組播在多協(xié)議標簽交換網絡中的研究與應用.pdf

1、杭州電子科技大學碩士學位論文組播在多協(xié)議標簽交換網絡中的研究與應用姓名：陳怡申請學位級別：碩士專業(yè)：通信與信息系統(tǒng)指導教師：孫文勝20091201杭州電子科技大學碩士學位論文IIABSTRACTAsap2mpmp2mptechnologyIPmulticastiswidelyusedintheareawhichjoinedmulticastpointssuchasvideomeetingwkprogramdistanceeducatio

2、nthelike.FromthecurrentdevelopmentsituationtheareajoinedmulticastpointsmainlyfocusonQoSofthewk.ButthetechnologyofIPmulticastisnotgoodatQoS.MPLSwhichdevelopsfastintherecentyearscanmeetourdem.AsaresulttheMPLStechnologycomb

3、ineswithIPmulticast(MPLSMulticast)willbeaninevitabletrend.MPLSmulticastcannotonlycreataflexibletreestructureinIPlayerbutalsohavearapidswitchabliblityinlinklayer.ItcanprovideahighQoSlevelwhichfullymeetspeople’sdoubledemin

4、bothbwidthQoS.ItcanbepredictedthatMPLSmulticastwillbeappliedinrealtimemultimediatrafficcontrolwhichhasp2mpmp2mptopologyinthefuture.NeverthelesstheapplicationsofMPLSnowfocusonIPunicastatmostofthetime.MPLSmulticasthasnotis

5、suedaunifmstardyetwhichseriouslyaffecteditsdevelopment.BasedontheactualsituationthebackgroundIhavedoneresearchwkasfollow:(1)StudytherelatedtheiesofIPMulticastMPLS.(2)AnalysetheproblemstechnicaldifficultiesIwillmeetwhenre

6、searchMPLSmulticast.(3)ProposetwokindsofsolutionsafterresearchhowtorealizePIMSMSharedDistributionTreeSourceDistributionTreeunderMPLS.OnewayiscreatingmulticastfirstthenmappingtheLSPtree.TheotherwayisusingJoinPrunemessaget

7、ocreateLSPmulticasttree.(4)AftercomparingthesetwosolutionsIprefertothewayofusingJoinPrunemessagetocreateLSPmulticasttreetorealizeMPLSmulticast.Theadvantageofthisschemeisthatestablishingmulticasttreemappinglabelsatthesame

8、timecangreatlyreducethesetuptimeofmulticasttreemaintaintheMPLSmulticasttreemeeffectively.(5)DesignasystemimplementationfMPLSmulticastwiththeplatfmofSWresearchincompany.(6)DesignanimplementationofwkingfMPLSmulticast.Keywd