Design And Implementation Of Agent Based On SNMP Protocol

Along with the development in computer network, it appeared that a flood of network equipments and the complicated network environment, the network management becomes a problem which can't be neglected. Simple network management protocol (SNMP) is been extensive to apply in network management, becoming industrial standard in fact of the network management. SNMP agent is the kernel entity of SNMP network management; it is a kind of software resident in the managed network devices, which can access their run-time status, device characteristics, system configuring parameters and other correlative information.And which is the reply and connection interface between the managed equipment and the network management software.In order to solve the problem of the unified management of the different kinds of type commutation machine equipments in Da Tang's company, we design and realize the unifying interface system which is a kind of SNMP Agent model between the equipment end and the network management station.It has good extension, and it would facilitate to the later development work, save the massive manpower and the material resource.This paper introduces the basic model of network management and the framework of SNMP. Then we analyze the difficulty to extend the current SNMP agents by their non-opening processing method. To deal with the problem, this paper puts forward a framework of extensible SNMP agent, which is made up of five modules: initialization module,communication module,message processing module,Trap processing module and MIB management module. This paper gives description of the design idea and realization method in detail.