WO2016127719A1

WO2016127719A1 - Information transmitting method, related network device and system

Info

Publication number: WO2016127719A1
Application number: PCT/CN2015/099939
Authority: WO
Inventors: 董杰; 陈国义; 张民贵; 苗福友; 何健飞
Original assignee: 华为技术有限公司
Priority date: 2015-02-12
Filing date: 2015-12-30
Publication date: 2016-08-18
Also published as: CN105991579A; CN105991579B

Abstract

Disclosed are an information transmitting method, related network device and system, for addressing the problem of low efficiency of a device supporting a specific protocol in a situation of updating a large amount of frequently changing information. The method provided in an embodiment of the present invention comprises: when information collected by a first network device supporting a specific protocol complies with an information identification of a second network device, actively transmitting, by the first network device, first information to the second network device also supporting the specific protocol without needing to receive an information request proposed by the second network device, the first information carrying the information complied with the information identification of the second network device and collected by the first network device therein.

Description

Information transmission method, related network device and system

This application claims the priority of the Chinese Patent Application filed on February 12, 2015 by the Chinese Patent Office, the application number is CN 201510075461.X, and the invention is entitled "Information Transmission Method, Related Network Equipment and System", the entire contents of which are incorporated by reference. Combined in this application.

Technical field

The present invention relates to the field of communications, and in particular, to an information sending method, a related network device, and a system.

Background technique

Software Defined Network (SDN) is a popular technology in the network field. Its main purpose is to enable the network administrator and the upper application of the network by separating and layering the control and forwarding planes and providing an open interface. More convenient and efficient use of various resources of the network, improve network utilization efficiency, reduce usage and operating costs.

There are a variety of specific technologies for implementing SDN. The Interface to the Routing System (I2RS) is a technology proposed by the Internet Engineering Task Force (IETF) to provide an open interface on a routing system. Enables upper-level users to read and manipulate information, policies, and status in the routing system. The upper layer users of I2RS can be network management applications, network controllers, or various applications that need to use the network. The architecture of the I2RS includes a client client and a proxy device agent, wherein the client can be located in the upper layer user (eg, a network management device, a network controller, or various applications), and the agent is usually located in the network device. Between the client and the agent, a protocol is needed to implement the connection and information interaction between the two. The control management protocol with the hierarchical structure, the message layer and the content layer are independent, and the message layer contains the request response message mechanism is expected to be Check the protocol that is used to send messages between the client and the agent.

However, in practical applications, the information that I2RS needs to pass between the client and the agent is diverse, including network topology information, routing information, policy information, status information, and various entries in the network device. The amount of information in this type of information is large, and the frequency of updates Higher. At present, such a protocol having a hierarchical structure and including a request response message mechanism cannot be directly applied to the I2RS architecture. Specifically, since the request response mechanism requires the first network device to first initiate a request message to the second network device to request the required The information, after receiving the request message, the second network device replies with a response message carrying the information requested by the first network device, and responds to the received request message, which is not suitable for a large number of frequently changing information update scenarios. Use, otherwise it will make the devices supporting this protocol inefficient and increase the burden on the device and network.

Summary of the invention

Embodiments of the present invention provide an information sending method, a related network device, and a system, which are used to solve a large number of devices that support a control management protocol having a hierarchical structure, a message layer and a content layer being independent of each other, and a message layer including a request response message mechanism. Inefficiencies in changing information scenarios with frequent changes.

A first aspect of the embodiments of the present invention provides an information sending method, where a first network device and a second network device support a specific protocol, where the specific protocol is a control management protocol, has a hierarchical structure, and includes at least a message. a layer and a content layer, the message layer is used to define a message type for implementing protocol interaction, the message type includes a request message and a response message, and the content layer is used to define data and information that the protocol needs to transmit and interact with, The message layer and the content layer are independent of each other, and the method includes:

The first network device collects information in the network;

The first network device and the second network device establish a session by using the specific protocol, and obtain an information identifier of the second network device in the session establishment process;

When the information collected by the first network device meets the information identifier, the first network device does not need to first receive the information request from the second network device, and sends a first message to the second network device. And the first message carries the information that is collected by the first network device that meets the information identifier, and the information request indicates that the information that meets the information identifier is obtained.

With reference to the first aspect of the embodiments of the present invention, in the first implementation manner of the first aspect of the embodiment, the step of: sending the first message to the second network device:

When the first network device determines that information carried in the first message sent to the second network device needs to be updated, the first network device collects updated information;

The first network device sends a second message to the second network device, where the second message carries the updated information collected by the first network device.

With reference to the first aspect of the embodiment of the present invention or the first implementation manner of the first aspect, in a second implementation manner of the first aspect of the embodiment, the information identifier is used to indicate that the second network device supports Type of information;

When the information collected by the first network device meets the information identifier, the first network device does not need to first receive the information request from the second network device, and actively sends the information to the second network device. a message, where the first message carries the information that is collected by the first network device and meets the information identifier, and specifically includes:

When the information collected by the first network device meets the information type supported by the second network device, the first network device does not need to first receive the information request from the second network device, and actively sends the second request to the second network device. The network device sends a first message, where the first message carries information that is collected by the first network device and that matches the type of information supported by the second network device.

In conjunction with the first aspect of the embodiment of the present invention or the first implementation manner of the first aspect, in a third implementation manner of the first aspect of the embodiment, the information identifier is used to indicate information about the second network device. demand;

When the information collected by the first network device meets the information requirement of the second network device, the first network device does not need to first receive the information request from the second network device, and actively sends the information request to the second network device. The device sends a first message, where the first message carries information that is collected by the first network device and meets the information requirement of the second network device.

With reference to the first aspect of the embodiment of the present invention or the first implementation manner of the first aspect, in a fourth implementation manner of the first aspect of the embodiment, the message type further includes a push message, where the push message is A one-way message, the second network device does not need to reply to the response message after receiving the push message, and the first message belongs to the push message.

With reference to the first implementation manner of the first aspect of the embodiment of the present invention, in a fifth implementation manner of the first aspect of the embodiment, the message type further includes a push message, and the push message For a one-way message, the second network device does not need to reply to the response message after receiving the push message, and both the first message and the second message belong to the push message.

With reference to the fourth implementation manner of the first aspect of the embodiment of the present invention or the fifth implementation manner of the first aspect, in the sixth implementation manner of the first aspect of the embodiment, the specific protocol is an extended network configuration Netconf. The protocol message is a remote procedure call request message rpc in the Netconf protocol, the response message is a remote procedure call response message rpc-reply in the Netconf protocol, and the extended Netconf protocol includes a remote procedure call. Pushing the message rpc-push, the push message is the rpc-push.

With reference to the sixth implementation manner of the first aspect of the embodiment of the present invention, in a seventh implementation manner of the first aspect of the embodiment, the rpc-push includes the rpc-push namespace and the rpc- Push the specific information content to be published.

With reference to the first aspect of the embodiment of the present invention or the first implementation manner of the first aspect, in an eighth implementation manner of the first aspect of the embodiment, the operation type supported by the request message includes a publishing operation, and the publishing The operation may enable the second network device to save the information in the request message carrying the publishing operation after receiving the request message carrying the publishing operation; the first message belongs to the request message carrying the publishing operation.

With reference to the first implementation manner of the first aspect of the embodiments of the present disclosure, in a ninth implementation manner of the first aspect of the embodiments, the operation type supported by the request message includes a publishing operation, and the publishing operation enables the After receiving the request message carrying the publishing operation, the second network device saves the information in the request message carrying the publishing operation; the first message and the second message belong to the request carrying the publishing operation Message.

With reference to the eighth implementation manner of the first aspect of the embodiment of the present invention or the ninth implementation manner of the first aspect, in the tenth implementation manner of the first aspect of the embodiment, the method further includes:

The first network device receives a third message sent by the second network device, where the third message is a response message that the second network device responds to at least two request messages carrying the publishing operation.

With reference to the tenth implementation manner of the first aspect of the embodiment of the present invention, in the eleventh implementation manner of the first aspect of the embodiment, the response to the at least two request messages carrying the publishing operation is The message includes: at least two message numbers carrying request messages for the publishing operation.

With reference to the eleventh implementation manner of the first aspect of the embodiments of the present invention, in the twelfth implementation manner of the first aspect of the embodiments, the specific protocol is configured to be an extended network configuration Netconf protocol, where the response message is An extended rpc-reply in the extended Netconf protocol, the extended rpc-reply includes at least two message numbers carrying request messages for issuing operations.

