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思科演进的可编程网络与业务平台毕诗章2014.04观看同期在线研讨会：=7168&KeyCode=000238223&ad_id=bdc97思科中国百度文库：=ciscochina思科互动网络主页：术语•EPN:EvolvedProgrammableNetwork(演进的可编程网络)•ESP:EvolvedServicesPlatform(演进的业务平台)•SDN:SoftwareDefinedNetworking(软件定义组网)•NFV:NetworkFunctionVirtualization(网络功能虚拟化)•VNF:Virtual/VirtualizedNetworkFunction(虚拟网络功能)•PCE:PathComputationElement(路径计算元素)•PCC:PathComputationClient(路径计算客户端)思科中国百度文库：=ciscochina思科互动网络主页：进入运营商网络演进的新时代EvolvedProgrammableNetworkOpenAPIsEvolvedProgrammableNetworkInfrastructureSDNControlResourcesServicesEvolvedServicesPlatformApplicationsandServicesOpenAPIsEvolvedProgrammableNetwork(EPN)EraNetworkFunctionVirtualization,SoftwareDefinedNetworking,andServiceOrchestrationenable-OpenandDynamic-Optimalresourceutilization-Acceleratedinnovation-Newservices&revenues-Reducedcosts-ReducedcomplexityDiscontinuity#1:TDMrigiditylimitsnewservices,forcesarchitecturalshiftIPNGNEraIPunleashesnewwaveofinnovationandservicerevenuesDiscontinuity#2:CommoditizationofIPservicesplushightrafficgrowthlimitsprofitability,forcesarchitecturalshiftTDMEra思科中国百度文库：=ciscochina思科互动网络主页：思科设想的开放网络环境(ONE)蓝图EvolvedProgrammableNetworkOpenAPIsEvolvedProgrammableNetworkInfrastructureSDNControlResourcesServicesEvolvedServicesPlatformApplicationsandServicesOpenAPIsBUSINESSAGILITYOPERATIONALSIMPLICITYPROFITABILITY¥£€$思科中国百度文库：=ciscochina思科互动网络主页：演进的可编程网络EPNAVision&StrategyforEvolvingServiceProviderNetworksProgrammabilityVirtualizationIntelligentConvergenceEvolvedProgrammableNetwork思科中国百度文库：=ciscochina思科互动网络主页：借助SDN和NFV创新ServiceOrchestrationNFVSDNNFVCommonCommuteforNetworkServicesReduceCosts/IncreaseAgilitySDNOpenandProgrammableSimplify/ReduceComplexityIntegrateNetworkandCloudServicesBestofBreedNetworkingwithSDNandNFV思科中国百度文库：=ciscochina思科互动网络主页：演进的业务平台ESPEvolvedServicesPlatform•Open,Standardsbased,ModularPlatformthatprovidesenablementandrealizationofNFVandSDNcapabilities•IncludesOrchestration,Management,Optimizationandsupportsmultiplecontrollers•Managesphysical&virtualnetwork,aswellasthecompute&storageinfrastructuretodeliverE2Ecarrier-classservices•CorrespondstoController/ControlplanecapabilitieswithintheSDNarchitecture;CorrespondstotheNFVO,VNFManager,VirtualInfrastructureManagerwithintheETSINFV传统运营商网络架构Howtoimproveit?U-PEN-PEPEBRASPPPEIGWCarrierEAggregationMPLSCoreRegionalPoPMainPoPIGWInternetCoreTransitAccessInternet期望的运营商网络架构EdgeNode(PE+BNG?)CoreNodeCore/IGWCarrierEAggregationMPLSCoreRegionalPoPMainPoPIGWInternetCoreTransitAccessCoreNodePROBLEM:AddingCPU-heavyper-subscriberBNGstatetobusyPE’smaybeanoperationalnightmare!DataCenterAAAPolicyDHCPInternetInternet控制平面转移:可编程,虚拟化,融合,编排MovingcomplexBNGcontrolplanetoCloudCoreNodeCore/IGWCarrierEAggregationMPLSCoreRegionalPoPMainPoPIGWInternetCoreTransitAccessCoreNodeCloudDataCenterSD-BNGEdgeNode(SDNdriven)BNGControlVM’sSOLUTION:MovingCPU-heavyper-subscriberBNGstatetoCloud(elasticVMcompute).High-bandwidthuserdatakeepgoingviaRouterASIC’s,notVMCPU’s.DATACONTROLElasticPerformanceAAAPolicyDHCP思科中国百度文库：=ciscochina思科互动网络主页：•ServerguysaskNetworkguysforthevirtualnetwork•Complex,ittakesdays/weekstoprovision•Limitedscale传统多租户数据中心解决方案Howtoimproveit?思科中国百度文库：=ciscochina思科互动网络主页：思科虚拟分组边缘(vPE)解决方案:虚拟化,融合,可编程,编排Tenant1VMTenant2VMTenant1VMTenant1VMTenant2VMTenant3VMDataCenterNetworkIPNGNMPLS-VPNVRF1VRF2VRF3ProviderEdgeDCEdgeVRF1VRF2VRF3BGPRRVRF1VRF2VRF3VirtualPE•FastTenantprovisioning(minutes)•MPLSforseamlessintegrationofDCandMPLSVPN•BGPbetweenDCandNetwork(clearresponisbilityborder)思科中国百度文库：=ciscochina思科互动网络主页：’sYANG-APIBGPRR思科vPE解决方案细节Multi-TenantDataCenter资源有效利用Howaboutunloadedlinks?CarrierEAggregationMPLSCoreRegionalPoPMainPoPInternetCoreTransitAccessCloudDataCenterVM’sCloudDataCenterVM’sPROBLEM:Toomanyemptylinks(wastedresources)Shortest-pathroutinginefficienciesRSVP-TEprovidestoolsbutnotthesolution5%loadABCDZYXWCoreNodeCore/IG