executed.

306. When the manager detects that the registered device parameter information of the terminal device is not exactly the same as the device parameter information of the terminal device carried in the registration request information, according to the first SNMP registration request message, The device parameter information of the terminal device in the device update the registered device parameter information of the terminal device.

Specifically, when the terminal device updates the device parameter information, the first SNMP registration request message carries the updated device parameter information of the terminal device. After the manager receives the first SNMP registration request message and detects that the device parameter information of the terminal device carried in the first SNMP registration request message is different from the stored device parameter information of the terminal device, the manager may update the stored device parameter information. The device parameter information of the terminal device is updated.

Further, the manager may delete the stored device parameter information of the terminal device, and re-store the device parameter information of the terminal device carried in the first SNMP registration request message.

It should be noted that when the device parameter information of the terminal device carried in the first SNMP registration request message is different from the stored device parameter information of the terminal device, it means that the device parameter information of the terminal device has changed. The terminal device can add the device parameters of the terminal device to the device parameter information of the terminal device, and can also modify the information of some device parameters in the device parameter information of the terminal device. Of course, it can also modify the device parameters of the terminal device. Information, the present invention is not limited to this.

307. The manager sends a first SNMP registration response message to the terminal device. The terminal device receives the first SNMP registration response message.

Wherein, the second SNMP registration response message refers to the SNMP registration response message sent to the terminal device by the manager after receiving the SNMP registration request message and determining that the device parameter information of the terminal device has been registered.

It should be noted that the SNMP registration request message received by the manager includes: a first SNMP registration request message or a second SNMP registration request message.

Specifically, in step 302, if the first SNMP registration request message received by the manager is the first extended SNMP registration request message, the second SNMP registration response message sent by the manager may include the first extended SNMP registration response message. If the first SNMP registration request message received by the manager is the first SNMP Trap message, the second SNMP registration response message sent by the manager may include an SNMP inform message. For the terminal device receiving the second SNMP registration request message sent by the manager, refer to step 104, which will not be repeated here.

308. After receiving the first SNMP registration response message, the terminal device sends a second SNMP registration request message to the manager with a second time period as a period. The manager receives the second SNMP registration request message.

Wherein, the second SNMP registration request message carries device parameter information of the terminal device. The device parameter information of the terminal device refers to static information of the terminal device.

It should be noted that if the device parameter information of the terminal device carried in the second SNMP registration request message has not changed compared with the device parameter information of the terminal device carried in the first SNMP registration request message, then the second SNMP registration request message Same as the first SNMP registration request message. If the device parameter information of the terminal device carried in the second SNMP registration request message changes compared with the device parameter information of the terminal device carried in the first SNMP registration request message, the second SNMP registration request message and the first SNMP registration The request message is different.

Further, the device parameter information of the terminal device includes: device model, rated power, and management IP of the terminal device.

It should be noted that the device parameter information of the terminal device may also include other parameter information such as a manufacturer of the terminal device, which is not limited in the present invention.

It should be noted that the second SNMP registration request message is an SNMP registration request message sent by the terminal device at a second time period after receiving the first SNMP registration response message sent by the manager.

Specifically, after receiving the first SNMP registration response message, the terminal device may change the period for sending the registration request message, and send the SNMP registration request message to the manager.

Preferably, the value of the first time is smaller than the value of the second time.

At this time, after the terminal device sends the first SNMP registration request message to the manager at the first time period, when it receives the first SNMP registration response message, it changes to send the second SNMP registration request message to the manager at the second time period. Register request message. In this way, since the value of the second time is greater than the value of the first time, the frequency of sending the second SNMP registration response message may be automatically reduced.

Further, the second SNMP registration request message sent by the terminal device may have two forms.

The first form is the second extended SNMP registration request message.

It should be noted that the second extended SNMP registration request message is a newly defined message for requesting registration of device parameter information of the terminal device.

The second form is the second SNMP Trap message.

Wherein, a new trap type is added to the second SNMP Trap message to identify the device parameter information of the terminal device. That is to say, the terminal device uses the existing message, adds or identifies the device parameter information of the terminal device in the existing message, and sends the existing message to the manager.

Further, for the terminal device to send the second SNMP registration request message to the manager, reference may be made to step 103, which will not be repeated here. For the manager receiving the second SNMP registration request message, refer to step 201, which will not be repeated here.

309. The manager determines, according to the device parameter information of the terminal device carried in the second SNMP registration request message, that the device parameter information of the terminal device has been registered.

Specifically, since the manager has received the first SNMP registration request message sent by the terminal device before receiving the second SNMP registration request message, if the manager does not register the device parameter information of the terminal device at this time, the manager registers the first SNMP registration request message. The device parameter information of the terminal device carried in an SNMP registration request message. At this time, when the manager receives the second SNMP registration request message, the manager can determine that the device parameter information of the terminal device has been registered.

310. When the manager determines that the device parameter information of the terminal device has been registered, detect the registered device parameter information of the terminal device and the device of the terminal device carried in the second SNMP registration request message Whether the parameter information is the same.

Specifically, after the manager has determined that the device parameter information of the terminal device carried in the second SNMP registration request message has been registered, it needs to determine that the device parameter information of the terminal device carried in the second SNMP registration request message is the same as the device parameter information carried by the manager. Whether the device parameter information of the registered terminal devices is the same. At this time, the manager can compare the device parameter information of the terminal device carried in the second SNMP registration request message with the device parameter information of the terminal device registered in the manager, so as to detect that the terminal device parameter information carried in the second SNMP registration request message Whether the device parameter information of the terminal device is the same as the device parameter information of the terminal device registered by the manager.

It should be noted that, according to different detection results, different steps are executed. If it is detected that the device parameter information of the terminal device carried in the first SNMP registration request message is the same as the device parameter information of the terminal device registered by the manager, step 312 is directly executed. If it is detected that the device parameter information of the terminal device carried in the first SNMP registration request message is different from the device parameter information of the terminal device registered by the manager, step 311 is executed.

311. When the manager detects that the registered device parameter information of the terminal device is not exactly the same as the device parameter information of the terminal device carried in the SNMP registration request message, according to the second SNMP registration request The device parameter information of the terminal device in the message updates the registered device parameter information of the terminal device.