With reference to the eighth implementation manner of the first aspect of the first aspect of the embodiments of the present invention, to any one of the twelfth implementation manners of the first aspect, The specific protocol configures the Netconf protocol for the extended network, the request message is an extended rpc in the extended Netconf protocol, and the extended rpc includes the publishing operation.

With reference to any one of the implementation of the first aspect of the present invention to the thirteenth implementation manner of the first aspect, in the fourteenth implementation manner of the first aspect of the embodiment, the first network device collects The information includes: topology information of the network, routing information of the network, performance information of the network, status information of the network device, and at least one of statistical information of the network device;

or,

At least one of configuration information, policy information, and demand information.

A second aspect of the embodiments of the present invention provides an information sending method, where a first network device and a second network device support a specific protocol, where the specific protocol is a control management protocol, has a hierarchical structure, and includes at least a message. a layer and a content layer, the message layer is used to define a message type for implementing protocol interaction, the message type includes a request message and a response message, and the content layer is used to define data and information that the protocol needs to transmit and interact with, The message layer and the content layer are independent of each other, and the method includes:

After the second network device and the first network device establish a session by using the specific protocol, the second network device does not need to first send an information request to the first network device, and directly receives the first network. a first message sent by the device, where the first message carries information that is collected by the first network device and that meets the information identifier of the second network device, where the information request indicates that the second Information identifying the information of the network device;

Extracting, by the second network device, the information that meets the information identifier of the second network device from the first message;

The second network device saves the information that meets the information identifier of the second network device.

In conjunction with the second aspect of the embodiments of the present invention, the first implementation of the second aspect of the embodiments of the present invention In the mode, the step of directly receiving the first message sent by the first network device further includes:

Receiving, by the second network device, the second message sent by the first network device, where the second message carries the updated information collected by the first network device;

The second network device extracts the updated information from the second message;

And the second network device uses the updated information to update the saved information that meets the information identifier of the second network device.

With reference to the second aspect of the embodiment of the present invention or the first implementation manner of the second aspect, in the second implementation manner of the second aspect of the embodiment of the present disclosure, the information that meets the information identifier of the second network device includes: : information conforming to the type of information supported by the second network device, or information satisfying the information requirement of the second network device.

With reference to the second aspect of the embodiment of the present invention or the first implementation manner of the second aspect, in a third implementation manner of the second aspect of the embodiment, the message type further includes a push message, where the push message is A one-way message, the second network device does not need to reply to the response message after receiving the push message, and the first message belongs to the push message.

With reference to the first implementation manner of the second aspect of the embodiment of the present invention, in a fourth implementation manner of the second aspect of the embodiment, the message type further includes a push message, where the push message is a one-way The message that the second network device does not need to reply to the response message after receiving the push message, where the first message and the second message belong to the push message.

With reference to the third implementation manner of the second aspect of the embodiment of the present invention or the fourth implementation manner of the second aspect, in the fifth implementation manner of the second aspect of the embodiment of the present disclosure, the specific protocol is an extended network configuration Netconf. The protocol message is a remote procedure call request message rpc in the Netconf protocol, the response message is a remote procedure call response message rpc-reply in the Netconf protocol, and the extended Netconf protocol includes a remote procedure call. Pushing the message rpc-push, the push message is the rpc-push.

With reference to the fifth implementation manner of the second aspect of the embodiment of the present invention, in a sixth implementation manner of the second aspect of the embodiment, the rpc-push includes the rpc-push namespace and the rpc- Push the specific information content to be published.

With reference to the second aspect of the embodiment of the present invention or the first implementation manner of the second aspect, in the seventh implementation manner of the second aspect of the embodiment, the operation type supported by the request message includes: a publishing operation, the publishing operation may enable the second network device to save the information in the request message carrying the publishing operation after receiving the request message carrying the publishing operation; the first message belongs to the carrying The request message for the release operation.

With reference to the first implementation manner of the second aspect of the embodiment of the present invention, in an eighth implementation manner of the second aspect of the embodiments, the operation type supported by the request message includes a publishing operation, and the publishing operation enables the After receiving the request message carrying the publishing operation, the second network device saves the information in the request message carrying the publishing operation; the first message and the second message belong to the request carrying the publishing operation Message.

With reference to the seventh implementation manner of the second aspect of the embodiment of the present invention or the eighth implementation manner of the second aspect, in the ninth implementation manner of the second aspect of the embodiment, the method further includes:

The second network device sends a third message to the first network device, where the third message is a response message that the second network device responds to at least two request messages carrying the issuing operation.

With reference to the ninth implementation manner of the second aspect of the embodiment of the present invention, in the tenth implementation manner of the second aspect of the embodiment, the response message that responds to at least two request messages carrying the publishing operation This includes: at least two message numbers carrying request messages for the publish operation.

With reference to the tenth implementation manner of the second aspect of the embodiments of the present disclosure, in the eleventh implementation manner of the second aspect of the embodiments of the present disclosure, the specific protocol is configured as an extended network configuration Netconf protocol, and the response message is Extended rpc-reply in the extended Netconf protocol, the extended rpc-reply includes at least two message numbers carrying request messages for the publish operation.

With reference to the second aspect of the second aspect of the present invention, the implementation of the eleventh implementation manner of the second aspect, the second implementation manner of the second aspect of the embodiment of the present invention, The information of the information identifier of the network device includes: topology information of the network, routing information of the network, performance information of the network, status information of the network device, and statistical information of the network device; or configuration information, policy information, and demand information. At least one of them.

A third aspect of the embodiments of the present invention provides a network device, which is used as a first network device, where the first network device and the second network device both support a specific protocol, and the specific protocol is a control management protocol. Having a hierarchical structure comprising at least a message layer and a content layer, the message layer being used to define a message type that implements protocol interaction, and the message type includes request cancellation And the content layer is used to define data and information that the protocol needs to transmit and interact, the message layer and the content layer are independent of each other, and the first network device includes:

a collection module for collecting information in the network;

Establishing a module, configured to establish a session with the second network device by using the specific protocol, and obtain an information identifier of the second network device in the session establishment process;

The first sending module is configured to: when the information collected by the collecting module meets the information identifier, do not need to first receive the information request that is sent by the second network device, and send the first message to the second network device. The first message carries the information that is collected by the collecting module and meets the information identifier of the second network device, and the information request indicates that the information that meets the information identifier is obtained.

With reference to the third aspect of the embodiments of the present invention, in a first implementation manner of the third aspect of the embodiment, the collecting module is further configured to: when determining to be carried in the first message sent to the second network device Collect updated information when information needs to be updated;

The first sending module is further configured to: send a second message to the second network device, where the second message carries the updated information collected by the collecting module.

With reference to the third aspect of the embodiment of the present invention or the first implementation manner of the third aspect, in the second implementation manner of the third aspect of the embodiment, the information identifier is used to indicate that the second network device supports Type of information;

The first sending module is specifically configured to: when the information collected by the collecting module meets the information type supported by the second network device, do not need to first receive the information request submitted by the second network device, and actively report to the The second network device sends a first message, where the first message carries information collected by the collection module that conforms to the type of information supported by the second network device.

With reference to the third aspect of the embodiment of the present invention or the first implementation manner of the third aspect, in a third implementation manner of the third aspect of the embodiment, the information identifier is used to indicate information about the second network device. demand;

The first sending module is specifically configured to: when the information collected by the collecting module meets the information requirement of the second network device, do not need to first receive the information request that is sent by the second network device, and actively send the information to the first The second network device sends a first message, where the first message carries information collected by the collection module that satisfies the information requirement of the second network device.

In conjunction with the third aspect of the embodiments of the present invention or the first implementation of the third aspect, the present invention In a fourth implementation manner of the third aspect, the message type further includes a push message, where the push message is a one-way message, and the second network device does not need to receive the push message. Replying to a reply message, the first message belongs to the push message.

With reference to the first implementation manner of the third aspect of the embodiments of the present invention, in a fifth implementation manner of the third aspect, the message type further includes a push message, where the push message is a one-way The message that the second network device does not need to reply to the response message after receiving the push message, where the first message and the second message belong to the push message.

With reference to the fourth implementation manner of the third aspect of the embodiment of the present invention or the fifth implementation manner of the third aspect, in the sixth implementation manner of the third aspect of the embodiment of the present invention, the specific protocol is an extended network configuration Netconf. The protocol message is a remote procedure call request message rpc in the Netconf protocol, the response message is a remote procedure call response message rpc-reply in the Netconf protocol, and the extended Netconf protocol includes a remote procedure call. Pushing the message rpc-push, the push message is the rpc-push.

With reference to the sixth implementation manner of the third aspect of the embodiment of the present invention, in a seventh implementation manner of the third aspect of the embodiment, the rpc-push includes the rpc-push namespace and the rpc- Push the specific information content to be published.

With reference to the third aspect of the embodiment of the present invention or the first implementation manner of the third aspect, in the eighth implementation manner of the third aspect of the embodiment, the operation type supported by the request message includes a publishing operation, and the publishing The operation may enable the second network device to save the information in the request message carrying the publishing operation after receiving the request message carrying the publishing operation; the first message belongs to the request message carrying the publishing operation.

With reference to the first implementation manner of the third aspect of the embodiments of the present disclosure, in a ninth implementation manner of the third aspect of the embodiments, the operation type supported by the request message includes a publishing operation, and the publishing operation enables the After receiving the request message carrying the publishing operation, the second network device saves the information in the request message carrying the publishing operation; the first message and the second message belong to the request carrying the publishing operation Message.

With reference to the eighth implementation manner of the third aspect of the embodiment of the present invention or the ninth implementation manner of the third aspect, in the tenth implementation manner of the third aspect of the embodiment, the first network device further includes:

a first receiving module, configured to receive a third message sent by the second network device, where the The three message is a response message that the second network device responds to at least two request messages carrying the issuing operation.

With reference to the tenth implementation manner of the third aspect of the embodiments of the present invention, in the eleventh implementation manner of the third aspect of the embodiments of the present invention, the response to the at least two request messages carrying the publishing operation is The message includes: at least two message numbers carrying request messages for the publishing operation.

With reference to the eleventh implementation manner of the third aspect of the embodiments of the present invention, in a twelfth implementation manner of the third aspect of the embodiments, the specific protocol is an extended network configuration Netconf protocol, and the response message is An extended rpc-reply in the extended Netconf protocol, the extended rpc-reply includes at least two message numbers carrying request messages for issuing operations.

With reference to any one of the implementation manners of the eighth implementation manner of the third aspect of the embodiments of the present invention to the twelfth implementation manner of the third aspect, the specific protocol is configured to configure the Netconf protocol for the extended network, where the request message is The extended rpc in the extended Netconf protocol, the extended rpc including the publishing operation.

With reference to any one of the thirteenth implementation manners of the third to third aspects of the embodiments of the present invention, the information collected by the collection module in the fourteenth implementation manner of the third aspect of the embodiments of the present invention The method includes: at least one of network topology information, network routing information, network performance information, network device status information, and network device statistics; or at least one of configuration information, policy information, and requirement information.

A fourth aspect of the present invention provides a network device, which is used as a second network device, where the first network device and the second network device both support a specific protocol, and the specific protocol is a control management protocol. Having a hierarchical structure comprising at least a message layer and a content layer, the message layer is used to define a message type for implementing protocol interaction, the message type includes a request message and a response message, and the content layer is used to define a protocol that needs to be transmitted and The data and information of the interaction, the message layer and the content layer are independent of each other, and the second network device comprises:

a second receiving module, configured to: after the second network device and the first network device establish a session by using the specific protocol, do not need to first send an information request to the first network device, directly receiving the first a first message sent by the network device, where the first message carries information that is collected by the first network device and that meets the information identifier of the second network device, where the information request indicates that the Information of the information identification of the network device;

An extracting module, configured to extract, from the first message received by the second receiving module, the information that meets the information identifier of the second network device;

And a saving module, configured to save information that is extracted by the extraction module and meets the information identifier of the second network device.

With reference to the fourth aspect of the embodiments of the present invention, in a first implementation manner of the fourth aspect, the second receiving module is further configured to receive a second message that is sent by the first network device, The second message carries the updated information collected by the first network device;

The extracting module is further configured to: extract the updated information from the second message;

The second network device further includes:

And an update module, configured to update, by using the updated information extracted by the extraction module, the saved information that meets the information identifier of the second network device.

With reference to the fourth aspect of the embodiment of the present invention or the first implementation manner of the fourth aspect, in the second implementation manner of the fourth aspect of the embodiment, the information that meets the information identifier of the second network device includes: : information conforming to the type of information supported by the second network device, or information satisfying the information requirement of the second network device.

With reference to the fourth aspect of the embodiment of the present invention or the first implementation manner of the fourth aspect, in a third implementation manner of the fourth aspect of the embodiments, the message type further includes a push message, where the push message is A one-way message, the second network device does not need to reply to the response message after receiving the push message, and the first message belongs to the push message.

With reference to the first implementation manner of the fourth aspect of the embodiments of the present invention, in a fourth implementation manner of the fourth aspect, the message type further includes a push message, where the push message is a one-way The message that the second network device does not need to reply to the response message after receiving the push message, where the first message and the second message belong to the push message.

With reference to the third implementation manner of the fourth aspect of the embodiment of the present invention or the fourth implementation manner of the fourth aspect, in the fifth implementation manner of the fourth aspect of the embodiments of the present disclosure, the specific protocol is an extended network configuration Netconf. The protocol message is a remote procedure call request message rpc in the Netconf protocol, the response message is a remote procedure call response message rpc-reply in the Netconf protocol, and the extended Netconf protocol includes a remote procedure call. Pushing the message rpc-push, the push message is the rpc-push.

With reference to the fifth implementation manner of the fourth aspect of the embodiments of the present invention, the fourth party of the embodiment of the present invention In a sixth implementation manner, the rpc-push includes the rpc-push namespace and the specific information content to be advertised by the rpc-push.

With reference to the fourth aspect of the embodiment of the present invention or the first implementation manner of the fourth aspect, in a seventh implementation manner of the fourth aspect of the embodiments, the operation type supported by the request message includes a publishing operation, and the publishing The operation may enable the second network device to save the information in the request message carrying the publishing operation after receiving the request message carrying the publishing operation; the first message belongs to the request message carrying the publishing operation.

With reference to the first implementation manner of the fourth aspect of the embodiments of the present invention, in an eighth implementation manner of the fourth aspect of the embodiments, the operation type supported by the request message includes a publishing operation, and the publishing operation enables the After receiving the request message carrying the publishing operation, the second network device saves the information in the request message carrying the publishing operation; the first message and the second message belong to the request carrying the publishing operation Message.

With reference to the seventh implementation manner of the fourth aspect of the embodiment of the present invention or the eighth implementation manner of the fourth aspect, in the ninth implementation manner of the fourth aspect of the embodiment, the second network device further includes:

The second sending module is configured to send a third message to the first network device, where the third message is a response message that the second network device responds to at least two request messages carrying the publishing operation.

With reference to the ninth implementation manner of the fourth aspect of the embodiments of the present invention, in the tenth implementation manner of the fourth aspect of the embodiments of the present invention, the response message that responds to at least two request messages carrying the publishing operation This includes: at least two message numbers carrying request messages for the publish operation.

With reference to the tenth implementation manner of the fourth aspect of the embodiments of the present invention, in the eleventh implementation manner of the fourth aspect of the embodiments of the present disclosure, the specific protocol is an extended network configuration Netconf protocol, and the response message is Extended rpc-reply in the extended Netconf protocol, the extended rpc-reply includes at least two message numbers carrying request messages for the publish operation.

With reference to any one of the implementation manners of the fourth aspect to the fourth aspect of the present invention, in a twelfth implementation manner of the fourth aspect, The information of the information identifier of the network device includes: topology information of the network, routing information of the network, performance information of the network, status information of the network device, and statistics of the network device. One less; or, at least one of configuration information, policy information, and demand information.

A fifth aspect of the embodiments of the present invention provides an information sending system, including:

The network device used as the first network device provided by any one of the implementation manners of the fourth aspect to the fourteenth aspect of the present invention, and the fourth to fourth aspects of the embodiment of the present invention A network device used as a second network device provided by any one of the twelfth implementations.

As can be seen from the foregoing technical solutions, the embodiment of the present invention has the following advantages: when the information collected by the first network device supporting the specific protocol in the embodiment of the present invention conforms to the information identifier of the second network device, the first network device does not need to be first. Receiving the information request from the second network device, and actively sending the first message to the second network device that also supports the specific protocol, where the first message carries the second network device that is collected by the first network device. Information identifies the information. The specific protocol has a hierarchical structure, at least a message layer and a content layer, the message layer and the content layer are independent of each other, and the message layer includes a request response message mechanism. In the scenario of supporting the first protocol, the information collected by the first network device does not need to wait for the request message from the second network device to send the collected information every time after collecting the information. The time when the collected information is sent out, and the second network device does not need to reply to the response message after receiving the first message, which saves the information processing flow and improves the first network device and the second network device supporting the specific protocol. The efficiency of processing information in this large and frequently changing information update scenario.

