城域接入网络解决方案ADSL

Cisco城域接入网络解决方案---ADSL2IPMANSolution,Draft1,April13,2001议程•思科DSL解决方案概述•Cisco6260IPDSL交换机•CiscoDSL宽带服务器•CiscoDSL网络管理3IPMANSolution,Draft1,April13,20014IPMANSolution,Draft1,April13,200144CiscoSystemsConfidentialAccessProductsDSLModemTechnologySpeedvsDistancePortDensityModulationTechniquePOTS/ISDNSpittersMax.DataRateDown/Uplink(bps)VDSL–VeryHighBitRateDSL25M/1.6Mor8M/8MCopperPairsRequired1AnalogVoiceSupportYesMax.Reach(km-feet).9–3,000DSLServiceADSL–AsymmetricDSL8M/1M1Yes5.5–18,000HDSL–HighBitRateDSLHDSL–HighBitRateDSL1.5M–2.0M/1.5M–2.0M2No4.6–15,000SDSL–SymmetricDSL784K/784K1No6.9–22,000IDSL–ISDNDSL144K/144K1No5.5–18,000ISDN128K/128K1No5.5–18,0005IPMANSolution,Draft1,April13,2001ADSLFunctionalSegmentsCPE—CustomerPremiseEquipmentNAP—NetworkAccessProviderNSP—NetworkServiceProviderCPENAPNSPVideoVoiceContentATU-RDSLAMAggregationServiceSelectionCoreTerminationServiceSelectionEnterpriseInternetISPInternet6IPMANSolution,Draft1,April13,200145CiscoSystemsConfidentialAccessProductsxDSLBusinessLAN-to-LANHDSL,ADSL,SDSLTelecommutingADSL,IDSL,HDSLT1replacementHDSLHomeI’netaccessforworkADSL,IDSL,HDSLI’netaccessforconsumersADSLGamingADSLxDSLApplications7IPMANSolution,Draft1,April13,2001CiscoGlobalDSL-新一代业务的基础企业PSTNIP+ATMMPLS家庭办公室、个人用户主要的分支机构中小企业家庭用户IntelCisco600/700/800/1000•本地话音业务•可网管的话音和数据VPNs•专线的替代•视频会议•VoD•Internet高带宽=多业务=高利润Cisco8001700ISP6400/7400Cisco60006400/740062606015Cisco6260Cisco2600/3600MDU8IPMANSolution,Draft1,April13,2001议程•思科DSL解决方案概述•Cisco6260IPDSL交换机•CiscoDSL宽带服务器•CiscoDSL网络管理9IPMANSolution,Draft1,April13,2001DSL发展历程“IPDSLSwitch”2000IntegratedIPRouterandATMswitchDeliversIP+ATMserviceformanagedIPservices,VoIP/VoATM,andconsumerentertainmentPre-1998DumbDSLAMUBRorframeonlymultiplexerBasicInternetaccessBarriertomulti-serviceSmartDSLAM1999IntegratedATMswitchenablestrafficprioritizationNotawareofIPapplications10IPMANSolution,Draft1,April13,2001什么是“IPDSLSwitch”?•将ATM交换机和IP路由器集成在一起•可网管的DSL服务的基础，支持多种IP业务MPLS和IPSecVPNDSL线路的汇聚WebCacheAware-节省广域网带宽视频娱乐的组播防火墙提供更强的安全性•支持多种DSL•多种中继接口•运营商级设计11IPMANSolution,Draft1,April13,2001MoreIPrichservicescanbeenabledinthefuture•IPMulticastwillallowreplicationattheedgethuseliminatingwastedbandwidth•WebcachingattheSwitchcanreduceinternettraffictrunk•SPcantargetMXUapplicationswithserviceslikeVideoonDemand,Webhosting,Filebackups•“Cherry-pick”theIPservicesbasedonhardwarepotential12IPMANSolution,Draft1,April13,2001传统DSLAM应用EnterpriseInternetISPPVCATU-RDSLAMCorePVCPVCPVCOnePVCpersubscriberAggregatedPVC•VCdepletionontheSPaccessside•VCprovisioningdelays•VClimitationcouldrestrictnumberofsubscribers13IPMANSolution,Draft1,April13,2001IPDSLSwitch-AggregatioatattheEdgeATU-RIPDSLSWITCHMPLSVPNorIPCorePVCAggregatedPVCISPorCorporate•VCaggregationattheIPDSLSwitch•SwitchactsasaPEforMPLScoretoenableVPNservices•Reducesprovisioningdelays14IPMANSolution,Draft1,April13,2001Cisco6000IPDSLSwitchCiscoGlobalDSL的基础DSL铜线网络IP+ATM核心SVC/SoftPVCFairSubtendingATMSwitchPVCCBRUBRVBRSmartDSLAMPriorityQueuesnxE1/T1,DS3,E3,OC3,OC12ADSLG.shdsl,SDSL,IDSLUBRorFrameDumbDSLAM...提供IP和/或ATM的灵活性和扩展性IPMulticastWebCacheAwareIPQoSIPRoutingMPLSPPPoE/A,1483VCTermination运营商级的设计15IPMANSolution,Draft1,April13,2001Cisco6000IPDSLSwitch产品市场Cisco6015N.A.CO,MDU,DLCCisco6260W.W.CO,N.A.MDU认证ETSIandNEBSETSI密度24to48线120to240线应用•Internet访问•商务•话音/数据集成IOS,ATM,DSL(ADSL,SDSL,G.shdsl)和网管投资保护产品N.A.CONEBS128to256线•Internet访问•商务•话音/数据集成Cisco6100•Internet访问•商务•话音/数据集成16IPMANSolution,Draft1,April13,2001Cisco6260机箱•面向国际PTTs,CLECs,MDUs•120-240用户线路•可扩展的、高性能的ATM结构1STM-1/OC3,E3,8xE1上联端口支持CoS/QoS基于公平机制的级连最多可连接13个DSLAM,共3,120个用户线路支持ATM信令(PVC,SVC,SPVC,VPTunnel)基于IOS的软件•运营商级设计and兼容所有的ETSI标准ADSL(CAPandDMT),G.lite,SDSL,G.SHDSL•andCiscoDSLManager17IPMANSolution,Draft1,April13,2001Cisco6260机箱•30xTUC槽位四口模块密度=120端口八口模块密度=240端口两个网络接口模块槽位主用/备用•13.5RU23.5in.高，19in.宽11in.深兼容NEBS标准•集成电源模块和风扇系统•支持1+1和N+1冗余备份•AC/DC电源18IPMANSolution,Draft1,April13,2001OC3/OC12,E3,E1WANinterfacePort1Portn155MbpsSTUCCard2ATUCCard1STUCCard3xTUCCardnIPDSLSwitchMultirateDSLADSL/SDSL/G.shdsl/IDSL*Available1HCY00660MbpsCellSwitchFabric1M+CellBufferCisco6000IPDSL交换机体系结构SubtendIFStandard(UBR)Economy(VBR-nrt)Medium(VBR-rt)Premium(CBR)IPServicesMPLS“SubscriberManagement”19IPMANSolution,Draft1,April13,20014xADSL线路模块•支持6015,6160,6260•支持线路编码:–ANSIT1.413Issue2–ITUG.992.1(G.dmt),G.992.2(G.lite),G.994.1(G.hs)•动态协商ITUorANSI连接•机箱密度:6015-24用户线路6160-128用户线路6260-120用户线路20IPMANSolution,Draft1,April13,20018xADSL线路模块•支持6015,6160,6260•支持线路编码:–ANSIT1.413Issue2–ITUG.992.1(G.dmt),G.992.2(G.lite),G.994.1(G.hs)•动态协商ITUorANSI连接•机箱密度:6015-48用户线路6160-256用户线路6260-240用户线路21IPMANSolution,Draft1,April13,20018xSDSL/G.SHDSL线路模块•支持6015,6160,6260•2B1Q&TC-PAM•支持多速率，最高可到双向2.3Mbps•ATM帧结构•机箱密度:6015-48用户线路6160-256用户线路6260-240用户线路22IPMANSolution,Draft1,April13,2001NI-2电信级可靠性I/OBoardPHYLayerSignals(backplane)PrimaryNTRPrimarySMBPrimaryDSBPrimaryNI-2PhyIFRef.TimingSwitchIOSProc.SystemFailureSecondaryNTRSecondarySMB2ndDSBxTU-C#1xTU-C#2xTU-C#3xTU-C#30DSB=DigitalSerialBusSMB=SerialManagementBusNTR=NetworkTimingReferenceSecondaryNI-223IPMANSolution,Dra