Specifically, when the terminal device updates the device parameter information, the second SNMP registration request message carries the updated device parameter information of the terminal device. After the manager receives the second SNMP registration request message and detects that the device parameter information of the terminal device carried in the second SNMP registration request message is different from the stored device parameter information of the terminal device, the manager may update the stored device parameter information. The device parameter information of the terminal device is updated.

Further, the manager may delete the stored device parameter information of the terminal device, and re-store the device parameter information of the terminal device carried in the second SNMP registration request message.

It should be noted that when the device parameter information of the terminal device carried in the second SNMP registration request message is different from the stored device parameter information of the terminal device, it means that the device parameter information of the terminal device has changed. The terminal device can add the device parameters of the terminal device to the device parameter information of the terminal device, and can also modify the information of some device parameters in the device parameter information of the terminal device. Of course, it can also modify the device parameters of the terminal device. Information, the present invention is not limited to this.

312. The manager sends a second SNMP registration response message to the terminal device. The terminal device receives the second SNMP registration response message.

Wherein, the second SNMP registration response message is a registration response message received by the terminal device other than the first SNMP registration response message. The second SNMP registration response message refers to the SNMP registration response message that the manager sends to the terminal device when it determines that the device parameter information of the terminal device has been registered after receiving the SNMP registration request message.

Specifically, in step 308, if the second SNMP registration request message received by the manager is the second extended SNMP registration request message, the second SNMP registration response message sent by the manager may include the second extended SNMP registration response message. If the second SNMP registration request message received by the manager is the second SNMP Trap message, the second SNMP registration response message sent by the manager may include the second SNMP inform message. For the terminal device receiving the second SNMP registration request message sent by the manager, refer to step 104, which will not be repeated here.

The embodiment of the present invention provides a method for discovering devices. The terminal device configures interface parameters with the manager, and establishes a communication channel between the terminal device and the manager. The terminal device uses the first time as a period on the channel. Send the first SNMP registration request message to the manager, the manager receives the first SNMP registration request message, and determines whether it is registered, if it is determined that it is not registered, then registers, and sends the first SNMP registration response message to the terminal equipment; if Determining that it has been registered and detected that the device parameter information of the terminal device carried in the first SNMP registration request message is the same as the device parameter information of the terminal device registered by the manager, then directly send the first SNMP registration response message to the terminal device; if Determine that it has been registered and detect that the device parameter information of the terminal device carried in the first SNMP registration request message is different from the device parameter information of the terminal device registered by the manager, then update the registered device parameter information of the terminal device, and Send the first SNMP registration response message to the terminal device. After receiving the first SNMP registration response message, the terminal device sends a second SNMP registration request message to the manager at the second time period, and the manager determines that it has registered according to the second SNMP registration request message, and detects the registered Whether the device parameter information of the terminal device is the same as the device parameter information of the terminal device carried in the second SNMP registration request message, if the same, then directly send the second SNMP registration response message to the terminal device; if not, update the registered device parameter information of the terminal device, and send a second SNMP registration response message to the terminal device. In this way, the terminal device actively sends a device parameter message to the manager without the need for the manager to scan to obtain the device parameter information of the terminal device, thereby solving the problem that the manager needs to It takes a long time to complete the problem of scanning once, which improves the working efficiency of the system. Moreover, if the device parameter information of the terminal device is updated, the terminal device can send the updated device parameter information to the manager in time, so that the manager can update the device parameter information of the terminal device in time, further improving the working efficiency of the system .

As shown in FIG. 5 , it is a functional schematic diagram of a terminal device provided by an embodiment of the present invention. Referring to FIG. 5 , the terminal device includes: a control unit 501 , a sending unit 502 , and a receiving unit 503 . in,

The control unit 501 is configured to, before the receiving unit 503 receives the first SNMP registration response message, trigger the sending unit 502 to send a first SNMP registration request message to the manager at a first time period .

The sending unit 502 is configured to send a first SNMP registration request message to the manager at a first time period.

Wherein, the first SNMP registration request message carries device parameter information of the terminal device. The device parameter information of the terminal device refers to static information of the terminal device.

Further, the device parameter information of the terminal device includes: device model, rated power, and management IP of the terminal device.

It should be noted that the device parameter information of the terminal device may also include other parameter information such as a manufacturer of the terminal device, which is not limited in the present invention.

It should be noted that the first time can be set in advance, the first time can be set to 15 seconds, the first time can also be set to 20 seconds, and the first time can also be set to other times, which is not limited by the present invention .

Optionally, the first SNMP registration request message may include: a first Simple Network Management Protocol extended SNMP registration request message.

At this time, the sending unit 502 is specifically configured to send the first extended SNMP registration request message to the manager with the first time as a period.

Alternatively, the first SNMP registration request message may include: a first SNMP Trap message.

Wherein, the first SNMP Trap message carries device parameter information of the terminal device.

At this time, the sending unit 502 is specifically configured to send the first SNMPTrap message to the manager with the first time as a period.

Further, the device parameter information of the terminal device carried in the first SNMP Trap message includes: adding a new Trap type to the first SNMP Trap message to identify the device parameter information of the terminal device.

The receiving unit 503 is configured to receive the first SNMP registration response message sent from the manager.

Wherein, the first SNMP registration response message is the first received registration response message sent by the manager.

Optionally, the first SNMP registration response message includes: a first extended SNMP registration response message; or, the first SNMP registration response message includes: a first SNMP inform message.

Specifically, when the sending unit 502 sends the first extended SNMP registration request message to the manager, the receiving unit 503 is specifically configured to receive the first extended SNMP registration response message sent by the manager.

When the sending unit 502 sends the first SNMP Trap message to the manager, the receiving unit 503 is specifically configured to receive the first SNMP inform message sent by the manager.

The control unit 501 is further configured to, after the receiving unit 503 receives the first SNMP registration response message, trigger the sending unit 502 to send a second SNMP registration request to the manager at a second time period information.

Specifically, before the receiving unit 503 receives the first SNMP registration response message, the control unit 501 may trigger the sending unit 502 to send the first SNMP registration request message to the manager at a period of the first time. After receiving the first SNMP registration response message, the receiving unit 503 may change the sending cycle, and trigger the sending unit 502 to send the second SNMP registration request message to the manager with the second time as a cycle.

