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Method and device for discovering network topology

A technology of network topology and topology discovery, applied in the field of communication, can solve the problems such as the inconvenience that the routing topology cannot display the routing and forwarding relationship, and achieve the effect of good practicability and good versatility

Inactive Publication Date: 2012-02-08
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This implementation method has great limitations. First, the routing topology cannot display all routing and forwarding relationships. Second, for a new routing protocol, a set of algorithms must be developed based on this new protocol to calculate its topology.
These restrictions are very inconvenient for users to use

Method used

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  • Method and device for discovering network topology
  • Method and device for discovering network topology
  • Method and device for discovering network topology

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Embodiment Construction

[0051] The technical scheme of the invention provides a new routing topology, which can display all routing and forwarding relationships; and can be compatible with new or unknown routing protocols.

[0052] In order to facilitate the description in this article, several concepts need to be clarified:

[0053]Seed routing device (Seed), that is, the routing device currently performing topology discovery, is specifically a router device in the network, used to discover routing topology. For the convenience of description, in the subsequent embodiments of this patent, the IP address is used for identification. However, in specific application scenarios, routing devices can also be identified in other forms, such as device ID, device number, etc., and changes in specific identification forms do not affect the scope of protection of the present invention.

[0054] The list of seed routing devices to be discovered (WaitSeeds), that is, the list of routing devices to be processed, s...

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PUM

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Abstract

The invention discloses a method and device for discovering network topology. By applying the technical scheme of the invention, a general routing table can be used to calculate the routing topology, and all routing and forwarding relationships can be displayed in a topology diagram. It can display the routing and forwarding relationship between any two points, routing loops and routing black holes, etc., and has good practicability. Not only that, because the topology calculation process does not depend on a specific routing protocol, it has very good practicability. good versatility.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for discovering network topology. Background technique [0002] For WAN networks, traditional network management software is difficult to manage effectively. For example, if any two communication points in the WAN are abnormal, it is difficult to find the abnormality and further locate the problem through traditional network management software. In this regard, the routing topology is very practical. Through routing analysis, it is very easy to locate the link where the problem lies. [0003] At present, routing topologies in the industry are implemented based on one or some routing protocols, such as: Open Shortest Path First (Open Shortest Path First, OSPF), which is an Interior Gateway Protocol (Interior Gateway Protocol, IGP). Routing decisions are made within a single autonomous system (Autonomous System, AS). Compared with Routing Information Pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04W84/12
Inventor 曾勇刚郭勇孙立伟
Owner NEW H3C TECH CO LTD