SUPANET多粒度服务质量协商协议研究

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1、西南交通大学硕士学位论文SUPANET多粒度服务质量协商协议研究姓名：李娜申请学位级别：硕士专业：计算机应用技术指导教师：窦军20090501西南交通大学硕士研究生学位论文第lI页拓扑结构，一个针对单播应用，一个针对组播应用。通过对仿真结果的比较和分析，验证了作者所提出的机制的可行性和有效性。关键词：单物理层用户数据交换平台体系结构；面向以太网的物理帧时槽交换技术；服务质量协商协议；组播；资源预留西南交通大学硕士研究生学位论文第1II页ABSTRACTnisanirresistibletrendthattelevisionnetwork,te

2、lephonenetworkandcomputernetworkmergeintoallintegratedone．However,existingnetworkarchitecturesarehardtosupplyQoSprovisioningfordifferentapplications．SUPANET(SinglephysicallayerUser-dataswitchingPlatformArchitectureNETwork)，introducedbySichuanNetworkCommunication‘,KeyLaborat

3、ory(SC-NetcomLab)，simplifiestheuser-datatransferplatform(U-platform)intoasinglephysicallayerandembedQoSmechanismsint0it．Inthisway,SUPANETCanefficientlyprovidetheQoSrequiredbydifferentapplications．QoSNPisanimportantpartinSUPANET,whichnegotiatedone．VirtualLineandobligatedtheq

4、uotatomeettheQoSprovisioningfordifferentapplications．ItisveryimportanttoimproveandperfecttheQoSNPtomakeitmorecapablewhenprovidingtheQoS．Thisthesisfocusesonperfectthe’QoSNP,makingithasmorefunctions．TheuserCanusedifferentfunctionsfor，differentneeds．Multi-granularityQoSNPisthe

5、majorconsiderationinthisthesis．Itresolvestheloopproblem，dynamicallyadjustquotaissue，andsupportthemulticastwhichisnotin-depthconsideredintheearlyversionofQoSNP．TherearethreenewoperationsinMulti-granularityQoSNP(MQoSNP)，New,AddandDec．TheNewoperationwhichintroducesanewschemefo

6、ravoidingloopistoresolvetheloopprobleminacyclicnetworktopology．TheAddoperationCanincreasethequotaofoneVirtualLineandimprovetheQoSaccordingtouser’needs．TheDecoperationisopposffetoAddoperationwhichCandecreasethequotaofoneVirtualLineaccordingtouser’meeds．MQoSNPCanmakeVirtualLi

7、nenegotiationandnetworkresourceusagemoreeffective．Meanwhile，thethesisanalyzesthepotentialexceptionsandprovidestherelativeoptionalsolutions．ThisthesisraisesanewQoSnegotiationmanner,ReverseSingle-DirectionNegotiation(RSDN)，afteranalyzedthespecialfeatureinthemulticastapplicati

8、ons．Besides，threenewoperationsareaddedinMQoSNPtosupporttheEnd-systemgroupmembershi