Preferably, the value of the first time is smaller than the value of the second time.

The sending unit 502 is further configured to send a second SNMP registration request message to the manager at a second time period.

Wherein, the second SNMP registration request message carries device parameter information of the terminal device.

Further, the second SNMP registration request message sent by the sending unit 502 to the manager at a period of the second time may be the same as the first SNMP registration request message sent to the manager by the sending unit 502 at a period of the first time, or may not be the same. same.

It should be noted that the device parameter information of the terminal device carried in the second SNMP registration request message includes: when the terminal device updates the device parameter information, the second SNMP registration request message carries all The updated device parameter information of the terminal device.

Specifically, since both the second SNMP registration request message and the first SNMP registration request message carry the device parameter information of the terminal device, after the receiving unit 503 receives the first SNMP registration response message, when the device parameter information of the terminal device When the parameter information does not change, the second SNMP registration request message is the same as the first SNMP registration request message.

When the device parameter information of the terminal device changes, since the device parameter information of the terminal device carried in the second SNMP registration request message is the updated device parameter information, the second SNMP registration request message is the same as the first SNMP registration request message. The messages are different. At this time, the manager needs to update the stored device parameter information of the terminal device based on the device parameter information carried in the second SNMP registration request message.

It should be noted that the second time can be set in advance, the second time can be set to 45 seconds, the second time can also be set to 60 seconds, and the second time can also be set to other time corresponding to the first time. Time, the present invention is not limited to this.

Optionally, the second SNMP registration request message includes: a second extended SNMP registration request message.

At this time, the sending unit 502 is specifically configured to send the second extended SNMP registration request message to the manager with the second time as a period.

Alternatively, the second SNMP registration request message may include: a second SNMP Trap message.

Wherein, the second SNMP Trap message carries device parameter information of the terminal device.

At this time, the sending unit 502 is specifically configured to send the second SNMPTrap message to the manager with the second time as a period.

Further, the device parameter information of the terminal device carried in the second SNMP Trap message includes: adding a new Trap type to the second SNMP Trap message to identify the device parameter information of the terminal device.

The receiving unit 503 is further configured to receive the second SNMP registration response message sent by the manager.

Wherein, the second SNMP registration response message is a received registration response message other than the first SNMP registration response message.

It should be noted that after the terminal device receives the first SNMP registration response message, all other registration response messages it receives are second SNMP registration response messages.

Specifically, the second SNMP registration response message received by the receiving unit 503 may be that when the sending unit 502 sends the first SNMP registration request message to the manager with the first time as a period, the manager receives the first SNMP registration request message. After the registration request message, return the SNMP registration response message to the terminal device.

The second SNMP registration response message received by the receiving unit 503 may also be that when the sending unit 502 sends the second SNMP registration request message to the manager with the second time period, the manager receives the second SNMP registration request After the message, return the SNMP registration response message to the terminal device.

Optionally, the second SNMP registration response message includes: a second extended SNMP registration response message, or, the second SNMP registration response message includes: a second SNMP inform message.

Further, the control unit 501 is also configured to configure interface parameters with the manager.

Wherein, the interface parameter is used to establish a connection with the manager.

An embodiment of the present invention provides a terminal device. After the terminal device establishes a communication channel with the manager, it starts to send the first SNMP registration request message periodically at the first time. When the terminal device receives the After the first SNMP registration response message, the second SNMP registration response message is sent to the manager at the second time period, and the second SNMP registration response message is received. In this way, the terminal device can automatically send the device parameter information to the manager without the need for the manager to scan to obtain the device parameter information of the terminal device, thereby solving the problem of management when the IP address range of the device managed by the manager is large, the distribution is scattered, and the number is large. It takes a long time for the server to complete a scan, which improves the working efficiency of the system. Moreover, if the device parameter information of the terminal device is updated, the terminal device can send the updated device parameter information to the manager in time, so that the manager can update the device parameter information of the terminal device in time, further improving the working efficiency of the system .

As shown in FIG. 6 , it is a functional diagram of a manager provided by an embodiment of the present invention. Referring to FIG. 6 , the manager includes: a receiving unit 601 , a processing unit 602 , and a sending unit 603 . in,

The receiving unit 601 is configured to receive an SNMP registration request message sent from a terminal device.

Wherein, the SNMP registration request message carries device parameter information of the terminal device. The device parameter information refers to static information of the terminal device.

Further, the device parameter information of the terminal device includes: device model, rated power, and management IP of the terminal device.

It should be noted that the device parameter information of the terminal device may also include other parameter information such as a manufacturer of the terminal device, which is not limited in the present invention.

Specifically, the SNMP registration request message includes: a first SNMP registration request message or a second SNMP registration request message. The first SNMP registration request message is an SNMP registration request message sent by the terminal device to the manager at a first time period. The second SNMP registration request message is an SNMP registration request message sent by the terminal device to the manager at a second time period.

Further, the first SNMP registration request message includes: a first extended SNMP registration request message or a first SNMP Trap message. The second SNMP registration request message includes: a second extended SNMP registration request message, or a second SNMP Trap message.

Wherein, the device parameter information of the terminal device carried in the first SNMP Trap message includes: adding a new Trap type to the first SNMP Trap message to identify the device parameter information of the terminal device. The device parameter information of the terminal device carried in the second SNMP Trap message includes: adding a new Trap type to the second SNMP Trap message to identify the device parameter information of the terminal device.

A new trap type is added to the SNMP Trap message to identify the device parameter information of the terminal device. That is to say, the terminal device uses the existing message, adds or identifies the device parameter information of the terminal device in the existing message, and sends the existing message to the manager.

It should be noted that if the device parameter information of the terminal device carried in the second SNMP registration request message has not changed compared with the device parameter information of the terminal device carried in the first SNMP registration request message, then the second SNMP registration request message Same as the first SNMP registration request message. If the device parameter information of the terminal device carried in the second SNMP registration request message changes compared with the device parameter information of the terminal device carried in the first SNMP registration request message, the second SNMP registration request message and the first SNMP registration The request message is different.

It should be noted that the second SNMP registration request message is an SNMP registration request message sent by the terminal device at a second time period after receiving the first SNMP registration response message sent by the manager.

The processing unit 602 is configured to determine whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the registration request message.

