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CiscoConfidential1©2010Ciscoand/oritsaffiliates.Allrightsreserved.CiscoConfidential1©2010Ciscoand/oritsaffiliates.Allrightsreserved.思科网络虚拟化(nV)技术介绍议题•ASR9000网络虚拟化技术总体介绍•网络虚拟化技术实现•nV技术在城域网中的应用ApplicationVirtualizationNetworkVirtualizationManagementCoreEdgeAggAccessOpticalEdgeResidentialBusinessThird-PartyServices/ContentAggregationAccessCoreConvergedCiscoPrimeIPNGNSPServices/ContentnV两台边缘设备，以及边缘和会汇聚设备融合成单一设备.一致的软件功能，一致的业务能力.简化网元设置，节省75%的运维费用完全客服边缘和汇聚节点的保护问题，不需要运行任何协议，简单，有效一个虚拟系统最多扩展到84,480个GE@FCS,支持24satelliteperASR9K每台设备需要单独管理变换和汇聚节点功能不一致影响业务开展.业务提供，运维，管理成本居高不下节点故障保护难题.端口密度和扩展性无法突破Before:nVTechnologyAfter:nVTechnologynVClusternVSatellite创新的nV技术带来网络变革AggregationNodeAggregationNode•Built-insysteminfrastructurefornetworkdual-homing•Servicescaleindependentlyconvergence•Sub50msecconvergencetime*同时实现简单的网络结构和完善的可靠性•Increasenodecapacitybyclusteringphysicalchassistogether•Singlecontrolandmanagementplane,withoutintroducingoperationalcomplexity大大扩展了网络设备的端口容量•nVEdge+nVSatellite•Supernetworkresiliency,capacity,GEdensity,Simpleoperationandsinglesoftwarefeatureset网络管理和维护更加简便，实现网络扁平化ASR9000nVSystem*ConvergencealsodependsonthepeerdevicenVcluster技术介绍•OnlyoneActiveRSP,OnlyonestandbyRSPatagiventime,whicharelocatedontwodifferentchassis–SSO/NSF/NSRworksexactlythesamewayastwoRSPsonthesamechassis–Reliableoutofbandcontrolchannelbetweentwochassis–IOS-XRcontrolplancantoleranthundredsofmseclatency*,althoughthelatencycanimpactoverallserviceconvergencetime•VirtualChassisisalwaysonaslongasthereisonechassisandoneRSPaliveActiveRSPSecondaryRSPLCLCLCLC0StandbyRSPSecondaryRSPLCLCLCLC1DSCChassisNonDSCChassisActivecontrolplaneStandbycontrolplaneStandbyRSPActiveRSPStandbyRSP*Practically,recommendmaximum10mseclatencybetweentwochassisCluster实现了不丢包网络升级•Goal:nVEdgeSystemisalwaysON,minimizepacketlossduringimageupgrade•Multiplesoftwareupgradeoptions,implementedinmultiplephases–ISSU–EnhancedISSUinthefuturerelease–upgradeonechassisatatime.IncaseitrequirereloadingRSP/LC(forexample,jumpmultiplemajorreleases),itcanreloadonechassisatatimeActiveRSPSecondaryRSPLCLCLCLC0StandbyRSPSecondaryRSPLCLCLCLC1DSCChassisNonDSCChassisSatelliteisplug-n-play,zerotouchconfigurationASR9000nV远端模块技术介绍免管理的接入网络“virtual/remote”userinterfacesSatelliteProtocol•InstallspecialsatelliteimageontheselectedaccessdevicetomakeitASR9Knvsatellite•SatelliteandASR9000Hostrunsatelliteprotocolforauto-discovery,provisioningandmanagement•SatelliteandHostcouldco-locateorindifferentlocation.ThereisnodistancelimitbetweensatelliteandHost•Theconnectionbetweensatelliteandhostiscalled“nvfabriclink”,whichcouldbeL1oroverL2virtualcircuit•Fromenduserpointofview,satellitelooks/feels/workslikeaASR9K“remoteorvirtual”linecard.Theinterfacesonthesatellitelooks/feels/worksthesameastheinterfacesonthelocalASR9Klinecards•Fromenduserpointofview,ASR9KHostandassociatedsatellitesisonevirtualRoutersystem.Satelliteisplug-n-play,zerotouchconfiguration/managementSatelliteHostnvfabriclinksLocaluserinterfacesOneASR9000nVSystemSatellite技术介绍SatelliteONLYdoeslocalconnectbetweenaccessandfabricport•Nolocalswitching/routingonsatellite,allforwardingisviaHost•SatelliteONLYdoeslocalconnectbetweenaccessportandfabric,NOTbetweenaccessports.NoMAClearninginvolved•AdvancedfeaturesareprocessedontheHostchassissatellitevirtualport•Minimalmandatoryfeaturescouldbeappliedtosatellitedirectly,includingbasicQoS,multicastreplication,OAMperformancemeasurement,SyncE.However,theconfigurationisstilldoneontheHostASR9000vASR9000HostSatelliteaccessporttonormalportcommunicationPowerFeeds•Redundant-48vDCPowerFeeds•SingleACpowerfeed44x10/100/1000MbpsPluggables•FullLineRatePacketProcessingandTrafficManagement•CopperandfiberSFPoptics•Speed/duplexautonegotiationFieldReplaceableFanTray•RedundantFans•ToD/PSSOutput•BitsOut4x10GSFP+•InitiallyusedasFabricPortsONLY(couldbeusedasaccessportinthefuture)•CopperandfiberSFP+opticsIndustrialTempRated•-40Cto+65COperationalTemperature•-40Cto+70CStorageTemperature1RUANSI&ETSICompliantLEDsASR9000v远端模块介绍MaxPower210WattsNominalPower159WattsCompact•1RU,ETSI300mmdepth,40W•Hardened/Extendedtemprange-40cto+65cReliable•PowerSupply:Duallinefeed•Redundantpowersupply(optional)Flexible•LTEready•Pay-as-you-growlicensemodelScalable•12GEports+16T1/E1ports•L2Switching,L3RoutingcapabilitieswithMPLS,QOSatlinerate•SyncE,1588v2BC/TC,10Mhz,BITS,1PPS,ToD,p2pASR901-E(Ethernetonly)Metro/Carr.EthSwitchw/12GEportsASR901(TDM+Ethernet)CellSiteRouterw/16T1/E1+12GEportsCiscoASR901CellSiteRouterfor2G,3G&4GAcceleratingthemigrationfrom2G/3Gto4G/LTECiscoASR901–Satellite路由器CiscoASR903–Satellite路由器•Compact–3RU,6InterfaceSlots–Fitsin300mmcabinets(9.2”deep)•Reliable–RedundantPSUs,FANsandRSPs–Extendedoperatingtemp.range-40to65C•Scalable–Ethernet:1x10GEand8xGE–TDM/ATM:16xT1/E1and4xSTM1/1xSTM4–nVenabledCiscoASR903UnifiedEthernetAccessBreakingthesilosofResidential,Business&MobilenVCluster与Satellite技术结合构建简化可靠的汇聚接入网络SatelliteProtocolSatelliteHostnvfabriclinks统一的虚拟平台ClusterIP城域网现状核心UNIVERSITYUNIVERSITYUNI接口:Ethernet商业楼宇CPERouter个人宽带城域综合接入核心高密度10GECoreRouterSR+AGG汇聚节点机房BRASB