Research and Improvement of Network Layer Topology Discovery Algorithm Based on SNMP
Yi Zhang · Chinese Medical Equipment Journal · 2012
Objective To study and improve the existing network layer topology discovery algorithm,and to solve the problem that the existing algorithm can't fully discover the network topology,when routing information can't be fully reflected in all the routing lines.Methods Based on independent research and development of integrated business management system software,the reasons that the existing algorithm can't completely discovery the network topology were analysed,device identification and IP address Table(ipAddrTable) were used to improve the exiting algorithm.Results A routing,switching equipment and the computer identification method was proposed,and a network layer topology discovery algorithm that combined routing information table(ipRouteTable) with IP address table was realized.Conclusion Experiment proves that the new algorithm can discover the connection of all network layer devices,even if the routing information incompletely reflected all routing devices' connectivity.This method is valuable to be applied and promoted.