The processing unit 602 is further configured to register the device parameter information of the terminal device when it is determined that the device parameter information of the terminal device is not registered, and trigger the sending unit 603 to send the first SNMP registration response message.

A sending unit 603, configured to send a first SNMP registration response message to the terminal device.

Specifically, the first SNMP registration response message includes: a first extended SNMP registration response message, or a first SNMP inform message. If the first SNMP registration request message received by the manager is the first extended SNMP registration request message, the sent first SNMP registration response message may include the first extended SNMP registration response message. If the first SNMP registration request message received by the manager is a first SNMP Trap message, the first SNMP registration response message sent by the manager may include an SNMP inform message.

The processing unit 602 is further configured to detect the registered device parameter information of the terminal device and the terminal information carried in the SNMP registration request message when it is determined that the device parameter information of the terminal device has been registered. Whether the device parameter information of the device is the same.

The processing unit 602 is further configured to trigger the sending of Unit 603 sends a second SNMP registration response message to the terminal device.

Specifically, the second SNMP registration response message includes: a second extended SNMP registration response message, or a second SNMP inform message. If the second SNMP registration request message received by the manager is a second extended SNMP registration request message, the sent second SNMP registration response message may include the second extended SNMP registration response message. If the first SNMP registration request message received by the manager is the second SNMP Trap message, the second SNMP registration response message sent by the manager may include an SNMP inform message.

The processing unit 602 is further configured to, in a case where it is detected that the registered device parameter information of the terminal device is not exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information, according to the The device parameter information of the terminal device in the SNMP registration request information updates the registered device parameter information of the terminal device; and triggers the sending unit 603 to send a second SNMP registration response message to the terminal device.

The sending unit 603 is further configured to send a second SNMP registration response message to the terminal device.

An embodiment of the present invention provides a manager. The manager receives a registration request message sent by a terminal device, and determines whether it has been registered according to the device parameter information of the terminal device carried in the registration request message. If it has not been registered, then register. In this way, the manager can receive the device parameter information automatically sent by the terminal device, without the need for the manager to scan to obtain the device parameter information of the terminal device, and then solve the problem of management when the IP address range of the device managed by the manager is large, the distribution is scattered, and the number is large. It takes a long time for the server to complete a scan, which improves the working efficiency of the system.

As shown in FIG. 7 , it is a schematic structural diagram of a terminal device provided by an embodiment of the present invention. Referring to FIG. 7, the terminal device includes: a transmitter 701, a receiver 702, a memory 703, and a processor 704 connected to the transmitter 701, the receiver 702, and the memory 703 respectively.

The processor 704 is configured to, before the receiver 702 receives the first SNMP registration response message, trigger the transmitter 701 to send a first SNMP registration request message to the manager at a first time period .

The sender 701 is configured to send a first SNMP registration request message to the manager at a first time period.

Wherein, the first SNMP registration request message carries device parameter information of the terminal device. The device parameter information of the terminal device refers to static information of the terminal device.

Further, the device parameter information of the terminal device includes: device model, rated power, and management IP of the terminal device.

It should be noted that the device parameter information of the terminal device may also include other parameter information such as a manufacturer of the terminal device, which is not limited in the present invention.

It should be noted that the first time can be set in advance, the first time can be set to 15 seconds, the first time can also be set to 20 seconds, and the first time can also be set to other times, which is not limited by the present invention .

Optionally, the first SNMP registration request message may include: a first Simple Network Management Protocol extended SNMP registration request message.

At this time, the sender 701 is specifically configured to send the first extended SNMP registration request message to the manager with the first time as a period.

Alternatively, the first SNMP registration request message may include: a first Simple Network Management Protocol trap SNMPTrap message.

Wherein, the first SNMP Trap message carries device parameter information of the terminal device.

At this time, the sender 701 is specifically configured to send the first SNMP Trap message to the manager with the first time as a period.

Further, the device parameter information of the terminal device carried in the first SNMP Trap message includes: adding a new Trap type to the first SNMP Trap message to identify the device parameter information of the terminal device.

The receiver 702 is configured to receive the first SNMP registration response message sent from the manager.

Wherein, the first SNMP registration response message is the first received registration response message sent by the manager.

Optionally, the first SNMP registration response message includes: a first extended SNMP registration response message; or, the first SNMP registration response message includes: a first SNMP inform message.

Specifically, when the sender 701 sends the first extended SNMP registration request message to the manager, the receiver 702 is specifically configured to receive the first extended SNMP registration response message sent by the manager.

When the sender 701 sends the first SNMP Trap message to the manager, the receiver 702 is specifically configured to receive the first SNMP inform message sent by the manager.

The processor 704 is further configured to, after the receiver 702 receives the first SNMP registration response message, trigger the transmitter 701 to send a second SNMP registration request to the manager at a second time period information.

Specifically, before the receiver 702 receives the first SNMP registration response message, the processor 704 may trigger the sender 701 to send the first SNMP registration request message to the manager at a period of the first time. After receiving the first SNMP registration response message, the receiver 702 may change the sending cycle, and trigger the sender 701 to send the second SNMP registration request message to the manager with the second time as a cycle.

Preferably, the value of the first time is smaller than the value of the second time.

The sender 701 is further configured to send a second SNMP registration request message to the manager at a second time period.

Wherein, the second SNMP registration request message carries device parameter information of the terminal device.

Further, the second SNMP registration request message sent by the sender 701 to the manager at a period of the second time may be the same as the first SNMP registration request message sent to the manager by the sender 701 at a period of the first time, or may not be the same. same.

It should be noted that the device parameter information of the terminal device carried in the second SNMP registration request message includes: when the terminal device updates the device parameter information, the second SNMP registration request message carries all The updated device parameter information of the terminal device.

Specifically, since both the second SNMP registration request message and the first SNMP registration request message carry the device parameter information of the terminal device, after the receiver 702 receives the first SNMP registration response message, when the device parameter information of the terminal device When the parameter information does not change, the second SNMP registration request message is the same as the first SNMP registration request message.

When the device parameter information of the terminal device changes, since the device parameter information of the terminal device carried in the second SNMP registration request message is the updated device parameter information, the second SNMP registration request message is the same as the first SNMP registration request message. The messages are different. At this time, the manager needs to update the device parameter information of the terminal device stored in the memory 703 based on the device parameter information carried in the second SNMP registration request message.