DRAWINGS

FIG. 1 is a schematic flowchart of a message sending method according to an embodiment of the present invention;

2 is a schematic flowchart of another method for sending a message according to an embodiment of the present invention;

3 is a schematic flowchart of another method for sending a message according to an embodiment of the present invention;

4 is another schematic flowchart of a message sending method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a network device used as a first network device according to an embodiment of the present disclosure;

FIG. 6 is another schematic structural diagram of a network device used as a first network device according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a network device used as a second network device according to an embodiment of the present invention;

FIG. 8 is another schematic structural diagram of a network device used as a second network device according to an embodiment of the present invention;

FIG. 9 is another schematic structural diagram of a network device used as a second network device according to an embodiment of the present invention;

FIG. 10 is another schematic structural diagram of a network device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention.

Control Management Protocol: A communication protocol used to exchange control, data, and status information of a network between network entities to implement control and management of the network.

The message layer and the content layer are independent of each other: any data described by the content layer can be carried by any type of message, and there is no limitation that a certain data content can only be carried by a certain message type.

It can be understood that, in the embodiment of the present invention, the message sending method includes two execution entities: a first network device as an information sender, and a second network device as an information receiver.

It should be noted that, in the embodiments of the present invention, the first network device and the second network device both support a specific protocol, and the specific protocol is a control management protocol, and has a hierarchical structure including at least a message layer and a content layer. The message layer is used to define a message type that implements protocol interaction. The message type includes a request message and a response message. The content layer is used to define data and information that the protocol needs to transmit and interact. The message layer and the content layer are independent of each other.

The message sending method in the embodiment of the present invention is described below from the perspective of the two executive bodies:

First, the executive body is the first network device:

Referring to FIG. 1, an embodiment of a message sending method in an embodiment of the present invention includes:

101. The first network device collects information in the network.

The first network device supporting the particular protocol collects information in the network.

It can be understood that the first network device can collect required information in the network according to a specific rule, and the specific rule and the required information may be specifically according to a network environment in which the first network device is located and the first network device is The responsibilities in the network vary, and are not limited here.

102. The first network device establishes a session with the second network device by using a specific protocol, and obtains the information identifier of the second network device during the session establishment process.

In this step, according to the requirements of the second network device, in the process of establishing a session between the first network device and the second network device, the information identifier of the second network device is obtained.

It can be understood that the first network device may have a communication connection with the plurality of network devices, and the second network device may only be one of the devices that establish a communication connection with the first network device, and therefore, the first network device collects The information may be more than the information sent to the second network device, the information that meets the information identifier of the second network device may be sent to the second network device, and the collected additional information may be sent to the other and the first The network device establishes a communication connection device, which is not limited herein.

Optionally, the information identifier may indicate the type of information supported by the second network device, that is, the type of information that the first network device can obtain by the second network device, indicating that the first network device needs to match the collected information. The information of the information type supported by the second network device is sent to the second network device;

Optionally, the information identifier may represent the information requirement of the second network device, that is, the information obtained by the first network device may also be the information requirement of the second network device, indicating that the first network device does not need to collect the collected information. All the information that meets the information type supported by the second network device is sent to the second network device, and only the information that meets the information requirement of the second network device needs to be sent to the second network device.

103. When the information collected by the first network device meets the information identifier, the first network device does not need to first receive the information request sent by the second network device, and actively sends the information to the second network device. A message, the first message carries information that is collected by the first network device and that meets the information identifier.

After the first network device collects the information and obtains the information identifier of the second network device, when the information collected by the first network device meets the information identifier of the second network device, the first network device The device does not need to receive the information request from the second network device, and sends a first message to the second network device, where the first message carries the second network device that is collected by the first network device. Information identifying information, wherein the information request indicates obtaining information conforming to the information identifier of the second network device.

In this step, the triggering condition that the first network device sends the first message to the second network device is that the information collected by the first network device meets the information identifier of the second network device, and specifically, according to different information identifiers, Divided into: 1. The information identifier is used to indicate the type of information supported by the second network device, and when the information collected by the first network device meets the information type supported by the second network device, The second network device sends a first message, where the first message carries information that is collected by the first network device and meets the type of information supported by the second network device; 2. the information identifier is used to indicate The information request of the second network device is: when the information collected by the first network device meets the information requirement of the second network device, the first message is sent to the second network device, the first The message carries the information collected by the first network device that meets the information requirement of the second network device.

It should be noted that the foregoing sending the first message to the second network device is performed, except that the trigger condition is met, and in addition, in order to reduce the number of times of information transmission, a preset time period may also be defined, and the trigger condition may be The first message is sent to the second network device directly, and is not limited herein.

In the embodiment of the present invention, when the information collected by the first network device that supports the specific protocol meets the information identifier of the second network device, the first network device does not need to receive the information request from the second network device first, and the active support is also supported. The second network device of the specific protocol sends a first message, where the first message carries the information collected by the first network device that meets the information identifier of the second network device. The specific protocol has a hierarchical structure, at least a message layer and a content layer, the message layer and the content layer are independent of each other, and the message layer includes a request response message mechanism. In the scenario of supporting the first protocol, the information collected by the first network device does not need to wait for the request message from the second network device to send the collected information every time after collecting the information. The time when the collected information is sent out, and the second network device does not need to reply to the response message after receiving the first message, which saves the information processing flow and improves the first network device and the second network device supporting the specific protocol. The efficiency of processing information in this large and frequently changing information update scenario.

In a practical application, after the first network device sends, to the second network device, the first message that carries the information that is collected by the first network device and meets the information identifier of the second network device, if the first network device determines to send to the first The information of the network device needs to be updated, and the second message may be sent to the second network device, where the second message carries the updated information. Referring to FIG. 2, another embodiment of the message sending method in the embodiment of the present invention is shown. include:

201. The first network device collects information in the network.

202. The first network device and the second network device establish a session by using a specific protocol, and obtain the information identifier of the second network device in the session establishment process.

203. When the information collected by the first network device meets the information identifier, the first network device does not need to first receive the information request that is sent by the second network device, and sends the first to the second network device. a message, the first message carrying information that is collected by the first network device and that meets the information identifier;

Steps 201 to 203 are similar to steps 101 to 103, and are not described herein.

204. When the first network device determines that information carried in the first message sent to the second network device needs to be updated, the first network device collects updated information.

After the first network device sends the first message to the second network device, when the first network device determines that the information carried in the first message sent to the second network device needs to be updated, the first network device collects the updated information. .

It can be understood that the first network device determines that the information carried in the first message sent to the second network device needs to be updated, and the first network device may actively detect the information sent to the second network device. If there is an update, the first network device information may be notified by the information source that communicates with the first network device, which is not limited herein.

205. The first network device sends a second message to the second network device, where the second message carries the updated information collected by the first network device.

After collecting the updated information, the first network device does not need to wait for the second network device to send an information request, and directly sends a second message to the second network device, where the second message carries the information collected by the first network device. Updated information.

In this embodiment, when the first network device determines that the information carried in the first message sent to the second network device needs to be updated, the information that can be collected and updated is carried in the second message and then sent to the second network device, and the The second network device obtains the latest information in time.

In the above embodiment, the first network device supporting the specific protocol may directly send a message to the second network device, where the message type of the specific protocol includes a request message and a response message. In an actual application, the specific protocol may be a type of The newly defined protocol can also be obtained by extending a message type in the message type of the existing protocol, and can also be obtained by extending the type of operation supported by the request message in the existing protocol, which is not limited herein.

1. Extend a message type in the message type of an existing protocol:

As another embodiment of the message sending method in the embodiment of the present invention, the message type of the specific protocol further includes a push message, where the push message is a one-way message, and the second network device does not need to reply after receiving the push message. The response message, in the foregoing embodiment, the first message and the second message belong to the push message.

Optionally, as another embodiment of the message sending method in the embodiment of the present invention, the specific protocol may be an extension performed on a network configuration Netconf protocol, that is, the specific protocol may be an extended Netconf protocol, and the specific protocol may be The request message is the remote procedure call request message rpc in the Netconf protocol, and the response message in the specific protocol is the remote procedure call response message rpc-reply in the Netconf protocol, and the extended Netconf protocol also includes a remote procedure call. The push message rpc-push, the push message described in the above embodiment may be the rpc-push. It can be understood that, in practical applications, in addition to using a push message, or rpc-push, other names may be used as the name of the newly added message type, which is not limited herein.

