Network topology information acquisition method

Abstract

The invention relates to a method of collecting network top information. First the topological information collecting equipment transmits topological information collecting request message to each adjacent node from the local node. The request message comprises fields, which limits transferring times of the message. The operations as the follows are performed repeatedly, the nodes having receivedthe request message return response message to the topological information collecting equipment; judge whether the transferring times are up to the limit values. If yes, end the operation; if no, thenodes having received request message return the request message to each adjacent node, therefore, the collection of network topological information is realized.

Description

technical field [0001] The invention relates to network management, in particular to a method for collecting network topology information. Background technique [0002] Topology information collection is the basis of the entire network cluster management, and it is based on the fact that the devices within the range of topology collection have stored the information of the adjacent devices of the device. The so-called topology collection process starts from the topology collection initiating device, and collects the adjacency information of all devices supporting topology collection to the topology collection initiating device within the scope of topology collection. [0003] Methods in the prior art are divided into two types: topology collection based on Layer 2 protocol and topology collection based on Layer 3 protocol. The topology collection based on the Layer 2 protocol means that all topology collection messages are carried on the Layer 2 protocol, but the Layer 2 pr...

AI Technical Summary

Problems solved by technology

This method of topology collection causes each node in the entire topology to implement a complex routing algorithm, which cannot be implemented for some low-end products that do not have router functions.

[0005] The topology collection of the existing technology cannot guarantee the integrity of the collected topology information, and the method of timing topology refresh is generally used to remedy it. Even if the collection is unsuccessful, it will not affect it for a long time

However, for the cluster management of network devices, if the topology collection is incomplete, the direct consequence is that individual network devices cannot join the cluster, resulting in management loopholes

[0006] In addition, in order to solve the cycle problem in the topology collection process, the existing technology adopts a spanning tree algorithm, which is carried out according to the tree structure. Since each network device in the topology needs to run the spanning tree algorithm, the process is relatively complicated.

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