基于VPN技術(shù)的聯(lián)通計(jì)費(fèi)網(wǎng)絡(luò)設(shè)計(jì).pdf

1、分類號：密級：編號：工程碩士學(xué)位論文基于VPN技術(shù)的聯(lián)通計(jì)費(fèi)網(wǎng)絡(luò)設(shè)計(jì)碩士研究生：沈皆廷指導(dǎo)教師：湯春明副教授企業(yè)導(dǎo)師：于麗萍高級工程師學(xué)位級別：工程碩士。學(xué)科、專業(yè)：電子與通信工程所在單位：信息與通信工程學(xué)院論文提交日期：2008年4月論文答辯日期：2008年6月學(xué)位授予單位：哈爾濱工程大學(xué)晗爾濱工程大學(xué)碩士學(xué)位論文ABSTRACTDaxinganlingUnicornchargingnetworkappliesstarshapedne

2、tworktopology。Centralnodeischargingengineroom，whichislocatedinthebUsinessoutletsthroughouttheregionbyopticfiberor2Mcombined、撕mopticfiberInthiswayweCallaccesstobusinessoutletsThisaccessmoderesultsinthecostofaccessofpre—ac

3、quisitionandconstructionveryhi曲AndthepriceforlatermaintenanceisalsohighTheseproblemsdirectlycausetheentirenetworkUnicomchargingpoorflexibilityhi醢costs，lowefficiencyofmaintenance，whichresultintheslowdevelopmentofChinaUnic

4、omchargingnetworkAlltheseobstacleshavehinderedUnicomnetworkandbusinessdevelopmentseriously；makingitlagbehindtheexpansionspeedofChinaUnicom，weakentheabili毋ofChinaUnicom’Sbusinessservices。Therefore，achargingnetworkwhichhas

5、moreflexible，morelow—costmaintenanceandmoreefficientadministrationiSinurgentneedOtosolvetheproblemsencountered，Inthispaper，byanalysisoftheaccessmodeandexistingproblemsofbasiccurrentEDIchargingnetwork，networktechnologyisa

6、ppliedtosolveUnicomVPNnetworkaccesschargingAfterintroductiontothecurrentVPNtechnologyandit’types，L2TPcombinedwithIPsecareappliedtosetupChinaUnicomchargingnetworkItCansolvetheproblemsofhi醢costIntemetaccess，poorflexibility

7、，highmaintenancecosts，anddifficultaccessAfterhavingstudiedintheoreticalknowledgeoftheestabliskmentofChinaUnicomcharginginvolvedintheVPNnetworktotheL2TPcombinedwithIPsec，bearingthePPPagreementandL2TPtechnologyChinaUnicomc

8、hargingVPNnetworkissetupbasedonthemFinallybytestingonthenewChinaUnicomschargingVPNnetworkandcomparisonwiththetraditionalEDInetwork’saccessmethodofaccounting，chargingnetworkofUnicomisconfirmedhavinggoodperformanceandmakin