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Link station information transmission method based on multi-interface route equipment

A link state information and transmission method technology, which is applied in the field of link state information transmission based on multi-interface routing equipment, can solve problems such as network pressure on adjacent routers, achieve the effects of optimizing the flooding process, increasing the establishment speed, and avoiding occupation

Inactive Publication Date: 2006-11-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during the flooding stage, it will also put great pressure on the CPU and network of adjacent routers.

Method used

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  • Link station information transmission method based on multi-interface route equipment

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0052] Example 1. The implementation process of forming the first adjacency relationship between routing device 1 and routing device 2.

[0053] In the process of forming the first adjacency relationship between routing device 1 and routing device 2, routing device 1 detects whether there is an established adjacency between it and routing device 2 after the first adjacency relationship being formed enters the 2WAY state Since the new adjacency is the first adjacency, routing device 1 determines that there is no established adjacency. In this way, routing device 1 sends a DD description packet carrying complete link state confirmation information to the routing equipment two.

[0054] After the first FULL adjacency relationship is formed between routing device 1 and routing device 2, the formation process of other new adjacency relationships is as described in Example 2 and Example 3 below.

[0055] For the convenience of description, the first adjacency that is being formed o...

example 2

[0056] Example 2. When routing device 1 and routing device 2 have a FULL adjacency relationship of the same neighbor in the same area, the implementation process of forming a secondary adjacency relationship between routing device 1 and routing device 2 is as follows:

[0057] In the process of forming a secondary adjacency relationship between routing device 1 and routing device 2, after the secondary adjacency relationship enters the 2WAY state, routing device 1 detects whether there is a FULL adjacency of the same neighbor and the same area between it and routing device 2 relation. Since the adjacency being formed is a secondary adjacency, that is, there is a FULL adjacency between routing device 1 and routing device 2, routing device 1 determines that there is a FULL adjacency in the same area, and thus routing device 1 will carry the The DD description message of the link state confirmation information within the link range where the adjacency relationship is being formed...

example 3

[0058] Example 3. When routing device 1 and routing device 2 have FULL adjacencies in different areas of the same neighbor, the implementation process of forming a secondary adjacency relationship between routing device 1 and routing device 2 is as follows:

[0059] In the process of forming a secondary adjacency relationship between routing device 1 and routing device 2, after the secondary adjacency relationship enters the 2WAY state, routing device 1 detects whether there is a FULL adjacency in a different area of ​​the same neighbor with routing device 2 . Since the adjacency that is being formed is a secondary adjacency, that is, there is a FULL adjacency between routing device 1 and routing device 2, routing device 1 determines that there is a FULL adjacency in a different area of ​​the same neighbor. In this way, routing device 1 Send the DD description message carrying the link state confirmation information within the area where the secondary adjacency relationship is...

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Abstract

This invention provides a link state information transmission method based on a multi-interface route device including: when a first route device sends link state information to a second route device, it tests the sent instruction information and determines the actually needed information and sends it to the second route device, in this invention, a route device can decide if the sent link state information contains repeated information so that the information necessary to be sent actually contains the information un-repeated and should be transmitted so as to avoid repeated transmission of link state information.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for transmitting link state information based on a multi-interface routing device. Background technique [0002] OSPF (Open Shortest Path First, Open Shortest Path Routing Protocol) is a link-state IGP (Interior Gateway Protocol, interior routing protocol). [0003] Many large networks have multiple interfaces, that is, multiple links, between routers. If the OSPF protocol is run in this environment, the router will directly send a large number of repeated LSA (Link State Acknowledgment, Link State Acknowledgment) messages to the peer router through multiple interfaces during the adjacency formation phase, so that the peer router will A large number of LSA messages with the same content transmitted from the same peer router will be received. A large number of LSA messages will cause great pressure on the CPU in the router. At the same time, a large number...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/00
Inventor 尼廷克凯乐司瑞尼
Owner HUAWEI TECH CO LTD
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