It should be noted that the Netconf protocol satisfies the characteristics of the specific protocol. Specifically, the Netconf protocol is a network configuration protocol defined by the IETF RFC6241, which is mainly used for writing and reading the configuration of the network device. The Netconf protocol is divided into the following four layers:

Content layer: including configuration information and notification information, the specific content is defined using the Yang modeling language;

Operation layer: defines a series of protocol operations for netconf to edit and obtain configuration and configuration information;

Message layer: adopts XML-encoded message format. The defined message types include rpc request message and rpc-reply message for implementing request-response, and notification message for event notification;

Transport layer: A variety of reliable transport protocols, such as SSH, TLS, etc., can be used.

Optionally, as another embodiment of the message sending method in the embodiment of the present invention, the rpc-push The rpc-push namespace and the specific information content to be published by the rpc-push are included. The rpc-push namespace is used to indicate the specific location of the rpc-push definition in the protocol. In the embodiment of the present invention, the specific information content to be advertised by the rpc-push is the information carried in the first message or the information carried in the second message.

The rpc-push can be defined in a variety of formats, as an example:

Among them, <rpc-push xmlns="urn:ietf:params:xml:ns:netconf:base:x.x"> is used to represent the rpc-push namespace, <push-info><! – The specific information content to be published --></push-info> is used to indicate the specific information content to be published by the rpc-push.

Extending the existing protocol in this way does not require modification of the request message and the reply message in the existing protocol, and only needs to add a new message type to obtain the specific protocol.

2. Extend the types of operations supported by the request message in the existing protocol:

As another embodiment of the message sending method in the embodiment of the present invention, the operation type supported by the request message in the specific protocol includes a publishing operation, and the publishing operation enables the second network device to save and carry the request message carrying the publishing operation. The information in the request message of the publishing operation; in the foregoing embodiment, the first message and the second message belong to the request message carrying the publishing operation.

The existing protocol is extended by the type of operation supported by the extended request message. Since the first network device sends the request message, the second network device must reply the response message to the request message according to the protocol of the request response mechanism. Answer it.

It should be noted that when replying to the request message carrying the publishing operation, an existing response message may be used, that is, a response message is replied to each request message; the response message may also be extended, optionally As another embodiment of the message sending method in the embodiment of the present invention, the first network device may receive the third message sent by the second network device, where the third message is that the second network device carries at least two of the publishing operations. Request message to respond Answer the message. That is, the extended response message can respond to multiple request messages carrying the publishing operation at one time, thereby reducing the overhead caused by sending the response message.

It can be understood that the extended request message can be the same as the existing request message in the message format, but when the operation type is selected, the extended publishing operation can be carried in the request message, so that the received publishing operation is received. The second network device of the request message saves the information carried in the request message.

The extended response message is responsive to the at least two request messages carrying the advertised operation, and the response message may carry the message number of the at least two request messages carrying the advertised operation, and may also carry the OK field.

Optionally, the specific protocol may be an extension of the Netconf protocol configured on the network, that is, the specific protocol may be an extended Netconf protocol, where the response message may be an extended rpc-reply in the extended Netconf protocol, where The extended rpc-reply includes at least two message numbers carrying request messages for the publish operation.

Optionally, in the foregoing embodiment, the specific protocol may be an extension based on a network configuration Netconf protocol, where the specific protocol may be an extended Netconf protocol, where the request message is an extended rpc in the extended Netconf protocol, The extended rpc includes the publish operation. In actual applications, the advertised operation may use advertise as the name, and other names may be used, which are not limited herein.

The following example illustrates a message format for extended rpc and extended rpc-reply:

The format of the extended rpc can be as follows:

Where <advertise/> means that the rpc carries the publishing operation.

The format of the extended rpc-reply can be as follows:

The message numbers carrying the three request messages carrying the advertise operation are 98, 99, and 100, respectively.

It can be understood that, in the above embodiments, the information collected by the first network device may be different according to different application scenarios of the first network device and the second network device, for example, in the I2RS scenario, the first network device is an agent agent, When the network device is the controller client, the information collected by the first network device may include: at least network topology information, network routing information, network performance information, network device status information, network device statistics, and the like. The first network device is a client, and the information collected by the first network device may include at least one of configuration information, policy information, and demand information.

Second, the executive body is the second network device:

Referring to FIG. 3, another embodiment of the message sending method in the embodiment of the present invention includes:

301. After the second network device establishes a session with the first network device by using a specific protocol, the second network device does not need to first send an information request to the first network device, and directly receives the first information sent by the first network device. a message, the first message carrying information that is collected by the first network device and conforms to the information identifier of the second network device;

It should be noted that the information request indicates that the information that meets the information identifier of the second network device is obtained.

In this step, according to the information identifier of the second network device, the information that meets the information identifier of the second network device may be information that meets the information type supported by the second network device, or may satisfy the foregoing. Information about the information needs of the network device.

It can be understood that, when the second network device establishes a session with the first network device by using a specific protocol, the information type supported by the second network device or the information requirement of the second network device may be used as the second network device. The information identifier is notified to the first network device.

302. The second network device extracts the information that meets the information identifier of the second network device from the first message.

After receiving the first message sent by the first network device, the second network device extracts information corresponding to the information identifier of the second network device from the first message.

303. The second network device saves the information that meets the information identifier of the second network device.

After the second network device extracts the information that meets the information identifier of the second network device, the information that meets the information identifier of the second network device is saved.

In the embodiment of the present invention, the second network device does not need to first send an information request to the first network device, directly receives the message sent by the first network device, and saves the information in the message, and does not need to reply to the response message. Greatly improve the efficiency of interaction between devices.

In a practical application, the second network device may further receive a message that is sent by the first network device and that carries the updated information. Referring to FIG. 4, another embodiment of the method for sending a message in the embodiment of the present invention includes:

401. After the second network device establishes a session with the first network device by using a specific protocol, the second network device does not need to first send an information request to the first network device, and directly receives the first information sent by the first network device. a message, the first message carrying information that is collected by the first network device and conforms to the information identifier of the second network device;

402. The second network device extracts the information that meets the information identifier of the second network device from the first message.

403. The second network device saves the information that meets the information identifier of the second network device.

Steps 401 to 403 are similar to steps 301 to 303, and are not described herein.

404. The second network device receives the second message sent by the first network device, where the second message carries the updated information collected by the first network device.

After the second network device saves the information carried in the first message, the second network device may also receive the second message sent by the first network device, where the second message carries the updated information collected by the first network device.

It can be understood that the updated information is information for updating information that the first network device has sent to the second network device.

405. The second network device extracts the updated information from the second message.

The second network device extracts the updated information from the received second message.

406. The second network device uses the updated information to update the saved information that meets the information identifier of the second network device.

After extracting the updated information, the second network device uses the updated information to update the saved information that meets the information identifier of the second network device.

In this embodiment, the second network device may receive the second message carrying the updated information, and extract the updated message to update the saved information that meets the information identifier of the second network device, thereby ensuring real-time information. Sex.

In the above embodiment, the second network device supporting the specific protocol may receive the message sent by the first network device and save the information in the message if the request information is not initiated. In an actual application, the specific protocol may be one. The newly defined protocol can also be obtained by extending a message type in the message type of the existing protocol, and can also be obtained by extending the type of operation supported by the request message in the existing protocol, which is not limited herein.

1. Extend a message type in the message type of an existing protocol:

The specific extension manner is the same as the two extension manners in the foregoing embodiment, and details are not described herein.

It can be understood that the method of the present invention can be applied to multiple scenarios. In addition to the I2RS scenario, it can also be used for interaction of control information between multiple controllers in an SDN network, and can also be used for control between network devices. Information interaction and the like are not limited herein.

For ease of understanding, the following describes the method for sending a message in the embodiment of the present invention from the interaction process between the first network device and the second network device in two extension manners, in combination with a specific application scenario:

1. Extend a message type in the message type of an existing protocol:

In the Netconf protocol, a new message mechanism called "rpc-push" is defined, and the existing rpc and rpc-reply messages are used by a node to publish the collected nodes of the node to the peer node with which the Netconf session is established. Information to be updated, the "rpc-push" message is a one-way message that can be initiated by either party to the Netconf session, and the recipient does not need to reply to any response message;

In the I2rs scenario, after the Netconf session is established, the network device (the first network device) It is necessary to quickly release a large amount of information collected by itself to the network controller (second network device). At this time, the network device can use rpc-push to send the information to be released to the network controller in one direction without waiting for the network controller to propose. After receiving the rpc-push, the network controller saves the information carried in the rpc-push in the corresponding database, and the network controller does not need to respond to the rpc-push;

When the network device finds that a part of the information previously issued to the network controller is updated, the network device sends the updated information to the network controller by using rpc-push, and the network controller uses the update information in the message after receiving the rpc-push. To replace stale information in the database, the network controller does not need to respond to rpc-push.

