Router in OSPF (open shortest path first) network and processing method thereof

A processing method and router technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of accelerating route convergence, unfavorable management unit security, etc.

Active Publication Date: 2013-04-03
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] This application provides a router in an OSPF network and its processing method to solve the problem in the prior art that each management unit in the same area distributes the routing information in the unit to each other, which is not conducive to the safety and speed of the management unit. The problem of routing convergence

Method used

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  • Router in OSPF (open shortest path first) network and processing method thereof
  • Router in OSPF (open shortest path first) network and processing method thereof
  • Router in OSPF (open shortest path first) network and processing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0058] The processing method in Embodiment 1 of the present application may be executed by any TBR connecting the first management unit and the second management unit. When the first router is a TBR connecting the first management unit and the second management unit, the processing method executed by the first router is as follows: figure 2 shown, including the following steps:

[0059] Step S201, the first router receives the new LSA of the first management unit, wherein the new LSA includes: the original LSA and the topology LSA used to describe the topology information, the original LSA can be a router LSA or a network LSA;

[0060] To distinguish the topological LSA when the original LSA is a router LSA from the topological LSA when the original LSA is a network LSA, you can call the topological LSA when the original LSA is a router LSA the first topology LSA, and call the topological LSA when the original LSA is a network LSA The topology LSA is called the second topolo...

Embodiment 2

[0071] The processing method in Embodiment 2 of the present application can be executed by the router in the first management unit. In order to improve efficiency, the router in the first management unit adds a new topology LSA for describing topology information behind the LSA in the prior art. In order to facilitate the transmission border router connected to the first management unit to perform special processing. When the first router is a router in the first management unit, the processing method performed by the first router includes the following content:

[0072] 1. Generate and publish a new LSA that includes the Router LSA and the first topology LSA

[0073] The operations that the first router needs to perform include the following steps:

[0074] Step S301, after the first router establishes an adjacency relationship with directly connected neighboring routers, it generates a new LSA including a router LSA and a first topology LSA, wherein the first topology LSA i...

Embodiment 3

[0111] Through the above-mentioned first and second embodiments, the new LSA generated by the router in the first management unit that needs to shield the routing information includes not only the Router LSA or Network LSA of the prior art, but also the topology LSA used to describe the topology information. When the TBR of the first management unit wants to synchronize the LSDB to other management units, it only publishes the topology LSA, but not the Router LSA and Network LSA. In this way, the routers in other management units can only receive the topology LSA. And use the received topology LSA of the first management unit to calculate the topology and routing of the local area. The second management unit is any management unit that belongs to the same area as the first management unit and is connected to the TBR of the first management unit. When the first router is a router in the second management unit, the processing method of the first router includes The following con...

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Abstract

The invention discloses a router in an OSPF (open shortest path first) network and a processing method thereof. The method applied to a TBR (transit boundary router) connecting a first management unit and a second management unit includes: receiving a new LSA (link-state advertisement), comprising original LSAs which are router LSAs or network LSAs and topological LSAs for describing topological information, of the first management unit; storing the original LSAs and the topological LSAs comprised in the new LSA into a LSDB (link-state database), and establishing associations between the original LSAs and the topological LSAs; before sending the LSAs to the second management unit, judging whether each original LSA in the LSDB is provided with the associated topological LSA or not; if yes, sending the topological LSA associated with the original LSA to the second management unit. By the use of the router and the processing method, safety of the management units is enhanced and route diffusion is reduced.

Description

technical field [0001] The present application relates to the technical field of IP (Internet Protocol, Internet Protocol) routing, and in particular to a router in an OSPF network and a processing method thereof. Background technique [0002] OSPF (Open Shortest Path First) routing protocol is an Interior Gateway Protocol (Interior Gateway Protocol) based on link state (Link-state) developed by IETF (Internet Engineering Task Force, Internet Engineering Task Force, IGP). The OSPF routing protocol is used to advertise routing information between routers in the same autonomous domain (AS). The following introduces some basic concepts and terms of the OSPF routing protocol: [0003] 1. Area [0004] The OSPF routing protocol introduces the concept of "hierarchical routing" and divides an OSPF network into multiple "Areas". Each area has its own network topology database and network topology map. For each area, its network topology is invisible outside the area, and router...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/715H04L12/721H04L12/775H04L45/58
Inventor 赵昌峰吴玲
Owner NEW H3C TECH CO LTD
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