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Method and device for notifying link state information

A link state information and link state technology, which is applied in the branch office to provide special service devices, digital transmission systems, data exchange networks, etc., can solve the problem of inability to access network equipment that does not support IGP

Active Publication Date: 2019-05-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the embodiments of the present invention provide a link state information notification method and device, which are used to solve the problem that a network device supporting IGP cannot access a network device not supporting IGP among multiple network devices controlled by a control device

Method used

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  • Method and device for notifying link state information
  • Method and device for notifying link state information
  • Method and device for notifying link state information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Such as figure 1 The above is a schematic flowchart of a method for notifying link state information provided in Embodiment 1 of the present invention. The method can be described as follows.

[0063] Step 101: The first device receives the network topology information sent by the control device.

[0064] Wherein, the network topology information includes link state information generated by the control device between the first network device and the second network device, the first device supports IGP, and the second device does not support IGP.

[0065] The link state information includes at least one or more of port, link type, and bandwidth.

[0066] In step 101, the control device controls the network device set where the first network device is located and controls the network device set where the second network device is located.

[0067] Wherein, the network devices included in the network device set where the first network device is located support IGP, and ...

Embodiment 2

[0080] Such as figure 2 As shown in FIG. 2 , it is a schematic structural diagram of a method for notifying link state information provided by Embodiment 2 of the present invention. The method can be described as follows.

[0081] Step 201: The first network device receives network topology information sent by the control device.

[0082] Wherein, the network topology information includes the identifier of the control device and link state information generated by the control device between the first network device and the second network device.

[0083] In step 201, when receiving the network topology information sent by the control device, the first network device judges whether the identifier of the control device carried in the network topology information is the same as the locally stored identifier of the control device.

[0084] When the identifier of the control device carried in the network topology information is the same as the identifier of the control device st...

Embodiment 3

[0114] Such as image 3 As shown in FIG. 2 , it is a schematic structural diagram of a method for notifying link state information provided by Embodiment 3 of the present invention. The method can be described as follows.

[0115] Step 301: The first network device receives network topology information sent by the control device.

[0116] Wherein, the network topology information includes the identifier of the control device, the link state information generated by the control device between the first network device and the second network device, and the link status information between the first network device and other IGP-supporting devices. link state information between network devices.

[0117] In step 301, when receiving the network topology information sent by the control device, the first network device judges whether the identifier of the control device carried in the network topology information is the same as the identifier of the control device stored locally.

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PUM

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Abstract

The present invention discloses a link state information notification method and device, comprising: a first network device receiving network topology information sent by a control device, wherein the network topology information includes the first network topology information generated by the control device. Link state information between a network device and a second network device, the first network device supports the internal network protocol IGP, the second network device does not support IGP, and the first network device notifies the network topology information The carried link state information between the first network device and the second network device, because the first network device obtains the link state information with the second network device that does not support IGP through the control device, and sends The link status information is notified to other network devices that support IGP, which enables network devices that support IGP to access network devices that do not support IGP among multiple network devices controlled by a control device, thereby optimizing multiple networks controlled by the control device Routing between devices.

Description

technical field [0001] The present invention relates to the technical field of software-defined network (SDN), in particular to a link state information notification method and equipment. Background technique [0002] In a software-defined network (English: Software Defined Network; abbreviation: SDN) scenario, different control points support different protocols. For example: the control point controlling the forwarding table supports the Open flow (open flow) protocol; the control point controlling the routing table supports the routing system interface (English: Interface to the Routing System; abbreviation: I2RS) protocol; and so on. [0003] Currently, an Interior Gateway Protocol (English: Interior Gateway Protocol; abbreviation: IGP) is proposed in an SDN scenario. The so-called IGP is a protocol dedicated to exchanging data flow channel information between gateways in an autonomous network system. [0004] In practical applications, among multiple network devices c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/751H04L45/02H04L45/16H04L45/42H04L45/52H04L45/58
CPCH04L45/44H04L45/52H04L45/64H04L45/42H04L45/02H04L41/12H04L45/16H04L12/18H04L45/58
Inventor 王丽星
Owner HUAWEI TECH CO LTD