The SNMP protocol adopts SNMP station (client process) and SNMP management station (the server process) to realize asynchronous request and response and to monitor network equipment. Its basic principle is installing SNMP proxy stations on every network node to collect relevant data information which is collected by the management process on the servers through SNMP protocol. The SNMP protocol consists of four parts: Management station, proxy station, management information basement (MIB) and network management protocol.