In the Netconf protocol, a new type of operation is defined for rpc, which can be called "advertise". It is used by a node to actively publish the information collected by the node or needs to be updated to the peer node that established the Netconf session, and define one at the same time. A new rpc-reply mechanism that allows multiple rpcs to be answered with one rpc-reply, thereby reducing the overhead of rpc-reply;

In the I2rs scenario, after the Netconf session is established, the network device (the first network device) needs to quickly release a large amount of information collected by the device to the network controller (the second network device). In this case, the network device can use the rpc carrying the advertise operation. The information to be advertised is sent to the network controller in one direction, without waiting for the network controller to make any request, and after receiving the rpc carrying the advertise operation, the network controller saves the information in the corresponding database;

The network controller does not need to respond to rcp-reply for each rpc carrying the advertise operation. It can package multiple rpc-reply packets with advertised rpc. The rpc-reply of the response needs to carry the id of all rpcs that are responded. And carry the <ok> field;

When the network device finds that a part of the information previously issued to the network controller is updated, the network device sends the updated information to the network controller by using the rpc carrying the advertise operation; the network controller uses the message after receiving the rpc carrying the advertise operation. The update information in the database replaces the stale information in the database. The network controller does not need to respond to rcp-reply for each rpc carrying the advertise operation, and can package multiple rpc-reply responses to the rpc with the advertise operation. -reply needs to carry the id of all rpcs that are responded, and carry the <ok> field.

The following describes the network device in the embodiment of the present invention, where the network device is used in the embodiment of the present invention. Both support the above specific protocols.

1. Network equipment used as the first network device:

Referring to FIG. 5, an embodiment of a network device used as a first network device in the embodiment of the present invention includes:

The collecting module 501 is configured to collect information in the network;

The establishing module 502 is configured to establish a session with the second network device by using the specific protocol, and obtain an information identifier of the second network device in the session establishment process;

The first sending module 503 is configured to: when the information collected by the collecting module 501 meets the information identifier, do not need to first receive the information request by the second network device, and send the first to the second network device. And the information that is collected by the collecting module 501 and that meets the information identifier of the second network device, where the information request indicates that the information that meets the information identifier is obtained.

In the embodiment of the present invention, when the information collected by the collecting module 501 in the first network device that supports the specific protocol is in accordance with the information identifier of the second network device, the first sending module 503 is not required to receive the information request from the second network device. Sending a first message to the second network device that also supports the specific protocol, where the first message carries information that is collected by the first network device and that meets the information identifier of the second network device. The specific protocol has a hierarchical structure, at least a message layer and a content layer, the message layer and the content layer are independent of each other, and the message layer includes a request response message mechanism. In the scenario of supporting the first protocol, the information collected by the first network device does not need to wait for the request message from the second network device to send the collected information every time after collecting the information. The time when the collected information is sent out, and the second network device does not need to reply to the response message after receiving the first message, which saves the information processing flow and improves the first network device and the second network device supporting the specific protocol. The efficiency of processing information in this large and frequently changing information update scenario.

In a practical application, after the first sending module 503 sends the first message that carries the information that is collected by the first network device and that meets the information identifier of the second network device, the first network device determines to send the first message to the second network device. The information of the second network device needs to be updated, and the second message may be sent to the second network device, where the updated information is carried in the second message. Optionally, another embodiment of the network device used as the first network device in the embodiment of the present invention:

The foregoing collecting module 501 is further configured to: when determining the first cancellation sent to the second network device Collect updated information when the information carried in the information needs to be updated;

The first sending module 503 is further configured to: send the second message to the second network device, where the second message carries the updated information collected by the collecting module 501.

In this embodiment, when the collecting module 501 determines that the information carried in the first message sent to the second network device needs to be updated, the first sending module 503 may carry the collected updated information in the second message and send the information to the second message. The second network device ensures that the second network device obtains the latest information in time.

It should be noted that the information identifier of the second network device may be multiple:

Optionally, as another embodiment of the network device used by the first network device in the embodiment of the present invention, the information identifier is used to indicate a type of information supported by the second network device;

The first sending module 503 is specifically configured to: when the information collected by the collecting module 501 meets the information type supported by the second network device, The second network device sends a first message, where the first message carries information collected by the collection module that meets the type of information supported by the second network device.

Optionally, as another embodiment of the network device used as the first network device in the embodiment of the present invention, the information identifier is used to indicate an information requirement of the second network device;

The first sending module 503 is specifically configured to: when the information collected by the collecting module 501 meets the information requirement of the second network device, do not need to first receive the information request submitted by the second network device, and actively The second network device sends a first message, where the first message carries information collected by the collection module that satisfies the information requirement of the second network device.

In the above embodiment, the message type of the specific protocol supported by the network device used by the first network device includes a request message and a response message. In an actual application, the specific protocol may be a newly defined protocol, or may be The extension of a message type in the message type of the existing protocol can also be obtained by extending the type of operation supported by the request message in the existing protocol, which is not limited herein.

1. Extend a message type in the message type of an existing protocol:

Similar to the specific extension manner of extending a message type in the message type of the existing protocol in the foregoing method embodiment, it is not limited herein.

Similar to the specific extension of the operation type supported by the request message in the existing protocol in the foregoing method embodiment, it is not limited herein.

If the specific protocol is extended in this way, the first network device can respond to the multiple request messages with a response message.

Optionally, referring to FIG. 6, as another embodiment of the network device used as the first network device in the embodiment of the present invention, the network device further includes:

The first receiving module 601 is configured to receive a third message sent by the second network device, where the third message is a response that the second network device responds to at least two request messages carrying the publishing operation. Message.

In this embodiment, the first receiving module 601 can receive a response message for responding to multiple request messages carrying the issuing operation, thereby reducing the overhead caused by sending and receiving the response message.

Optionally, as another embodiment of the network device used by the first network device in the embodiment of the present invention, the information collected by the collecting module 501 includes: network topology information, network routing information, network performance information, and network device. State information, at least one of network device statistics; or at least one of configuration information, policy information, and demand information.

2. Network equipment used as the second network device:

Referring to FIG. 7, an embodiment of a network device used as a second network device in the embodiment of the present invention includes:

The second receiving module 701 is configured to directly receive the information request to the first network device after the second network device establishes a session with the first network device by using the specific protocol. a first message sent by the network device, where the first message carries information that is collected by the first network device and that meets the information identifier of the second network device, where the information request indicates that the Information of the information identification of the second network device;

The extracting module 702 is configured to extract, according to the first message received by the second receiving module 701, the information that meets the information identifier of the second network device;

The saving module 703 is configured to save information that is extracted by the extraction module 702 and meets the information identifier of the second network device.

In the embodiment of the present invention, the second receiving module 701 does not need to first send an information request to the first network device, and directly receives the message sent by the first network device, and the saving module 703 is in the message. The information is saved and does not need to reply to the response message, which greatly improves the efficiency of interaction between devices.

In a practical application, the second receiving module 701 may further receive a message that is sent by the first network device and that carries the updated information. Referring to FIG. 8, the network device used as the second network device in the embodiment of the present invention is another. Example:

The second receiving module 701 is further configured to receive the second message sent by the first network device, where the second message carries the updated information collected by the first network device;

The foregoing extraction module 702 is further configured to: extract the updated information from the second message;

The network device also includes:

The update module 801 is configured to update, by using the updated information extracted by the extraction module 702, the saved information that meets the information identifier of the second network device.

In this embodiment, the second receiving module 701 can receive the second message carrying the updated information, the extracting module 702 extracts the updated message, and the updating module 801 performs the saved information that meets the information identifier of the second network device. Updates ensure the real-time nature of the information.

Optionally, the information that meets the information identifier of the second network device includes: information that meets the type of information supported by the second network device, or information that meets information requirements of the second network device.

In the above embodiment, the specific protocol supported by the network device used by the second network device may be a newly defined protocol, or may be obtained by extending a message type in a message type of an existing protocol, and may also be extended by There are types of operations supported by the request message in the protocol, which are not limited here.

1. Extend a message type in the message type of an existing protocol:

If the specific protocol is extended in this way, the second network device can send a response message to respond to the multiple request messages.

Optionally, please refer to FIG. 9 , which is used as the second network device in the embodiment of the present invention. Another embodiment of the network device, the network device further includes:

The second sending module 901 is configured to send a third message to the first network device, where the third message is a response message that the second network device responds to at least two request messages carrying the publishing operation. .

