Embeded Development And Realization Of Agent Software In EPON Network Management System Based On SNMP

EPON (Ethernet over Passive Optical Network) is one of the new solution for optical fiber access network. It takes a Point-to-Multipoint Architecture and provides Multi-Service basing on Ethernet. It combines the advantage of PON technology and Ethernet technology, has the feature of high bandwidth, low cost and being used and updated easily .So, it becomes the best solution for access network.It is too important to provide an effective network management system for EPON to assure more stable, effective and orderly servicing. The SNMP agent for EPON network management can identify the request from Manager and send error information to manager when there is a jam occurred. It is one important component and mainly in charge of managing and improving EPON performance which is very significant in EPON system.This article focuses on the design and implementation of Agent software of EPON network management system, and the main contents are as follows:(1)Introduce the structure and characters of EPON system, get the advantage of EPON after compared with other access network .At last, according to the characters of EPON, one network management solution basing on SNMP is given.(2)Depict the theory of simple network management protocol, deeply research the network system structure basing on SNMP ,including operations, structure of management information and management information database.(3)Explain the reason why EPON system development should be based on linux embedded system, present the software structure of OLT/ONU in EPON system, then analyze the advantage of the design .Put out the necessary MIB in system and the realization mechanisms at last.(4)Do detailed illuminate the realization of Agent in EPON network management system, the realization mechanisms of some important modules are given such as the realization of Agent in SNMP management, the design and realization of MIB module, how to implement the save and recovery of system configuration information and mechanism of trap report.(5)Test system according to the function target of SNMP Agent, put out the result,then analyze it.