SD-WAN-培训材料

主标题：字体：微软雅黑（加粗）字号：40-54pt颜色：白色副标题：字体：微软雅黑（加粗）字号：24-36pt颜色：标题绿中兴蓝[R0-G142-B211]标题绿[R182-G229-B31]中兴灰[R87-G87-B87]黄孝国SD-WAN2中兴蓝[R0-G142-B211]中兴绿[R140-G198-B62]中兴灰[R87-G87-B87]正文标题：字体：微软雅黑（加粗）字号：36-44pt颜色：中兴蓝正文（1-5级）：字体：微软雅黑字号：20-28pt颜色：黑色©ZTECorporation.Allrightsreserved专业词汇•UnderlayNetworkThephysicaltransportnetwork•OverlayNetworkVirtualNetworkabstractedfromthetransportnetwork(underlaynetwork)•OverlaynetworksaretunneledoverUnderlaynetworksUsinganencapsulationprotocol,e.g.,VxLAN,NVGRE,IPSectunnel,etc.•Overlay/UnderlayterminologyusedinDCNetworkingTerminologyusagemorerecentwithWAN(SD-WAN)Title:Type:ArialSize：24ptColor：TheZTEblueSubtitle:Type:ArialSize：16-20ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245为什么SD-WANSD-WAN技术方案案例目录1Title:Type:ArialSize：24ptColor：TheZTEblueSubtitle:Type:ArialSize：16-20ptColor:TheZTEgreenG143,B212R140,G198,B62R90,G203,B245为什么SD-WANSD-WAN技术方案案例目录1企业网络及IT应用面临的问题什么是SD-WAN企业部署SD-WAN的驱动力是啥5中兴蓝[R0-G142-B211]中兴绿[R140-G198-B62]中兴灰[R87-G87-B87]正文标题：字体：微软雅黑（加粗）字号：36-44pt颜色：中兴蓝正文（1-5级）：字体：微软雅黑字号：20-28pt颜色：黑色©ZTECorporation.Allrightsreserved过去的血泪史BranchHQVSAT：时延600msBranchHQInternet专线：时延200msInternetIPSecVPNTunnelBranchHQ专线：时延200ms运营商网络DedicatedCircuit+GRE封装模式1模式2模式3有问题有变化有需求案例6中兴蓝[R0-G142-B211]中兴绿[R140-G198-B62]中兴灰[R87-G87-B87]正文标题：字体：微软雅黑（加粗）字号：36-44pt颜色：中兴蓝正文（1-5级）：字体：微软雅黑字号：20-28pt颜色：黑色©ZTECorporation.Allrightsreserved企业IT成本支出情况有问题有变化有需求案例7中兴蓝[R0-G142-B211]中兴绿[R140-G198-B62]中兴灰[R87-G87-B87]正文标题：字体：微软雅黑（加粗）字号：36-44pt颜色：中兴蓝正文（1-5级）：字体：微软雅黑字号：20-28pt颜色：黑色©ZTECorporation.Allrightsreserved分支机构网络维护复杂有问题有变化有需求案例目前部分厂商已经提供了uCPE解决方案，在通用硬件上运行虚拟机或者容器，不同虚拟化单元上运行不同的网络服务，比如Firewall，UTM，NAT等构成ServiceChain，极大的便利了服务的快速部署，提高了可维护性给租户提供更多的选择空间，租户希望在保证基本的网络连接的基础上能够有更多控制盒选择权。E2E的操作和监控©ZTEAllrightsreserved8Internaluseonly▲SD-WAN--广域网组网日益复杂复杂并缺乏灵活性：网络配置和策略MPLS成本高网络性能不稳定漫长的交付周期WAN的优化成本高广域网线路的可用性难题安全—Mobility,cloud和IoTservices都要向分支机构开放，增加了安全隐患Downtime：关键应用需要实时在线敏捷性：传统WAN无法快速适应新需求有问题有变化有需求案例9中兴蓝[R0-G142-B211]中兴绿[R140-G198-B62]中兴灰[R87-G87-B87]正文标题：字体：微软雅黑（加粗）字号：36-44pt颜色：中兴蓝正文（1-5级）：字体：微软雅黑字号：20-28pt颜色：黑色©ZTECorporation.AllrightsreservedInternet线路状况日益变好，价格降低Source:WilliamNorton(DrPeering.net);Stanfordpingend-to-endreporting(PingER)有问题有变化有需求案例10中兴蓝[R0-G142-B211]中兴绿[R140-G198-B62]中兴灰[R87-G87-B87]正文标题：字体：微软雅黑（加粗）字号：36-44pt颜色：中兴蓝正文（1-5级）：字体：微软雅黑字号：20-28pt颜色：黑色©ZTECorporation.Allrightsreserved谁在驱动WAN改变？