topological discovery

topological discovery

  Started to write relative desigen document for my NMS system.First of all,
I should make a summary of topological discovery.

 Network management has already become the key of network system. The automatic

topological discovery of network is the precondition of network management, analysis of

performance and localization of fault. With the enlargement of the network size, the

topological structure Of the network layer can't reflect the connecting relation between the

network devices accurately. So, according to the protocol SNMP, ICMP and relevant MIB

information, this text proposes a new and effective automatic topology discovery algorithm

for Ethernet. The algorithm is based on theorem for determining the connection between two

Ethernet devices. Compared with other approaches to Ethernet topology discovery, this

algorithm doesn＇t require all network devices to support SNMP and it is more efficient and

practical. The experimental result demonstrates that the algorithm can construct the

physical topology of IP network fast and exactly.