It should be noted that the second time can be set in advance, the second time can be set to 45 seconds, the second time can also be set to 60 seconds, and the second time can also be set to other time corresponding to the first time. Time, the present invention is not limited to this.

Optionally, the second SNMP registration request message includes: a second extended SNMP registration request message.

At this time, the sender 701 is specifically configured to send the second extended SNMP registration request message to the manager with the second time as a period.

Alternatively, the second SNMP registration request message may include: a second SNMP Trap message.

Wherein, the second SNMP Trap message carries device parameter information of the terminal device.

At this time, the sender 701 is specifically configured to send the second SNMP Trap message to the manager with the second time as a period.

Further, the device parameter information of the terminal device carried in the second SNMP Trap message includes: adding a new Trap type to the second SNMP Trap message to identify the device parameter information of the terminal device.

The receiver 702 is further configured to receive the second SNMP registration response message sent by the manager.

Wherein, the second SNMP registration response message is a received SNMP registration response message other than the first SNMP registration response message.

It should be noted that, after the terminal device receives the first SNMP registration response message, other SNMP registration response messages received are all second SNMP registration response messages.

Specifically, the second SNMP registration response message received by the receiver 702 may be that when the sender 701 sends the first SNMP registration request message to the manager with the first time period, the manager receives the first SNMP registration request message. After the registration request message, return the SNMP registration response message to the terminal device.

The second SNMP registration response message received by the receiver 702 may also be that the manager receives the second SNMP registration request when the transmitter 701 sends the second SNMP registration request message to the manager with the second time as a period After the message, return the SNMP registration response message to the terminal device.

Optionally, the second SNMP registration response message includes: a second extended SNMP registration response message, or, the second SNMP registration response message includes: a second SNMP inform message.

Further, the processor 704 is also configured to configure interface parameters with the manager.

Wherein, the interface parameter is used to establish a connection with the manager.

An embodiment of the present invention provides a terminal device. After the terminal device establishes a communication channel with the manager, it starts to send the first SNMP registration request message periodically at the first time. When the terminal device receives the After the first SNMP registration response message, the second SNMP registration response message is sent to the manager at the second time period, and the second SNMP registration response message is received. In this way, the terminal device can automatically send the device parameter information to the manager without the need for the manager to scan to obtain the device parameter information of the terminal device, thereby solving the problem of management when the IP address range of the device managed by the manager is large, the distribution is scattered, and the number is large. It takes a long time for the server to complete a scan, which improves the working efficiency of the system. Moreover, if the device parameter information of the terminal device is updated, the terminal device can send the updated device parameter information to the manager in time, so that the manager can update the device parameter information of the terminal device in time, further improving the working efficiency of the system .

As shown in FIG. 8 , it is a schematic structural diagram of a manager provided by an embodiment of the present invention. Referring to FIG. 8 , the manager includes: a sender 801 , a receiver 802 , a memory 804 and a processor 803 connected to the sender 801 , receiver 802 , and memory 804 respectively. in,

The receiver 802 is configured to receive the SNMP registration request message sent from the terminal device.

Wherein, the SNMP registration request message carries device parameter information of the terminal device. The device parameter information refers to static information of the terminal device.

Further, the device parameter information of the terminal device includes: device model, rated power, and management IP of the terminal device.

It should be noted that the device parameter information of the terminal device may also include other parameter information such as a manufacturer of the terminal device, which is not limited in the present invention.

Specifically, the SNMP registration request message includes: a first SNMP registration request message or a second SNMP registration request message. The first SNMP registration request message is an SNMP registration request message sent by the terminal device to the manager at a first time period. The second SNMP registration request message is an SNMP registration request message sent by the terminal device to the manager at a second time period.

Further, the first SNMP registration request message includes: a first extended SNMP registration request message or a first SNMP Trap message. The second SNMP registration request message includes: a second extended SNMP registration request message, or a second SNMP Trap message.

Wherein, the device parameter information of the terminal device carried in the first SNMP Trap message includes: adding a new Trap type to the first SNMP Trap message to identify the device parameter information of the terminal device. The device parameter information of the terminal device carried in the second SNMP Trap message includes: adding a new Trap type to the second SNMP Trap message to identify the device parameter information of the terminal device.

A new trap type is added to the SNMP Trap message to identify the device parameter information of the terminal device. That is to say, the terminal device uses the existing message, adds or identifies the device parameter information of the terminal device in the existing message, and sends the existing message to the manager.

It should be noted that if the device parameter information of the terminal device carried in the second SNMP registration request message has not changed compared with the device parameter information of the terminal device carried in the first SNMP registration request message, then the second SNMP registration request message Same as the first SNMP registration request message. If the device parameter information of the terminal device carried in the second SNMP registration request message changes compared with the device parameter information of the terminal device carried in the first SNMP registration request message, the second SNMP registration request message and the first SNMP registration The request message is different.

It should be noted that the second SNMP registration request message is an SNMP registration request message sent by the terminal device at a second time period after receiving the first SNMP registration response message sent by the manager.

The processor 803 is configured to determine whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message.

The processor 803 is further configured to register the device parameter information of the terminal device when it is determined that the device parameter information of the terminal device is not registered, and trigger the transmitter 801 to send the first SNMP registration response message.

The sender 801 is configured to send a first SNMP registration response message to the terminal device.

Specifically, the first SNMP registration response message includes: a first extended SNMP registration response message, or a first SNMP inform message. If the first SNMP registration request message received by the manager is the first extended SNMP registration request message, the sent first SNMP registration response message may include the first extended SNMP registration response message. If the first SNMP registration request message received by the manager is a first SNMP Trap message, the first SNMP registration response message sent by the manager may include an SNMP inform message.

The processor 803 is further configured to detect the registered device parameter information of the terminal device and the terminal information carried in the SNMP registration request message when it is determined that the device parameter information of the terminal device has been registered. Whether the device parameter information of the device is the same;

The processor 803 is further configured to trigger the sending of The device 801 sends a second SNMP registration response message to the terminal device;

Specifically, the second SNMP registration response message includes: a second extended SNMP registration response message, or a second SNMP inform message. If the second SNMP registration request message received by the manager is a second extended SNMP registration request message, the sent second SNMP registration response message may include the second extended SNMP registration response message. If the first SNMP registration request message received by the manager is the second SNMP Trap message, the second SNMP registration response message sent by the manager may include an SNMP inform message.

