Using MiniGUI To Design And Develop A Handheld Network Tester

Recently,with stepping into the era of the network progressively, we tend to depend on the information network more and more. The network tests are the basic means to guarantee high performance, high dependability and high usability of network. As an important tool of network tests,network tester is gaining people's concern day by day.At the begining, this thesis expatiates the basic network structure. It consists of significance of network delamination and material protocals of each delamination. The conception and purport of network supervisal are introduced too, include some important criterions and protocals, such as MIB, SNMP, RMON.Topology discovery is involved in our network tester, so some principles and maturity algorithms of Topology discovery are expatiated in the begining too.The middle of the article designs the whole handheld network tester. The thesis put forward in-depth analysis on the application characteristics and requirments on network tester from three aspects, hardware platform, software platform and GUI system. The whole project is modularized, they are ping module, workstation discovery module, network route search module, network equipment supervison module, network data packet analysis module and network topology discovery module. The whole design buleprint is brought forward in the end.As a kernel, the thesis detailedly discusses the specific implementation of the handheld network tester based on MiniGUI system. the article presents the basic structure of hardware platform,then, the structure of GUI system is referred, includes the implementation principle of MiniGUI server process and client process. At last the thesis discusses the work flow of function modules and the algorithm of network topology discovery module, and takes ping module as example to illustrate the implementation method of function module.Based on the analysis of handheld network tester, the thesis present improvement against the limitation of existing system, and bring forward some ideas and advices for next work.