(This paper describes a network topology discovery method based on SNMP and Java by analyzing the routing table, address conversion table and other information defined by MIB-II. The results of this method are relatively accurate, and the connection between the device interfaces can also be found well in the network configured with VLAN. In addition, because it does not inject too many probe packets into the network, this method will not have a great impact on the normal traffic of the network.)
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