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1、SDN的產(chǎn)品化實踐——華為SDN解決方案Content1業(yè)界SDN思路簡介2華為企業(yè)網(wǎng)絡(luò)SDN愿景3SDN最佳實踐與技術(shù)創(chuàng)新1什么是SDN？ONF：SDNisanewapproachtonetworkinganditskeyattributesinclude:separationofSDNdataandcontrolplanes;auniformvendor-Software-DefinedNetworkingagnosticinterfacebetweencontrolanddataplanes;alogicallycentral
2、izedcontrolplane;andslicingandvirtualizationoftheunderlyingnetwork.開放APIGartner：Software-definednetworkingGoogle:Asnetworkingsystemsscale,(SDN)isanewapproachtodesigning,whetheritbegrowthinbandwidthorthebuildingandoperatingnetworksthatfocusesnumberofusersbeingserved,one
3、hastoondeliveringbusinessagilitywhilelowering網(wǎng)絡(luò)虛Overlayworryaboutmanageability,cost-efficiency,capitalandoperationalcosts.Itisfarmore擬化SDNrobustnessandavailabilityofthenetworkthanjustanewsetofAPIsdesignedtofabric.SDNallowsyoudotacklemanyofreplacecommandlineinterfacesfo
4、rtheseproblems.managingindividualdevices.控制面與數(shù)解決實據(jù)面解耦際問題VMware:VMwareSoftwareDefinedVerizon：VerizonhasdeployedSDNasanNetworking(SDN),availabletoday,helpsoverlaynetworkforvideodistributionsolvethedatacenternetworkingchallenge.services.Forscaleandflexibility,theSDNwhichv
5、irtualizesthenetworkandcreatesframeworkmustsupportmultipleVMlogicalnetworksthatmeettheagility,domains,multiplenetworkdomains,andperformanceandscalerequirementsofmultipleservices/applicationswithopen,virtualizedapplicationsanddata.standardinterfaces.2SDN主流技術(shù)路線OpenFlow標(biāo)準(zhǔn)
6、網(wǎng)絡(luò)開放技術(shù)架構(gòu)：技術(shù)架構(gòu)：1、轉(zhuǎn)發(fā)與控制分離架構(gòu)；1、開放網(wǎng)絡(luò)設(shè)備能力；2、標(biāo)準(zhǔn)化轉(zhuǎn)發(fā)面；2、標(biāo)準(zhǔn)化API；優(yōu)點：優(yōu)點：1、充分利用現(xiàn)有設(shè)備；1、易于流量調(diào)度；2、快速實現(xiàn)；2、開放生態(tài)鏈；Overlay:網(wǎng)絡(luò)疊加技術(shù)NFV(NetworkFunctionVirtualization)技術(shù)架構(gòu)：技術(shù)架構(gòu)：1、網(wǎng)關(guān)功能軟件化；1、網(wǎng)絡(luò)邊緣軟件化；2、歸一化平臺；NICIRA2、Overlay技術(shù)；已經(jīng)被VMware收購優(yōu)點：優(yōu)點：1、快速業(yè)務(wù)供應(yīng)；1、與物理網(wǎng)絡(luò)解耦；2、降成本；2、靈活部署；3ONF所定義的SDN架構(gòu)ONF定義的S
7、DN架構(gòu)OpenFlow實際部署圖Software-DefinedNetworkOpenFlowArchitecture交換機(jī)APP1APPnThinSecureChannelSWControllerSwitchingFlowTableHWOFSwitchOFSwitchOFSwitchOFSwitchSource:ONFwhitepaper--Software-DefinedNetworking(SDN):TheNewNormforNetworksOF:OpenFlow特征：控制轉(zhuǎn)發(fā)分離、集中控制器、網(wǎng)絡(luò)開放可編程、轉(zhuǎn)發(fā)面抽象4O
8、NF開放網(wǎng)絡(luò)聯(lián)盟：OpenFlow的發(fā)展2012.102012.9OF-Test1.0，互操2012.4作測試，2011.12OpenFlow2002-20072009.122011.022011.031.3.1完善版本OpenFlo
