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ID:40634777
大小:809.89 KB
页数:16页
时间:2019-08-05
《Is Cisco Application Centric Infrastructure an SDN》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、WhitePaperIsCiscoApplicationCentricInfrastructureanSDNTechnology?ExecutiveSummarySoftware-definednetworking(SDN)hasgarneredmuchattentioninthenetworkingindustryoverthepastfewyearsduetoitspromiseofamoreagileandprogrammablenetworkinfrastructure.TheinitialOpenFlow1.1specificat
2、ionwasintroducedin2011,themomentmanyindustryanalystscitedasthestartofthemodernSDNmovement.YetproductiondeploymentsofSDNusingOpenFlowtechnology(especiallyin1thedatacenter)aswellassoftware-basednetworkoverlays,arestillintheirinfancy.ManyITprofessionalsviewoperations,scalabil
3、ity,andreliabilityasnewchallengesthatSDNtechnologiesmustaddress.InNovember2013,CiscoannouncedtheacquisitionofInsiemeNetworks.Indoingso,Ciscoalsoannouncedits®strategytoaddressthechallengesthatSDNistryingtosolve,throughtheintroductionofCiscoApplicationCentricInfrastructure(A
4、CI).CiscoACInotonlyaddressesthechallengesofcurrentnetworkingtechnologiesthatOpenFlowandsoftware-basedoverlaynetworksaretryingtoaddress,butitalsopresentssolutionstothenewchallengesthatSDNtechnologiesarecreating.Thisdocumentanalyzesthebenefitsandlimitationsofcurrentnetworkin
5、gtechnologiesthatarefuelingthemovementtoadoptSDN.ItalsolooksathowCiscoACIcanmeetthenewchallengesfacingtheseSDNtechnologies.Finally,itaddressesthisfundamentalquestion:IsCiscoACIanSDNsolution?TheNeedforaNewNetworkArchitectureTheOpenNetworkingFoundation(ONF)isauser-ledorganiz
6、ationdedicatedtothepromotionandadoptionof2SDN.TheONFhaspublishedawhitepapertitled“Software-DefinedNetworking:TheNewNormforNetworks”.Thispaperdescribesthetraditionalwayofbuildinghierarchicaltree-structure,ortiered,networks,andexplainswhythisapproachisnotsuitedtothedynamicna
7、tureofmoderncomputingandstorageneeds.Italsopresentssomeofthecomputingtrendsshapingtheneedfornewnetworkarchitecture,including:●Changingtrafficpatterns:Thedatacenterisshiftingawayfromtraditionalclient-serverapplicationarchitecturestomodelsinwhichsignificantlymoredataisbeingt
8、ransferredfrommachinetomachine.Theresultisashiftfromnorth-southtrafficpatternstomoreeast-
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