In this embodiment, the second sending module 901 can send a response message to respond to multiple request messages carrying the publishing operation at a time, thereby reducing the overhead caused by sending and receiving the response message.

Optionally, the foregoing information that meets the information identifier of the second network device may include: at least one of network topology information, network routing information, network performance information, network device status information, and network device statistics information. Or, at least one of configuration information, policy information, and demand information.

Please refer to FIG. 10 , which is a schematic structural diagram of a network device 1000. It can be understood that the network device shown in the schematic diagram can represent either a network device used as the first network device or a second network device. Network equipment, including:

The input device 1001, the output device 1002, the processor 1003, and the memory 1004 (wherein the number of processors 1003 in the network device 1000 may be one or more, and one processor 1003 in FIG. 10 is taken as an example). In some embodiments of the present invention, the input device 1001, the output device 1002, the processor 1003, and the memory 1004 may be connected by a bus or other means, wherein the connection through the bus is taken as an example in FIG.

When the network device shown in FIG. 10 represents a network device used as the first network device, both the first network device and the second network device support a specific protocol, and the specific protocol is a control management protocol, and has a a layer structure, comprising at least a message layer and a content layer, the message layer is used to define a message type for implementing protocol interaction, the message type includes a request message and a response message, and the content layer is used to define a protocol that needs to be transmitted and interacted. Data and information, the message layer and the content layer are independent of each other. The processor 1003 is configured to perform the following steps by calling an operation instruction stored in the memory 1004:

Collect information from the network;

Establishing a session with the second network device by using the specific protocol, and obtaining an information identifier of the second network device in the session establishment process;

When the collected information meets the information identifier, the second network device does not need to be received first. Sending, by the proposed information request, the first message to the second network device, where the first message carries the information that is collected by the collecting module and meets the information identifier of the second network device, where the information request Instructing to obtain the information that meets the information identifier;

In some embodiments of the present invention, the processor 1003 is further configured to perform the following steps:

Collecting updated information when it is determined that the information carried in the first message sent to the second network device needs to be updated;

The second message is sent to the second network device, and the second message carries the updated information collected by the collection module.

In some embodiments of the present invention, the information identifier is used to indicate the type of information supported by the second network device, and the processor 1003 is specifically configured to perform the following steps:

When the collected information meets the information type supported by the second network device, the information request from the second network device is not required to be received, and the first message is sent to the second network device, the first message. And carrying information collected by the collection module that meets the type of information supported by the second network device.

In some embodiments of the present invention, the information identifier is used to indicate the information requirement of the second network device, and the processor 1003 is specifically configured to perform the following steps:

When the collected information meets the information requirement of the second network device, the information request by the second network device is not required to be received, and the first message is sent to the second network device, where the first message is sent. And carrying information collected by the collection module that meets information requirements of the second network device.

In some embodiments of the present invention, the message type further includes a push message, where the push message is a one-way message, and the second network device does not need to reply to the response message after receiving the push message. The first message belongs to the push message.

In some embodiments of the present invention, the message type further includes a push message, where the push message is a one-way message, and the second network device does not need to reply to the response message after receiving the push message. Both the first message and the second message belong to the push message.

In some embodiments of the present invention, the specific protocol configures the Netconf protocol for the extended network, the request message is a remote procedure call request message rpc in the Netconf protocol, and the response message is a remote procedure call in the Netconf protocol. Responding to the message rpc-reply, the extended Netconf protocol includes a remote procedure call push message rpc-push, the push cancellation The information is the rpc-push.

In some embodiments of the present invention, the rpc-push includes the rpc-push namespace and the specific information content to be advertised by the rpc-push.

In some embodiments of the present invention, the operation type supported by the request message includes a publishing operation, and the publishing operation enables the second network device to save the carrying operation after receiving the request message carrying the publishing operation. Information in the request message; the first message belongs to a request message carrying the publishing operation.

In some embodiments of the present invention, the operation type supported by the request message includes a publishing operation, and the publishing operation enables the second network device to save the carrying operation after receiving the request message carrying the publishing operation. Information in the request message; both the first message and the second message belong to a request message carrying the publishing operation.

Receiving a third message sent by the second network device, where the third message is a response message that the second network device responds to at least two request messages carrying the issuing operation.

In some embodiments of the present invention, the response message that responds to the at least two request messages carrying the publishing operation includes: at least two message numbers carrying request messages for the publishing operation.

In some embodiments of the present invention, the specific protocol configures the Netconf protocol for the extended network, and the response message is an extended rpc-reply in the extended Netconf protocol, where the extended rpc-reply includes at least two carriers. The message number of the request message with the publish operation.

In some embodiments of the present invention, the specific protocol configures the Netconf protocol for the extended network, the request message is an extended rpc in the extended Netconf protocol, and the extended rpc includes the publishing operation.

In some embodiments of the present invention, the collected information includes: topology information of the network, routing information of the network, performance information of the network, status information of the network device, and at least one of statistical information of the network device; or, configuration information. At least one of policy information and demand information.

When the network device shown in FIG. 10 represents a network device used as the second network device, both the first network device and the second network device support a specific protocol, and the specific protocol is a control management protocol, and has a The layer structure includes at least a message layer and a content layer, and the message layer is used to define a message type that implements protocol interaction, and the message type includes a request message and a response cancellation. The content layer is used to define data and information that the protocol needs to transmit and interact. The message layer and the content layer are independent of each other. The processor 1003 is configured to execute by calling an operation instruction stored in the memory 1004. The following steps:

After the second network device and the first network device establish a session by using the specific protocol, do not need to first send an information request to the first network device, and directly receive the first message sent by the first network device. The first message carries the information that is collected by the first network device and meets the information identifier of the second network device, where the information request indicates that the information identifier corresponding to the second network device is obtained. information;

Extracting, from the received first message, the information that meets the information identifier of the second network device;

The extracted information that meets the information identifier of the second network device is saved.

Receiving a second message sent by the first network device, where the second message carries updated information collected by the first network device;

Extracting the updated information from the second message;

And updating the saved information that meets the information identifier of the second network device by using the extracted updated information.

In some embodiments of the present invention, the information that meets the information identifier of the second network device includes: information that meets the type of information supported by the second network device, or meets information requirements of the second network device. Information.

Sending a third message to the first network device, where the third message is a response message that the second network device responds to at least two request messages carrying the issuing operation.

In some embodiments of the present invention, the specific protocol configures the Netconf protocol for the extended network, the response message is an extended rpc-reply in the extended Netconf protocol, and the extended rpc-reply includes at least two The message number carrying the request message for the publish operation.

In some embodiments of the present invention, the information that meets the information identifier of the second network device includes: topology information of the network, routing information of the network, performance information of the network, status information of the network device, and statistical information of the network device. At least one of; or, at least one of configuration information, policy information, and demand information.

The information sending system in the embodiment of the present invention includes:

a network device used as the first network device shown in any one of FIG. 5, FIG. 6, or FIG. 10, and a network used as the second network device shown in any one of FIG. 7, FIG. 8, FIG. 9, or FIG. device.

It will be apparent to those skilled in the art that, for the convenience and brevity of the description, the specific working processes of the systems, devices and units described above may be referred to in the foregoing method embodiments. The corresponding process will not be described here.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

Claims

A method for transmitting information, characterized in that both the first network device and the second network device support a specific protocol, and the specific protocol is a control management protocol having a hierarchical structure including at least a message layer and a content layer, The message layer is used to define a message type that implements protocol interaction, and the message type includes a request message and a response message, and the content layer is used to define data and information that the protocol needs to transmit and interact, the message layer and the content layer. Independent of each other, the method includes:

The first network device collects information in the network;

The first network device and the second network device establish a session by using the specific protocol, and obtain an information identifier of the second network device in the session establishment process;

When the information collected by the first network device meets the information identifier, the first network device does not need to first receive the information request from the second network device, and sends a first message to the second network device. And the first message carries the information that is collected by the first network device that meets the information identifier, and the information request indicates that the information that meets the information identifier is obtained.
The method according to claim 1, wherein the step of actively sending the first message to the second network device further comprises:

When the first network device determines that information carried in the first message sent to the second network device needs to be updated, the first network device collects updated information;

