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Method for processing link condition announcement and router

A technology of link state notification and processing method, applied in the field of communication, can solve the problem of interface ID is not unique, can not achieve deletion of LSA, etc., to avoid invalid routing and improve routing efficiency.

Inactive Publication Date: 2007-09-26
HUAWEI TECH CO LTD
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Problems solved by technology

[0009] However, in OSPFv3, the Link State ID parameter of the network-LSA is no longer the IP address of the router, but the interface ID of the router, and the interface ID is not unique in the broadcast network, so the purpose of deleting the LSA generated by itself cannot be achieved

Method used

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  • Method for processing link condition announcement and router
  • Method for processing link condition announcement and router
  • Method for processing link condition announcement and router

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[0035] The following is a detailed introduction to the embodiment of the link state notification processing method in the embodiment of the present invention. Please refer to FIG. 3. The first embodiment of the link state notification processing method in the embodiment of the present invention includes:

[0036] 301. Establish a connection between routing devices;

[0037] When the router needs to communicate with other routing devices (the second routing device), it will first establish a connection, which can also be considered as a process of exchanging LSAs, that is, exchanging LSAs between the router and the second routing device.

[0038] 302. Determine whether there is an LSA of the other party locally, if yes, execute step 304, if not, execute step 303;

[0039] The router judges whether it has all the LSAs stored by the second routing device that needs to establish a connection.

[0040] 303. Send a Link State Update (LSU, Link State Update) message including the Li...

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Abstract

The disclosed notifying and processing method for link state comprises: receiving the link-link state notice from interface; obtaining local address of the link containing interface-self first link local address and the second link local address in the notice; deciding whether two addresses are same; if yes, canceling the notice. This invention can improves route efficiency obviously.

Description

technical field [0001] The invention relates to the communication field, in particular to a link state notification processing method and a router. Background technique [0002] In an actual network, routing information is usually collected and distributed through Border Gateway Protocol / Interior Gateway Protocol (BGP / IGP, Border Gateway Protocol / Interior Gateway Protocol). Among them, the Open Shortest Path First (OSPF, Open Shortest Path First) protocol is the most widely used among the current main IGP protocols, including OSPFv2 based on the IPv4 network and OSPFv3 based on the IPv6 network. [0003] OSPF belongs to the link state protocol. It collects the topology information and routing information of the current device in the network, and expresses it in the form of Link State Advertisement (LSA, Link State Advertisement). These LSA information is sent to the On each device in the entire network, all these information constitute the OSPF link state database (LSDB, Li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L29/08H04L12/66H04L12/02
CPCH04L45/00H04L45/02H04L45/03
Inventor 傅超
Owner HUAWEI TECH CO LTD
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