The processor 803 is further configured to, in a case where it is detected that the registered device parameter information of the terminal device is not exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information, according to the The device parameter information of the terminal device in the SNMP registration request information, update the registered device parameter information of the terminal device, that is, store the device parameter information of the terminal device carried in the SNMP registration request information into the memory 804; And trigger the transmitter 801 to send a second SNMP registration response message to the terminal device;

The sender 801 is further configured to send a second SNMP registration response message to the terminal device.

An embodiment of the present invention provides a manager. The manager receives the SNMP registration request message sent by the terminal device, and determines whether the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message. Register, then register. In this way, the manager can receive the device parameter information automatically sent by the terminal device, without the need for the manager to scan to obtain the device parameter information of the terminal device, and then solve the problem of management when the IP address range of the device managed by the manager is large, the distribution is scattered, and the number is large. It takes a long time for the server to complete a scan, which improves the working efficiency of the system.

An embodiment of the present invention provides a device discovery system, as shown in FIG. 9 , including: a terminal device 901 and a manager 902 .

Wherein, the terminal device 901 is the terminal device described in the foregoing embodiments.

The manager 902 is the manager described in the above embodiments.

Embodiments of the present invention provide a method, device, and system for discovering devices. The terminal device configures the interface parameters between the manager and establishes a communication channel between the terminal device and the manager. The terminal device uses the first The time is periodic, send the first SNMP registration request message to the manager, the manager receives the first SNMP registration request message, and determines whether it is registered, if it is determined that it is not registered, then registers, and sends the first SNMP registration request message to the terminal device Response message; if it is determined that it has registered and detects that the device parameter information of the terminal device carried in the first SNMP registration request message is the same as the device parameter information of the terminal device registered by the manager, then directly send the first SNMP registration message to the terminal device Response message; if it is determined that it has been registered and it is detected that the device parameter information of the terminal device carried in the first SNMP registration request message is different from the device parameter information of the terminal device registered by the manager, update the registered device of the terminal device parameter information, and send the first SNMP registration response message to the terminal device. After receiving the first SNMP registration response message, the terminal device sends a second SNMP registration request message to the manager at the second time period, and the manager determines that it has registered according to the second SNMP registration request message, and detects the registered Whether the device parameter information of the terminal device is the same as the device parameter information of the terminal device carried in the second SNMP registration request message, if the same, then directly send the second SNMP registration response message to the terminal device; if not, update the registered device parameter information of the terminal device, and send a second SNMP registration response message to the terminal device. In this way, the terminal device actively sends a device parameter message to the manager without the need for the manager to scan to obtain the device parameter information of the terminal device, thereby solving the problem that the manager needs to It takes a long time to complete the problem of scanning once, which improves the working efficiency of the system. Moreover, if the device parameter information of the terminal device is updated, the terminal device can send the updated device parameter information to the manager in time, so that the manager can update the device parameter information of the terminal device in time, further improving the working efficiency of the system .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (29)

