1、聲明本學(xué)位論文是我在導(dǎo)師的指導(dǎo)下取得的研究成果，盡我所知，在本學(xué)位論文中，除了加以標注和致謝的部分外，不包含其他人已經(jīng)發(fā)表或公布過的研究成果，也不包含我為獲得任何教育機構(gòu)的學(xué)位或?qū)W歷而使用過的材料。與我一同工作的同事對本學(xué)位論文做出的貢獻均己在論文中作了明確的說明。研究生簽名：＼習(xí)金，、1學(xué)位論文使用授權(quán)聲明年月日南京理工大學(xué)有權(quán)保存本學(xué)位論文的電子和紙質(zhì)文檔，可以借閱或上網(wǎng)公布本學(xué)位論文的部分或全部內(nèi)容，可以向有關(guān)部門或機構(gòu)送交并授權(quán)

2、其保存、借閱或上網(wǎng)公布本學(xué)位論文的部分或全部內(nèi)容。對于保密論文，按保密的有關(guān)規(guī)定和程序處理。研究生簽名：、司盒、1年月日Abstract碩士學(xué)位論文AbstractInrecentyears，aSthetrendofmultimediamobile，IntemetofThings，BigDataandthedevelopmentoftheIntemet，thescaleofthecurrentnetworkhaSbeenfarbeyon

3、dthedesignideasofthenetworkarchitectsdecadesagoDuetotheinherentdefectthatonlyconsidertotrytOforwardingdataatthebeginningdesignoftheTCP／IPnetworkarchitecture，thenetworksupportedbytheoldsystemofnetworkisbecomingmoreandmore

4、complex，moreandmoreslowandthecostisbecominghigherandhigherIfwewanttoaddtheroutingfunctionsornetworkmanagement，alotofinterfacesmustberepairedonthetraditionalnetworkHowevertheproblemsofthecurrentnetworkarchitectureCannotbe

5、solvedfundamentallyandthereareevenmorenewproblemsappearedTherefore，theevaluationsofthenextgenerationIntemethaSreachedaconsensusintheindustryOpenFlowthelatestresearchresultsofStanford’Sprojectnamedcleanslateprovidesthepla

6、tform、析t11thenetworksystemandagreementtodeploytestandinnovateintherealnetworkenvironmentAstheriseofSDN(SoftwareDefinedNetwork)OpenFlowhaSa10tofsupportsofequipmentvendors，suchasIBM，cisco，NEC，HP，NetgearandHuawei，anditalsoh

7、asmoreandmoreextensiveapplicationanddeploymentincloudcomputing，datacenternetworksecurityandotherfieldsMulticasthasalwaysbeenanimportanthottopicinthefieldofInternetthetraditionalIPmulticastisanimportantexpansionoftheunica

8、stmodelofInteract，itappliestosuchapplicationswhichconcentratedontimeanddistributedinspace，nlemainfunctionofmulticastisbaSedonrouters，anditreducesthewasteofbandwidthbymergingtherepeatinformationHowevertherearealotofproble

9、msonIPmulticast：allroutersmustsupportmulticastandshouldsavethestateforeachmulticast，poorscalabilitymakesitnotconductivetopromotinguse，usingtheunifiedmodeltoadapttoalloftheapplicationmakesthealgorithmdifficulttodesign，the

10、costtojoinorexitthemulticastgroupandthegroup’Smanagementisoverhead，someproblemsinsuchaSpectsassafetyandcongestioncontr01強emainpurposeofthispaperistodesignandrealizeanewmulticastgroupmanagementprotocolbyusingthecharacteri

11、sticsofOpenFlowthatseparatecontrolanddataforwardingInaddition，combinedwiththecharacteristicthatOpenFlowCanobtaintheglobalnetworklinktopologythispapermainlystudiedtheimplementsofefficientmulticastthatCanbeauthenticatedinO