| As every knows, network management system reacts on manage complexity network and improve the efficiency of equipment the network. With the rapid expansion of computer network, The modern network management has developed towards the visualization and manual intelligence. And the automatization of network topology discovery underlies the graph intelligence of network management as well as consists an important part of modern network management. The network topology discovery that the quality of it becomes important dimensions that measures the business network management system success or failure .some function of network management, such as fault detection, configuration management,based on network topology discovery. The study of this paper intends to focus on the arithmetic of network topology discovery and analyse the realization of the arithmetic.First of all the paper outlines the concept of network management , the concept of network topology discovery and the tool, methods and protocols of it. Secondly the arithmetic of network topology discovery based on various protocols will be elaborated and compared in very details. Based on the analysis the advantages and disadvantages of all the methods as well as the extent to which they are applied are discussed.the paper redesigns arithmetic and data structure of network topology discovery based on SNMP protocol for quickenning velocity of arithmetic of network topology discovery.the paper designs the network topology discovery system under the platform of Windows in Vc++. Then in view of the limitation of SNMP-based arithmetic, the paper reiterates the arithmetic of network topology discovery based on the OSPF protocol.In the end ,the paper analyses approaches and theory of layouting about network topology graphics . Based on the concluding parts the paper pinpoints out the further research direction. |