1. A method for discovering equipment, comprising: After the communication channel is established between the terminal device and the manager, the terminal device sends a first Simple Network Management Protocol SNMP registration request message to the manager with the first time period, and the terminal device is unregistered or registered the terminal device; the first SNMP registration request message carries the device parameter information of the terminal device; the device parameter information of the terminal device refers to the static information of the terminal device; Receive the first SNMP registration response message sent by the manager; the first SNMP registration response message is the first received SNMP registration response message sent by the manager; After receiving the first SNMP registration response message, send a second SNMP registration request message to the manager with a second period of time; the second SNMP registration request message carries the device of the terminal device Parameter information; the first SNMP registration request message is the same as or different from the second SNMP registration request message; receiving a second SNMP registration response message sent by the manager; wherein, the second SNMP registration response message is a received SNMP registration response message other than the first SNMP registration response message. 2. The method according to claim 1, characterized in that, before the first SNMP registration request message is sent to the manager at the first time as a cycle, further comprising: Configure interface parameters with the manager; the interface parameters are used to establish a connection with the manager. 3. The method according to claim 1, wherein the value of the first time is smaller than the value of the second time. 4. The method according to claim 1, wherein the device parameter information of the terminal device carried in the second SNMP registration request message includes: When the terminal device updates the device parameter information, the second SNMP registration request message carries the updated device parameter information of the terminal device. 5. The method according to any one of claims 1-4, wherein the first SNMP registration request message comprises: a first extended SNMP registration request message; Said taking the first time as a period, sending the first SNMP registration request message to the manager includes: Taking the first time as a period, sending the first extended SNMP registration request message to the manager; The first SNMP registration response message includes: a first extended SNMP registration response message; The receiving the first SNMP registration response message sent by the manager includes: receiving the first extended SNMP registration response message sent by the manager; The second SNMP registration request message includes: a second extended SNMP registration request message; After receiving the first SNMP registration response message, sending a second SNMP registration request message to the manager with a second time period as a period includes: After receiving the first extended SNMP registration response message, sending a second extended SNMP registration request message to the manager at a second time period; The second SNMP registration response message includes: a second extended SNMP registration response message; The receiving the second SNMP registration response message sent by the manager includes: receiving the second extended SNMP registration response message sent by the manager. 6. The method according to any one of claims 1-4, characterized in that, The first SNMP registration request message includes: a first Simple Network Management Protocol trap SNMP Trap message; Said taking the first time as a cycle, sending the first SNMP registration request message to the manager includes: Taking the first time as a period, sending the first SNMP Trap message to the manager; wherein, the first SNMP Trap message carries device parameter information of the terminal device; The first SNMP registration response message includes: the first Simple Network Management Protocol information SNMP inform message; The receiving the first SNMP registration response message sent by the manager includes: receiving the first SNMP inform message sent by the manager; The second SNMP registration request message includes: a second SNMP Trap message; After receiving the first SNMP registration response message, sending a second SNMP registration request message to the manager with a second time period as a period includes: After receiving the first SNMP registration response message, sending a second SNMP Trap message to the manager at a second time period; wherein, the second SNMP Trap message carries device parameter information of the terminal device ; The second SNMP registration response message includes: a second SNMP inform message; The receiving the second SNMP registration response message sent by the manager includes: receiving the second SNMP inform message sent by the manager. 7. The method of claim 6, wherein, The device parameter information of the terminal device carried in the first SNMP Trap message includes: In the first SNMP Trap message, a new Trap type is added to identify the device parameter information of the terminal device; The device parameter information of the terminal device carried in the second SNMP Trap message includes: A new Trap type is added to the second SNMP Trap message to identify device parameter information of the terminal device. 8. A method for discovering devices, comprising: Receive the SNMP registration request message sent by the terminal device; the SNMP registration request message carries the device parameter information of the terminal device; the device parameter information of the terminal device refers to the static information of the terminal device; the SNMP registration The request message includes: a first SNMP registration request message or a second SNMP registration request message; the first SNMP registration request message is an SNMP registration request message sent by the terminal device to the manager with the first time period; the The second SNMP registration request message is an SNMP registration request message sent to the manager by the terminal device taking the second time as a cycle; Determine whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message; If it is determined that the device parameter information of the terminal device is not registered, register the device parameter information of the terminal device, and send a first SNMP registration response message to the terminal device. 9. The method according to claim 8, further comprising: When it is determined that the device parameter information of the terminal device has been registered, detecting whether the registered device parameter information of the terminal device is the same as the device parameter information of the terminal device carried in the first SNMP registration request message ; When it is detected that the registered device parameter information of the terminal device is exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information, sending a second SNMP registration response message to the terminal device; When it is detected that the registered device parameter information of the terminal device is not exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information, according to the terminal device in the SNMP registration request information, device parameter information of the device, updating the registered device parameter information of the terminal device; and sending a second SNMP registration response message to the terminal device. 10. The method according to claim 8 or 9, characterized in that, In the case where the SNMP registration request message includes a first SNMP registration request message, the first SNMP registration request message includes: a first extended SNMP registration request message; In the case where the SNMP registration request message includes a second SNMP registration request message, the second SNMP registration request message includes: a second extended SNMP registration request message; In the case where it is determined that the device parameter information of the terminal device is not registered, the first SNMP registration response message includes: a first extended SNMP registration response message; In the case that it is determined that the device parameter information of the terminal device has been registered, the second SNMP registration response message includes: a second extended SNMP registration response message. 11. The method according to claim 8 or 9, characterized in that, In the case where the SNMP registration request message includes a first SNMP registration request message, the first SNMP registration request message includes: a first SNMP Trap message; the device parameter information of the terminal device is carried in the first SNMP Trap message; In the case where the SNMP registration request message includes a second SNMP registration request message, the second SNMP registration request message includes: a second SNMP Trap message; the second SNMP Trap message carries device parameter information of the terminal device ; In the case where it is determined that the device parameter information of the terminal device is not registered, the first SNMP registration response message includes: a first SNMP inform message; In the case where it is determined that the device parameter information of the terminal device has been registered, the second SNMP registration response message includes: a second SNMP inform message. 12. The method of claim 11, wherein, The device parameter information of the terminal device carried in the first SNMP Trap message includes: Adding a new Trap type to identify the device parameter information of the terminal device in the first SNMP Trap message; The device parameter information of the terminal device carried in the second SNMP Trap message includes: A new Trap type is added to the second SNMP Trap message to identify the device parameter information of the terminal device. 13. A terminal device, comprising: a control unit, a sending unit, and a receiving unit; The control unit is configured to establish a communication channel between the terminal device and the manager, the terminal device is an unregistered or registered terminal device, and before the receiving unit receives the first SNMP registration response message, Triggering the sending unit to send a first SNMP registration request message to the manager with the first time as a period; The sending unit is configured to send a first SNMP registration request message to the manager with a first time period; the first SNMP registration request message carries device parameter information of the terminal device; the terminal device's The device parameter information refers to the static information of the terminal device; The receiving unit is configured to receive a first SNMP registration response message sent from the manager; the first SNMP registration response message is the first received SNMP registration response message sent by the manager; The control unit is further configured to, after the receiving unit receives the first SNMP registration response message, trigger the sending unit to send a second SNMP registration request message to the manager in a period of the second time; The first SNMP registration request message is the same as or different from the second SNMP registration request message; The sending unit is further configured to send a second SNMP registration request message to the manager with a second time period; the second SNMP registration request message carries device parameter information of the terminal device; The receiving unit is further configured to receive a second SNMP registration response message sent by the manager; the second SNMP registration response message is a received SNMP registration response message other than the first SNMP registration response message. 14. The terminal device according to claim 13, characterized in that, The control unit is further configured to configure interface parameters with the manager; the interface parameters are used to establish a connection with the manager. 