IP network topology discovering method based on SNMP

Abstract

Disclosed a method for automatically discovering the physical distribution of network and the connection relationship of IP network topology, based on the SNMP protocol, comprises following steps: constructing the condition of operating the SNMP network management; arranging a management information base on every network node of target network; the network management process via the application layer visits the SNMP management information base; the network management applies the information transmitted to the network management process to reach the managed network entity via the substratum protocol; discovering the topology of network layer; and discovering the topology of data chain circuit layer. In the network management, the inventive method can detect the topological structure of network layer and the data chain circuit layer, attain and maintain the existence information and connection relation information of network node, and protract the topological chart of total network. Andthe network manager can position the network breakage via the information of topological structure and discover the network bottleneck for optimizing the whole network.

Description

technical field [0001] The present invention relates to a method for network management, more specifically, a method for discovering IP network topology. Background technique [0002] According to the definition of the OSI Open System Interconnection Reference Model, network management mainly includes five functional domains: fault management, configuration management, performance management, security management and billing management. [0003] Among the five functional domains, configuration management is the foundation, and its main functions include discovering the topology of the network, monitoring and managing the configuration of network devices. [0004] The goal of network topology management is to display the topological structure of the operating network hierarchically, provide support for the processing of performance, alarm, and configuration data, thereby comprehensively and dynamically reflect the operating status of the network, and provide a powerful means f...

AI Technical Summary

Problems solved by technology

For example, adding a router, reducing a host, or even modifying the configuration information of a network device will lead to changes in the network topology.

In order to faithfully reflect network changes, topology discovery software must have the ability to update in real time, and most network management software currently do not support this requirement

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