在瞻博网络基础架构上实施VMware 服务器虚拟化en

IMPLEMENTATIONGUIDECopyright©2009,JuniperNetworks,Inc.1IMPLEMENTINGVMWARESERVERVIRTUALIZATIONONJUNIPERNETWORKSINFRASTRUCTUREAlthoughJuniperNetworkshasattemptedtoprovideaccurateinformationinthisguide,JuniperNetworksdoesnotwarrantorguaranteetheaccuracyoftheinformationprovidedherein.ThirdpartyproductdescriptionsandrelatedtechnicaldetailsprovidedinthisdocumentareforinformationpurposesonlyandsuchproductsarenotsupportedbyJuniperNetworks.Allinformationprovidedinthisguideisprovided“asis”,withallfaults,andwithoutwarrantyofanykind,eitherexpressedorimpliedorstatutory.JuniperNetworksanditssuppliersherebydisclaimallwarrantiesrelatedtothisguideandtheinformationcontainedherein,whetherexpressedorimpliedofstatutoryincluding,withoutlimitation,thoseofmerchantability,fitnessforaparticularpurposeandnoninfringement,orarisingfromacourseofdealing,usage,ortradepractice.2Copyright©2009,JuniperNetworks,Inc.IMPLEMENTATIONGUIDE-ImplementingVMwareServerVirtualizationonJuniperNetworksInfrastructureTableofContentsIntroduction................................................................................................................4Scope......................................................................................................................4TargetAudience............................................................................................................4TerminologyandConcepts.................................................................................................5ServerVirtualization......................................................................................................5NetworkVirtualization...................................................................................................5DesignConsiderations......................................................................................................7JuniperNetworksDataCenterNetworkReferenceArchitecture...........................................................7SwitchingDesign—Top-of-Rack..........................................................................................9TopofRack—EX4200Switches..........................................................................................9EX4200VirtualChassisTechnologyandItsApplicationforVirtualizedServers............................................9HighAvailabilityattheCoreandAccessLayers..........................................................................10VMotionTrafficFlowConsiderations.....................................................................................11VMotionTrafficAcrosstheAccessandCoreLayers...................................................................12VMotionTrafficintheAccessLayerWithintheSameRack(128GbpsVirtualBackplane).............................12VMotionTrafficintheAccessLayerAcrossMultipleRacks(10GbEUplink)............................................13HowVMotionWorksandBestPractices...................................................................................13Implementation...........................................................................................................15ConfiguringVMwareConnectivitytotheAccessLayerInterconnectingtotheCoreLayer.................................15DataCenterAccessLayerandCoreLayerConnectionRecommendations.............................................16VMwareServerConnectionRecommendations........................................................................17ConfiguringEX4200AccessSwitches..................................................................................17ConfiguringtheEX8200EthernetSwitches...........................................................................18ConfiguringtheMX960EthernetServicesRouter.....................................................................18ConfiguringtheVirtualSwitchonVMwareESX........................................................................18GeneralRecommendedStepsforConfiguringaVirtualSwitchonVMwareESX.......................................19ConfiguringVMwareConnectivityattheAccessLayerWithintheSameRack(128GbpsVirtualChassisBackplane)................................................................................19GeneralRecommendedStepsforConfiguringtheEX4200AccessPortforVMotion...................................20ConfiguringVMwareConnectivityattheAccessLayerAcrossMultipleRacks(10GbEUplink)............................20GeneralRecommendedStepsforConfiguringUplinkforVirtualChassisTechnology..................................21Summary..................................................................................................................22AppendixA:CodeSamples...............................................................................................23EX4200SpanningTreeConfiguration...................................................................................23EX8200Configuration..................................................................................................23MX960Configuration.......................