15. The terminal device according to claim 13, characterized in that, The value of the first time is less than the value of the second time. 16. The terminal device according to claim 13, characterized in that, The device parameter information of the terminal device carried in the second SNMP registration request message includes: When the terminal device updates the device parameter information, the second SNMP registration request message carries the updated device parameter information of the terminal device. 17. The terminal device according to any one of claims 13-16, characterized in that, The first SNMP registration request message includes: a first Simple Network Management Protocol extended SNMP registration request message; The first SNMP registration response message includes: a first extended SNMP registration response message; The second SNMP registration request message includes: a second extended SNMP registration request message; The second SNMP registration response message includes: a second extended SNMP registration response message. 18. The terminal device according to any one of claims 13-16, characterized in that, The first SNMP registration request message includes: a first Simple Network Management Protocol trap SNMP Trap message; the first SNMP Trap message carries device parameter information of the terminal device; The second SNMP registration request message includes: a second SNMP Trap message; the second SNMP Trap message carries device parameter information of the terminal device; The first SNMP registration response message includes: a first SNMP inform message; The second SNMP registration response message includes: a second SNMP inform message. 19. The terminal device according to claim 18, characterized in that, The device parameter information of the terminal device carried in the first SNMP Trap message includes: In the first SNMP Trap message, a new Trap type is added to identify the device parameter information of the terminal device; The device parameter information of the terminal device carried in the second SNMP Trap message includes: A new Trap type is added to the second SNMP Trap message to identify device parameter information of the terminal device. 20. A manager, characterized in that, comprising: The receiving unit is used to receive the SNMP registration request message sent from the terminal device; the SNMP registration request message carries the device parameter information of the terminal device; the device parameter information refers to the static information of the terminal device; the registration The request message includes: a first SNMP registration request message or a second SNMP registration request message; the first SNMP registration request message is an SNMP registration request message sent by the terminal device to the manager with the first time period; the The second SNMP registration request message is an SNMP registration request message sent to the manager by the terminal device taking the second time as a cycle; A processing unit, configured to determine whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message; The processing unit is further configured to register the device parameter information of the terminal device when it is determined that the device parameter information of the terminal device is not registered; and trigger the sending unit to send the first SNMP registration information to the terminal device response message; The sending unit is configured to send a first SNMP registration response message to the terminal device. 21. The manager of claim 20, wherein: The processing unit is further configured to, when it is determined that the device parameter information of the terminal device has been registered, detect the registered device parameter information of the terminal device and the Whether the device parameter information of the terminal device is the same; The processing unit is further configured to trigger the sending unit when it is detected that the registered device parameter information of the terminal device is exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information Sending a second SNMP registration response message to the terminal device; The processing unit is further configured to, when it is detected that the registered device parameter information of the terminal device is not exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information, according to the SNMP The device parameter information of the terminal device in the registration request information updates the registered device parameter information of the terminal device; and triggers the sending unit to send a second SNMP registration response message to the terminal device; The sending unit is further configured to send a second SNMP registration response message to the terminal device. 22. The manager of claim 20 or 21, wherein In the case where the SNMP registration request message includes a first SNMP registration request message, the first SNMP registration request message includes: a first extended SNMP registration request message; In the case where the SNMP registration request message includes a second SNMP registration request message, the second SNMP registration request message includes: a second extended SNMP registration request message; In the case where it is determined that the device parameter information of the terminal device is not registered, the first SNMP registration response message includes: a first extended SNMP registration response message; In the case that it is determined that the device parameter information of the terminal device has been registered, the second SNMP registration response message includes: a second extended SNMP registration response message. 23. The manager of claim 20 or 21, wherein In the case where the SNMP registration request message includes a first SNMP registration request message, the first SNMP registration request message includes: a first SNMP Trap message; the device parameter information of the terminal device is carried in the first SNMP Trap message; In the case where the SNMP registration request message includes a second SNMP registration request message, the second SNMP registration request message includes: a second SNMP Trap message; the second SNMP Trap message carries device parameter information of the terminal device ; In the case where it is determined that the device parameter information of the terminal device is not registered, the first SNMP registration response message includes: a first SNMP inform message; In the case where it is determined that the device parameter information of the terminal device has been registered, the second SNMP registration response message includes: a second SNMP inform message. 24. The manager of claim 23, wherein The device parameter information of the terminal device carried in the first SNMP Trap message includes: Adding a new Trap type to identify the device parameter information of the terminal device in the first SNMP Trap message; The device parameter information of the terminal device carried in the second SNMP Trap message includes: A new Trap type is added to the second SNMP Trap message to identify the device parameter information of the terminal device. 25. A terminal device, comprising: a processor, a transmitter, and a receiver; The processor is configured to establish a communication channel between the terminal device and the manager, the terminal device is an unregistered or registered terminal device, and before the receiver receives the first SNMP registration response message, Triggering the sender to send a first SNMP registration request message to the manager with the first time as a period; The sender is configured to send a first SNMP registration request message to the manager with the first time as a period; the first SNMP registration request message carries device parameter information of the terminal device; the terminal device's The device parameter information refers to the static information of the terminal device; The receiver is configured to receive a first SNMP registration response message sent from the manager; the first SNMP registration response message is the first received SNMP registration response message sent by the manager; The processor is further configured to, after the receiver receives the first SNMP registration response message, trigger the sender to send a second SNMP registration request message to the manager with a second time period as a period; The first SNMP registration request message is the same as or different from the second SNMP registration request message; The sender is further configured to send a second SNMP registration request message to the manager with a second time period; the second SNMP registration request message carries device parameter information of the terminal device; The receiver is further configured to receive a second SNMP registration response message sent by the manager; the second SNMP registration response message is a received SNMP registration response message other than the first SNMP registration response message. 26. The terminal device according to claim 25, characterized in that, The processor is further configured to configure interface parameters with the manager; the interface parameters are used to establish a connection with the manager. 27. A manager, comprising: The receiver is configured to receive an SNMP registration request message sent from a terminal device; the SNMP registration request message carries device parameter information of the terminal device; the device parameter information refers to static information of the terminal device; the registration The request message includes: a first SNMP registration request message or a second SNMP registration request message; the first SNMP registration request message is an SNMP registration request message sent by the terminal device to the manager with the first time period; the The second SNMP registration request message is an SNMP registration request message sent to the manager by the terminal device taking the second time as a cycle; A processor, configured to determine whether the device parameter information of the terminal device has been registered according to the device parameter information of the terminal device carried in the SNMP registration request message; The processor is further configured to register the device parameter information of the terminal device when it is determined that the device parameter information of the terminal device is not registered; and trigger the sender to send the first SNMP registration information to the terminal device response message; The sender is configured to send a first SNMP registration response message to the terminal device. 28. The manager of claim 27, wherein The processor is further configured to detect whether the registered device parameter information of the terminal device is the same as the device parameter information of the terminal device carried in the first SNMP registration request message; The processor is further configured to trigger the transmitter when it is detected that the registered device parameter information of the terminal device is exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information Sending a second SNMP registration response message to the terminal device; The processor is further configured to, when it is detected that the registered device parameter information of the terminal device is not exactly the same as the device parameter information of the terminal device carried in the SNMP registration request information, according to the SNMP The device parameter information of the terminal device in the registration request information updates the registered device parameter information of the terminal device; and triggers the sender to send a second SNMP registration response message to the terminal device; The sender is further configured to send a second SNMP registration response message to the terminal device. 29. A system for discovering devices, comprising: a terminal device and a manager; The terminal device is the terminal device described in any one of claims 13-19; or, the terminal device is the terminal device described in claim 25 or 26; The manager is the manager according to any one of claims 20-24; or, the manager is the manager according to claim 27 or 28.