The Research And Design Of EPON Switch Based On Embedded LINUX

This paper is about research and development of EPON. Now, Now, the EPON is the promising Program to Network Bottleneck to Access network solutions,so the EPON is bing the EPON is Widedly attented by the industry, Many enterprises have invested human and material resources of its related technologies, standards, products , the author and the team, tutor Carried out the product development, This is a meaningful and challenging work.The paper is a summary about The results of work and research of what the author undertake.Firstly, based on the SNMP protocol,The author research the Manager and the agent model,and mostly research USM and VACM of the security. Research the Frame of the JAVA to develop the EMS,and give the code of endorsement of SNMP 4J to USM and VACM,at last,give the The overall design of the EMS,software structure of Management station and Work flow of management station,and Agent software structure and work flow chart.Secondly,based on the MIB-II,and study of RFC and requirement of enterprise ,design the Public MIB and Private MIB,And give a specific MIB structure of library,and recommend a Editor OF AdventNet Agent Toolkit C Edition of MIB ,then design Manager client and the database ,Analysis how the data in the MIB database go into the database client Manager.Thirdly,design the CLI.and Focus on the overall planning of the system,Including the synchronization of multi-user login ,Run-time process planning system,The module dipartition of development ,the need to synchronize the data storage location,The interface between modules and functions of each module.then made a detailed exposition of the Statistics on the cli command format,Including cli command mode Statistics,cli command string in the form of the Public,cli command string simplest normalization algorithm,Equivalence of cli command string,cli command string tree organization.Last discussed cliserver Management Module,Including data structure, the interface management module to export.Finally, Summary and Outlook to the paper,Analysis of the work that has already done,Clear the need for further work to be done.In short,EPON product development is a long and arduous process,also Is a meaningful and challenging work.