Research On WLAN Construction Planning And Security Protection In Colleges

Under the context of surging development of network technique,intelligent campus' building has become an important indicator of raising the quality of running school.And the improve of the network infrastructure is the guarantee of it.As it has the qualities of moving freely,flexible networking,less demanding in wiring,easy to use,easy to expand,easy to maintain and low cost,the wireless network has been used widely in many colleges and universities.There are still many problems in building up a real wireless system: 1.The building scheme is multitudinous.It may cause instability in connecting AP from terminal if the network topology is improperly set.2.if the AP can't be set properly,the amount of AP may appear too much while other positions can't be linked in.3.the linking of wireless widen the boarder and some users may get inside the network,skimming the firewall so that the difficulty of network protection will be risen.4.the users' position is changing all the time.So it is very important to keep the stability of the wireless network.This theses analysis the key technology of building wireless networks,which bases on the development of wireless networks,including networking mode,communication protocol,way of encryption,etc.after studying the evolution and current situation of the wireless network.This theses choose a local higher vocational college to be the object of study for supporting the local education as different colleges have different situation.Being a late starter in information construction and campus network building,building a wireless network in school has been delayed by the lack of fund.So it is of great importance to make a proper plan on building WLAN and safety protection.And after considering the research subject's specific situation,it is able to design a proper topology framework and a complete wireless network building plan.The plan involves equipment selection,network structure,AP setting,server configuration,safety protection,maintenance operations,etc.The theses choose a suitable safety protection policy and finally work out a solution to solve the problems that exist in the safety and reliability testing.This is under the lead of the college's necessary and classified protection of network security 2.0 standard.The plan made in this theses will satisfy the needs of the vocational college in 5-10 years and wifi6 device can also be accessed.After testing,the average delay is lower than40 ms,signal intensity all above-65 d Bm.In 95% of the use region,users receive over 20 d Bm SNR,95%feel good about that and no one think it is difficult to use.