The first network device sends a second message to the second network device, where the second message carries the updated information collected by the first network device.
The method according to claim 1 or 2, wherein the message type further comprises a push message, the push message is a one-way message, and after the second network device receives the push message There is no need to reply to a reply message, the first message belonging to the push message.
The method according to claim 3, wherein the specific protocol configures the Netconf protocol for the extended network, the request message is a remote procedure call request message rpc in the Netconf protocol, and the response message is the Netconf protocol. The remote procedure call response message rpc-reply, the extended Netconf protocol includes a remote procedure call push message rpc-push, and the push message is the rpc-push.
The method according to claim 1 or 2, wherein the operation type supported by the request message comprises a publishing operation, and the publishing operation enables the second network device to receive a request message carrying the publishing operation. And saving information in the request message carrying the publishing operation; the first message belongs to a request message carrying the publishing operation.
The method of claim 5, wherein the method further comprises:

The first network device receives a third message sent by the second network device, where the third message is a response message that the second network device responds to at least two request messages carrying the publishing operation.
The method according to claim 6, wherein the specific protocol configures the Netconf protocol for the extended network, and the response message is an extended rpc-reply in the extended Netconf protocol, and the extended rpc-reply Includes at least two message numbers carrying request messages for the publish operation.
The method according to any one of claims 5 to 7, wherein the specific protocol configures a Netconf protocol for an extended network, and the request message is an extended rpc in the extended Netconf protocol, the extension The publishing operation is included in the rpc.
A method for transmitting information, characterized in that both the first network device and the second network device support a specific protocol, and the specific protocol is a control management protocol having a hierarchical structure including at least a message layer and a content layer, The message layer is used to define a message type that implements protocol interaction, and the message type includes a request message and a response message, and the content layer is used to define data and information that the protocol needs to transmit and interact, the message layer and the content layer. Independent of each other, the method includes:

After the second network device and the first network device establish a session by using the specific protocol, the second network device does not need to first send an information request to the first network device, and directly receives the first network. a first message sent by the device, where the first message carries information that is collected by the first network device and that meets the information identifier of the second network device, where the information request indicates that the second Information identifying the information of the network device;

Extracting, by the second network device, the information that meets the information identifier of the second network device from the first message;

The second network device saves the information that meets the information identifier of the second network device.
The method according to claim 9, wherein the step of directly receiving the first message sent by the first network device further comprises:

Receiving, by the second network device, the second message sent by the first network device, where the second message carries the updated information collected by the first network device;

The second network device extracts the updated information from the second message;

And the second network device uses the updated information to update the saved information that meets the information identifier of the second network device.
The method according to claim 9 or 10, wherein the information conforming to the information identifier of the second network device comprises: information conforming to the type of information supported by the second network device, or Information about the information requirements of the second network device.
The method according to claim 9 or 10, wherein the message type further comprises a push message, the push message is a one-way message, and after the second network device receives the push message There is no need to reply to a reply message, the first message belonging to the push message.
The method according to claim 12, wherein the specific protocol configures the Netconf protocol for the extended network, the request message is a remote procedure call request message rpc in the Netconf protocol, and the response message is the Netconf protocol. The remote procedure call response message rpc-reply, the extended Netconf protocol includes a remote procedure call push message rpc-push, and the push message is the rpc-push.
The method according to claim 9 or 10, wherein the operation type supported by the request message comprises a publishing operation, and the publishing operation enables the second network device to receive a request message carrying the publishing operation. And saving information in the request message carrying the publishing operation; the first message belongs to a request message carrying the publishing operation.
The method of claim 14, wherein the method further comprises:

The second network device sends a third message to the first network device, where the third message is a response message that the second network device responds to at least two request messages carrying the issuing operation.
The method according to claim 15, wherein said specific protocol configures a Netconf protocol for an extended network, said response message being an extended rpc-reply in said extended Netconf protocol, said extended rpc-reply Including at least two carrying a release operation The message number of the request message.
A network device is used as the first network device, wherein the first network device and the second network device both support a specific protocol, where the specific protocol is a control management protocol, has a hierarchical structure, and includes at least a message layer and a content layer, the message layer is used to define a message type for implementing protocol interaction, the message type includes a request message and a response message, and the content layer is used to define data and information that the protocol needs to transmit and interact with, The message layer and the content layer are independent of each other, and the first network device includes:

a collection module for collecting information in the network;

Establishing a module, configured to establish a session with the second network device by using the specific protocol, and obtain an information identifier of the second network device in the session establishment process;

The first sending module is configured to: when the information collected by the collecting module meets the information identifier, do not need to first receive the information request that is sent by the second network device, and send the first message to the second network device. The first message carries the information that is collected by the collecting module and meets the information identifier of the second network device, and the information request indicates that the information that meets the information identifier is obtained.
The network device according to claim 17, wherein the collecting module is further configured to: when it is determined that information carried in the first message sent to the second network device needs to be updated, collect updated information;

The first sending module is further configured to: send a second message to the second network device, where the second message carries the updated information collected by the collecting module.
The network device according to claim 17 or 18, wherein the message type further comprises a push message, the push message is a one-way message, and the second network device receives the push message There is no need to reply to the reply message, the first message belongs to the push message.
The network device according to claim 19, wherein the specific protocol configures a Netconf protocol for the extended network, the request message is a remote procedure call request message rpc in the Netconf protocol, and the response message is the Netconf The remote procedure call response message rpc-reply in the protocol, the extended Netconf protocol includes a remote procedure call push message rpc-push, and the push message is the rpc-push.
A network device according to claim 17 or 18, wherein said request The operation type supported by the message includes a publishing operation, and the publishing operation enables the second network device to save the information in the request message carrying the publishing operation after receiving the request message carrying the publishing operation; The message belongs to a request message carrying the publishing operation.
The network device according to claim 21, wherein the first network device further comprises:

a first receiving module, configured to receive a third message sent by the second network device, where the third message is a response message that the second network device responds to at least two request messages carrying the publishing operation .
The network device according to claim 22, wherein the specific protocol configures the Netconf protocol for the extended network, and the response message is an extended rpc-reply in the extended Netconf protocol, the extended rpc-reply The message number of at least two request messages carrying the publishing operation is included.
The network device according to any one of claims 21 to 23, wherein the specific protocol is an extended network configuration Netconf protocol, and the request message is an extended rpc in the extended Netconf protocol, The publishing operation is included in the extended rpc.
A network device is used as the second network device, wherein the first network device and the second network device both support a specific protocol, where the specific protocol is a control management protocol, and has a hierarchical structure, at least a message layer and a content layer, the message layer is used to define a message type for implementing protocol interaction, the message type includes a request message and a response message, and the content layer is used to define data and information that the protocol needs to transmit and interact with, The message layer and the content layer are independent of each other, and the second network device includes:

a second receiving module, configured to: after the second network device and the first network device establish a session by using the specific protocol, do not need to first send an information request to the first network device, directly receiving the first a first message sent by the network device, where the first message carries information that is collected by the first network device and that meets the information identifier of the second network device, where the information request indicates that the Information of the information identification of the network device;

An extracting module, configured to extract, from the first message received by the second receiving module, the information that meets the information identifier of the second network device;

And a saving module, configured to save information that is extracted by the extraction module and meets the information identifier of the second network device.
The network device according to claim 25, wherein the second receiving module is further configured to receive a second message sent by the first network device, where the second message carries the first network Updated information collected by the device;

The extracting module is further configured to: extract the updated information from the second message;

The second network device further includes:

And an update module, configured to update, by using the updated information extracted by the extraction module, the saved information that meets the information identifier of the second network device.
The network device according to claim 25 or 26, wherein the message type further comprises a push message, the push message is a one-way message, and the second network device receives the push message There is no need to reply to the reply message, the first message belongs to the push message.
The network device according to claim 27, wherein the specific protocol configures the Netconf protocol for the extended network, the request message is a remote procedure call request message rpc in the Netconf protocol, and the response message is the Netconf The remote procedure call response message rpc-reply in the protocol, the extended Netconf protocol includes a remote procedure call push message rpc-push, and the push message is the rpc-push.
The network device according to claim 25 or 26, wherein the operation type supported by the request message comprises a publishing operation, and the issuing operation enables the second network device to receive a request message carrying the publishing operation. Thereafter, the information in the request message carrying the publishing operation is saved; the first message belongs to a request message carrying the publishing operation.
The network device according to claim 29, wherein the second network device further comprises:

The second sending module is configured to send a third message to the first network device, where the third message is a response message that the second network device responds to at least two request messages carrying the publishing operation.
The network device according to claim 30, wherein the specific protocol configures the Netconf protocol for the extended network, and the response message is an extended rpc-reply in the extended Netconf protocol, the extended rpc- The reply includes at least two message numbers carrying request messages for the publish operation.
An information sending system, comprising:

The network device used as the first network device according to any one of claims 17 to 24, and the network device used as the second network device according to any one of claims 25 to 31.