3G分组交换核心网络的基于区分服务QoS方案设计

上海交通大学硕士学位论文3G分组交换核心网络的基于区分服务QoS方案设计姓名：施凌申请学位级别：硕士专业：计算机技术指导教师：邓倩妮;程滨20060901IQualityofService,QoSIETFQoS1.WebQoSQoSWebQoSQoSTCP/IP2.QoS3.QoSLinux4.k1297_G20QoSIIAbstractAlongwiththedevelopmentofcommunication,alluserswishtocommunicatewithothersateverymomentandineverywhere.Differentusersneeddifferentdelaytimeandlossrate.Mobilenetworkshouldprovidedifferentqualityofservicetodifferentusers.Howtoresolvethisprobleminthe3rdgenerationmobilesystemisanimportantissue.Accordingtotheresearchinthe3rdgenerationmobilesystemandthemodelofqualityofservicetheresearchworkmentionedinthepaperismainlyabout:1.TheresearchonWebQoSandNetworkQoS.Concepts,classification,protocolsandkeytechnologyofWebQoSandNetworkQoSarepresented;IntegratedServicesandDifferentiatedServicesonTCP/IPnetworkarestudiedindetails.2.ThedesignofQoS-aware3rdgenerationmobilesystempacketswitchedcorenetwork.ThetechnologiesandsystemarchitechureofDifferentiatedServicesQoSareanalyzedindetails.TocombineDiffServand3rdgenerationmobilepacketsystem,DiffServ-basedpacketcorenetworkisdesignedonthebaseofmobiletelecomnetwork;thepopularqueuealgorithmsandqueueschedulingalgorithmshavebeendiscussedalso.3.TheimplementationofQoS-aware3rdgenerationmobilesystempacketswitchedcorenetwork.Thepacketclassification,queueandschedulingtechnologyinLinuxoperatingsystemareanalyzedindetailed,andthecorrespondingdatastructure,programflowarepresentedinthispaper.4.Testandresultanalysis.ThethesisteststhedesignedDiffServ-basedpacketcorenetworksbehaviorthroughTechtrokicstestingtoolK1297_G20whichisusedtosimulatedifferentdataflow.TheanalyzedtestresultsverifytheQoSguarateefunctionofthedesignedpacketIIIcorenetwork.TheproposedQoSmodelbringsbothengineeringmeaningsandeconomicalvaluesto3rdgenerationmobilesystemforChinainsomeextent.KEYWORDSNetworkQualityofService(QoS)DiffServmodelCorerouterQueuemanagement3rdgenerationmobilenetworkIVAFAssuredForwardingBABehaviorAggregateBEBest-effortFowardingCBQClass-BasedQueuingCOSClassofServiceDiffServDifferentiatedServicesDSCPDifferentiatedServicesCodePointEFExpeditedForwardingFIFOFirst-InFirst-OutGGSNGatewayGPRSSupportNodeGPRSIntServIntegratedServicesLSPLableSwitchProtocolPHBPerHopBehaviorQoSQualityofServiceREDRandomEarlyDetectionRSVPResourceReservationProtocolSFQStochasticFairnessQueuingSGSNServingGPRSSupportNodeGPRSSLAServiceLevelAgreementTBFTokenBucketFilterTCATrafficConditionAgreementTOSTypeofServiceUMTSUniversalMobileTelecommunicationsSystemWRRWeightedRoundRobin11.1-2000IMT-2000UMTS1)2)3)PSTN4)RTTRadioTransmissionTechnology2Mbit/s384kbit/s2144kbit/s9.6kbit/s23delayjitterInternetWeb30msIPQualityofServiceQoSQoS.1.2IPQoSQoS3FIFOFirst-In-First-OutSGSNServingGPRSGeneralPacketRadioSystemSupportNodeGGSNGatewayGPRSSupportNodeQoSIPQoS[1]IPIPQoSInternetIETFQoSInterServ/RSVPDiffServ1)IETFRSVP1Guaranteed2ControlledLoad2)AggregatePBPPerHopBehaviorQoSQoSPHBPHBQoS1.3QoSQoS4QoSQoSQoSQoSQoSRSVPIntServQoSDiffServQoSQoSCiscoHarrisNortelDataConnectJuniperNortelQoSQoSUUNETQoSIPAT&TQoSIPIUT-TCR-LDPY.1310L.ipatmIPoAQoSQoSQoSQoSQoSQoSQoS1.4QoSLinux5IPQoS2.1QoSQoSQualityofServiceInternetIPIPQoSIPQoSIPIPQoSIPQoSQoSQoSQoS2.2QoSQoSWebQoSWebInternetbest-effortUNIXWebFIFOFirst-In-First-Out[2]WebQoSQoSHTTPWebWebWebQoSWebQoSWebQoSWebQoSWebQoSWebQoSWeb61)WebQoS[3]WebWebQoSHTTPHTTP2)WebQoS[4]WebWebQoSWebQoSHTTPWebWebQoSBangaResourceContainer[5]/WebWebWebQoS[6]CPUProtectionDomainResourcePrincipalWebCGIWebQoS7//////Web/CPUWebWebWebQoS3)WebQoSWebQoSWebWebQoSWebQoSWebQoSWebQoSWebWebQoSWeb2KWebQoSQoS-awareHPBhojQoS-awareWeb2KWebQoSWebTCPSocketTCP/IPWebWeb8QoSQoSInternet4)WebQoS[7][8]HTTPWebWebClusteringWebUIUCUniversityofIllinoisatUrbana-ChampaignNCSANationalCenterforSupercomputingApplicationsNCSAScalableWebServerClusterNOWNetworkofWorkstationsNSCHarvestCiscoIBMWeb[9][10]CiscoLocalDirectorDistibutedDirectorIBMNetworkDispatcherHydraWEBHydraWEBDispatcherRNDWebServerDirectorWebWebWebLANWANWeb12[11]NetptureNecJobCenterQoSWebWebWebAndrew9WebQoS[12]HTTPWebWebQoSWeb2.3QoSQoSWebQoSWebQoSQoSIPQoSIPIPQoSQoSATMIPRSVPQoSIEEE802.IP/QIPTOS3LANCOSClassofServiceQS102.4QoSIETFQoSATMIntegratedServicesIntServDifferentiatedServicesDiffServ2.4.1ATMATMQoSATMVCI/VPIPCMATM5ABCDXABDSCDXATMQoSATM2.4.2CBRQoSRoutingQoSCBRCBRCBR11CBR2.4.3MPLSIPIPIPIPMPLSIP32IPMPLSLSPMPLSQoSMPLSMPLS2.4.4RFC1633RFC2210IntServRSVPResourceReservationProtocol[13]QoSQoSIntServGuaranteedServicesRFC2212Controlled-LoadServicesRFC2211Best-EffortInternetIntServ441)RSVPRFC2205RSVPInternet12RSVPQoSRSVP2)AdmissionControlRSVPIntServ2-12-1RSVPIntServFig.2-1ReferencemodelofIntServhostandrouterusingRSVP3)ClassifierIPIPIP4)SchedulerWFQWF2QSCFQVCMD-SCFQWRRIntServQoSIntServRSVPPATHRESVIntServIntServRSVPRSVPRSVPRSVP13RSVPIntServRSVPIntServ2.4.5[14][15]Core-StatelessDSCPCodePointPHBDSDifferentiatedServicesDSCPprofileIPDSCPIPIPDSCPPer-Hop-BehaviorPHB1)DSCPIPDSFieldDSPHBDSTCADSIPv4TOSTypeofServiceIpv6TrafficClass2-2DSCP6bit14CU2bitIETFECNExplicitCongestionNotificationCUPHBCUIpv4TOSIpv6DSCPCUECN2-2IPFig.2-2DSFieldinIPheader2)ISPISPServiceLevelAgreementSLAISPTrafficConditionAgreementT