华为SDN解决方案.pdf

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1、SDN的产品化实践——华为SDN解决方案Content1业界SDN思路简介2华为企业网络SDN愿景3SDN最佳实践与技术创新1什么是SDN？ONF：SDNisanewapproachtonetworkinganditskeyattributesinclude:separationofSDNdataandcontrolplanes;auniformvendor-Software-DefinedNetworkingagnosticinterfacebetweencontrolanddataplanes;alogicallycentral

2、izedcontrolplane;andslicingandvirtualizationoftheunderlyingnetwork.开放APIGartner：Software-definednetworkingGoogle:Asnetworkingsystemsscale,(SDN)isanewapproachtodesigning,whetheritbegrowthinbandwidthorthebuildingandoperatingnetworksthatfocusesnumberofusersbeingserved,one

3、hastoondeliveringbusinessagilitywhilelowering网络虚Overlayworryaboutmanageability,cost-efficiency,capitalandoperationalcosts.Itisfarmore拟化SDNrobustnessandavailabilityofthenetworkthanjustanewsetofAPIsdesignedtofabric.SDNallowsyoudotacklemanyofreplacecommandlineinterfacesfo

4、rtheseproblems.managingindividualdevices.控制面与数解决实据面解耦际问题VMware:VMwareSoftwareDefinedVerizon：VerizonhasdeployedSDNasanNetworking(SDN),availabletoday,helpsoverlaynetworkforvideodistributionsolvethedatacenternetworkingchallenge.services.Forscaleandflexibility,theSDNwhichv

5、irtualizesthenetworkandcreatesframeworkmustsupportmultipleVMlogicalnetworksthatmeettheagility,domains,multiplenetworkdomains,andperformanceandscalerequirementsofmultipleservices/applicationswithopen,virtualizedapplicationsanddata.standardinterfaces.2SDN主流技术路线OpenFlow标准

6、网络开放技术架构：技术架构：1、转发与控制分离架构；1、开放网络设备能力；2、标准化转发面；2、标准化API；优点：优点：1、充分利用现有设备；1、易于流量调度；2、快速实现；2、开放生态链；Overlay:网络叠加技术NFV(NetworkFunctionVirtualization)技术架构：技术架构：1、网关功能软件化；1、网络边缘软件化；2、归一化平台；NICIRA2、Overlay技术；已经被VMware收购优点：优点：1、快速业务供应；1、与物理网络解耦；2、降成本；2、灵活部署；3ONF所定义的SDN架构ONF定义的S

7、DN架构OpenFlow实际部署图Software-DefinedNetworkOpenFlowArchitecture交换机APP1APPnThinSecureChannelSWControllerSwitchingFlowTableHWOFSwitchOFSwitchOFSwitchOFSwitchSource:ONFwhitepaper--Software-DefinedNetworking(SDN):TheNewNormforNetworksOF:OpenFlow特征：控制转发分离、集中控制器、网络开放可编程、转发面抽象4O

8、NF开放网络联盟：OpenFlow的发展2012.102012.9OF-Test1.0，互操2012.4作测试，2011.12OpenFlow2002-20072009.122011.022011.031.3.1完善版本OpenFlo