有问题有变化有需求案例©ZTEAllrightsreserved11Internaluseonly▲SD-WAN的需求--企业应用逐步上云有问题有变化有需求案例12中兴蓝[R0-G142-B211]中兴绿[R140-G198-B62]中兴灰[R87-G87-B87]正文标题：字体：微软雅黑（加粗）字号：36-44pt颜色：中兴蓝正文（1-5级）：字体：微软雅黑字号：20-28pt颜色：黑色©ZTECorporation.Allrightsreserved公司广域网例子–架构简单，网络清晰PrivateWANDataCenterRemoteandBranchOfficeRemoteandBranchOfficeRegionalHubandCampusDisasterRecoverySiteITOpsApp.teams2014Internet过去，网络仅仅是网络，只关注连通有问题有变化有需求案例13中兴蓝[R0-G142-B211]中兴绿[R140-G198-B62]中兴灰[R87-G87-B87]正文标题：字体：微软雅黑（加粗）字号：36-44pt颜色：中兴蓝正文（1-5级）：字体：微软雅黑字号：20-28pt颜色：黑色©ZTECorporation.Allrightsreserved公司广域网例子—架构复杂，网络复杂PrivateWANDataCenterRemoteandBranchOfficeRemoteandBranchOfficeRegionalHubandCampusDisasterRecoverySite2016+MobilePublicInternetCarrierNeutralFacilitiesGlobalOpsIaaSSaaS现在，网络不久是连通，更关注面向应用有问题有变化有需求案例©ZTEAllrightsreserved14Internaluseonly▲总结：什么因素决定着企业需要采用SD-WANGlobalDataTechnologyresearchhasidentifiedsomekeydeterminantsthatearlyadoptersofSD-WANshaveusedtojustify–ornotjustify–theuseofSD-WANwithintheirnetwork:QuestionRemarkAreyourIaaS/SaaS/PaaSsolutionsperformingaccordingtospec?Ifso,thenthere’snotnecessarilyaneedtodeploynewnetworkingtechnologysuchasasoftware-definedWAN.Ifnot,thenanewsolutionmightgivebettercloudappperformanceandflexibilityDoconsiderablechangesinthenetworkneedtobemadeonacontinuousorongoingbasis?Thesechangesmayincludetechnicalchangesaswellascommercialones.ThispointalsorelatestotheoverallevolutionofITtowardspay-as-you-go.Ifthepay-as-you-gomodelisattractiveintheorganization,thenSD-WANsolutionswillhelptoachievethiscomparedtomorestaticandtraditionalIP/MPLSVPNs.Dowehavemission-criticalapplicationsthatarebandwidth-hungryorparticularlyjittersensitiveandwhichneedtobesecureandfreeofcongestionorqualityofserviceissues?OrganizationsthathaveadoptedSD-WANhavereportedanenhancedabilitytosegmentoffportionsofthenetworktoaddressqualityofserviceissuesresultingfromcongestionon‘peaky’trafficfromappsusingvoiceorvideo.DowehavealargenumberofremotesiteswithmultipleWANlinks,orareweplanningto?ForlargernetworkswithmultiplesitesandWANlinks,SD-WANfunctionalandeconomicadvantagescanbecompelling.However,withasmallernumberofsitesorifamajorityofsitesaresinglyconnected,theadvantagesarehardertoidentify.©ZTEAllrightsreserved15Internaluseonly▲SD-WAN与MPLSWAN的区别点AttributesSD-WANLegacyWANProvisioningZero-touchprovisioningManualprovisioningOn-demandappsupportTrybeforeyoubuy&pay-as-you-goITInflexibleplatformfortryingoutnewconfigurationandservicesforashortperiodConfigurationchangesAutomatedfeaturesManualproceduresOrchestrationCentralorchestrationManydisparatepartstothenetworkincludinghardwareCPE,provideredge,coreSupportforCloudapplicationarchitectureCloudreadyNotnecessarilyarchitectedfromtheo