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1、重庆邮电大学硕士学位论文基于NetFlow的网络流量流向分析系统的研究与应用姓名:曹锡宇申请学位级别:硕士专业:通信与信息系统指导教师:张德民20060525重庆邮电大学硕士论文摘要AbstractToday,thenetworka∞wildlyusingina11business.andthesll'uetureofitbec0111emorcandmorecomplex.nlela'endofchangedeeidethehugemarketofnetwork,operatoraskforthehigherrequirem
2、entinthemeantime,thatisstableconnection,reliableservice,hi啦ratetransmitandl犯c1.1reenvironment.Whilenow,networkconstructionandoptimizationbaseOIltheinformationcollectionhasbeendonebythehumanbeingactivities,thiskindofwaycan'tsatisfytherealrequirementofnetworkprogrammi
3、ng.So,∞thebusinesscarrier,the0p睨'al,orneedsuzgentlyasystemtoconsllaletnetwork,managebusinessanddevelopsubscribers,itistlacl'CasolllWecarryoutNetF
4、owbasedFlowAnalysisSystem.佩ssystemcanprovidedisla-ibutedmnetworkperfommeeanalrzingandmoaitoringsystemtohlsr,ectthewholes
5、ituationoftheoperator’Snetworkandtog~edecisivesuggestionofnetworkol岖miza_tiomTllissystemdesignedinthispaperincludesthreemainparts,DatacollectionsubsystemisdesignedtocaptureNetFlowexportdatascatfromroutingdc'vicc,getIPnetworkinformationfi'omtheexportdataandstorctomid
6、dledatabase.RealtimeanalysissubsystembuildsonewebSel'Ve,l"tomakecontrastwithsystemus盯andgetrealtimeanalysisrequirementofusef.thendistilldatafrommiddledatabasoanddotheanalysis,atlastthesubsystemwillshowtheresulttoUSerwithgraplaieOlt"tableinthenetworkpage.OLAPanalysis
7、subsystemcangetdatafromitsOVVlldatawarehousewithrelativedimemionality.TheresultofanalysisisalsoshowntouscrwithgraphicOrtableusingnetworkpage,Anomalyt阻蚯canalysisisallimportantmethodofnetworkintrusiondetectionsystem,whichisneededby麟canalysissottware.Duetothegoodcharac
8、teristicofNetFlow,Anomaly嘣canalysisbased011NetFlowhasparticularadvantagewhicheurrernintrusiondetectionsystemdoesnOthave,Inthisthesis,Westudyandimplementnetworkmonitorsottware,NetFlowbasedFlowAnalysisSystem.minp啦ofthissystemisbasedonNctFlowdata,functionalityofreal-ti
9、meanomalytl'a伍Canalysisis13.necessarysupplementofcurrentIntrusionDeteetionSystem(/DS)..Keywords:IPnctworlqNetFlow,realtimeanalysis,IDSⅡ独创性