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1、NFV與SDN協(xié)同部署技術(shù)探討【摘要】網(wǎng)絡(luò)功能虛擬化(NFV)實現(xiàn)了網(wǎng)絡(luò)設(shè)備軟件功能和硬件功能的解耦合,改變了現(xiàn)有網(wǎng)絡(luò)部署、和運營的模式。軟件定義網(wǎng)絡(luò)(SDN)將控制面和轉(zhuǎn)發(fā)面相分離,提高了網(wǎng)絡(luò)智能化程度和轉(zhuǎn)發(fā)效率。本文對NFV和SDN的定位、關(guān)系進行了論述,并對如何協(xié)同部署NFV和SDN進行了探討和建議?!娟P(guān)鍵詞】NFV、SDN、OpenfFlow、VNF、SDN控制器doi:10.3969/j.issn.1006-1010.2015.19.000分類號:TN03文獻編識標識碼:A文章編號:1006-1010(2015)19-0000-00引用格式:彭莉,馬金蘭.NFV與SDN
2、協(xié)同部署技術(shù)探討[J].移動通信,2015,39(19):00-00.DiscussiononCollaborativeDeploymentTechniqueofNFVandSDNPENGLi,MAJin-Ian(GuangzhouResearchInstituteofChinaTelecomCo.,Ltd.,Guangzhou510630,China)[Abstract]Networkfunctionsvirtualization(NFV)realizesthedecouplingofnetworkequipment’ssoftwareandhardwarefunctionsa
3、ndchangesmodesofdeploymentandoperationofexistingnetwork.Softwaredefinednetwork(SDN)separatescontrolplanewithforwardingplaneandimprovesnetworkintelligentlevelandforwardingefficiency.ConceptsofNFV,SDN,andtheirrelationshipwerediscussed.Inaddition,thecollaboratedeploymentofNFVandSDNwasaddressedan
4、dsuggestedinthispaper.[Keywords]NFVSDNOpenFlowVNFTheResearchofcollaborationinNFVandSDNPENGLiMaJinlan(GuangzhouResearchInstituteofChinaTelecomCo.,Ltd,Guangzhou510630)Abstract:NetworkFunctionsVirtualisation(NFV)decouplesthesoftwareandhardwareoftraditionalnetworkequipment,changesthewayofdeployme
5、ntandoperationofnetwork。SoftwareDefinedNetwork(SDN)isanetworkarchitecturewherenetworkcontrolisdecoupledfromforwarding,improvesthedegreeofintelligenceandefficiencyofforwarding。TodiscusstheusageandrelationshipofNFVandSDN,proposethesolutionofcollaborativedeploymentofNFVandSDNOKeyWords:NFV、SDN、Op
6、engflow、VNF、SDNController1.1引百NFV(NetworkFunctionsVirtualisation,網(wǎng)絡(luò)功能虛擬化)將現(xiàn)有電信網(wǎng)絡(luò)設(shè)備的軟件和專用硬件解耦合,通過對軟件架構(gòu)的重新設(shè)計,使網(wǎng)元功能軟件運行在通用服務(wù)器上,實現(xiàn)電信網(wǎng)絡(luò)部署和運行維護管理的資源共享化、自動化。SDN(SoftwareDefinedNetwork,軟件定義網(wǎng)絡(luò))是一種新型的網(wǎng)絡(luò)架構(gòu):,它將網(wǎng)絡(luò)的控制平面與數(shù)據(jù)轉(zhuǎn)發(fā)平面相分離,通過提供開放的接口和可編程化控制,實現(xiàn)網(wǎng)絡(luò)功能的軟件化。NFV和SDN的關(guān)系及定位自這兩種2種技術(shù)被提出以來就一直處于爭議狀態(tài):。很多人認為NFV是SDN
7、眾多技術(shù)流派中的一種解決方案,也有人認為NFV和S麗是互相排斥、不能共存的。本文將對這兩種2種技術(shù)的定位進行分析,并提出在網(wǎng)絡(luò)建設(shè)中如何根據(jù)業(yè)務(wù)需求協(xié)同應(yīng)用、部署這兩種技術(shù)。2.2NFV與SDN的比較分析2.1.2.1業(yè)務(wù)需求及欲需解決的問題2.1.1.(1)NFV業(yè)務(wù)需求及欲需解決的問題NFV相關(guān)標準體系是由ETSI網(wǎng)絡(luò)功能虛擬化行業(yè)規(guī)范工作組((ETSINFVISG))主導(dǎo)和推動的,目前已經(jīng)制訂和發(fā)布了NFV需求、用戶案例、體系框架等文檔。ETSI從可移植性、性能、靈活性等1