Nexus_desig_ workshop(6.1)_FCoE

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1、UnifyFabric_FCoETechnologySinglePlatform,FlexibleDeploymentsServerAccessandVirtualizationBUTechnicalMarketingEngineerHeLingheling@cisco.comAgendaUnifiedIO-FCoE•Whatitis?•Howitworks•DesigningtheUnifiedFabric•Multi-HopFCoEPresentation_ID©2010Ciscoand/oritsaffiliates.Allrightsreserved.Cisc

2、oPublic2UnifiedFabricFibreChanneloverEthernet(FCoE)Bit0FCoEFrameFormatBit31FibreChanneloverEthernetDestinationMACAddressprovidesahighcapacityandSourceMACAddresslowercosttransportoptionfor(IEEE802.1QTag)blockbasedstorageET=FCoEVerReservedTwoprotocolsdefinedintheReservedstandardReservedR

3、eservedSOFFCoE–DataPlaneProtocolEncapsulatedFCFrame(withCRC)FIP–ControlPlaneProtocolFCoEisastandard-June3rdEOFReserved2009,theFC-BB-5workingFCSgroupofT11completeditsworkandunanimouslyapprovedaByte0Byte2197finalstandardforFCoEFCPayloadFCHeaderCRCEOFEthernetHeaderFCoEHeaderFCSPresentati

4、on_ID©2010Ciscoand/oritsaffiliates.Allrightsreserved.CiscoPublic3UnifiedFabricWhatisFibreChanneloverEthernet(FCoE)FromaFibreChannelstandpointit’sFCconnectivityoveranewtypeofcablecalled…anEthernetCloudFromanEthernetstandpointsit’sYetanotherULP(UpperLayerProtocol)tobetransportedFC-4ULPMa

5、ppingFC-4ULPMappingFC-3GenericServicesFC-3GenericServicesFC-2Framing&FlowControlFC-2Framing&FlowControlFC-1EncodingFCoELogicalEndPointFC-0PhysicalInterfaceEthernetMediaAccessControlEthernetPhysicalLayerPresentation_ID©2010Ciscoand/oritsaffiliates.Allrightsreserved.CiscoPublic4NetworkStac

6、kComparisonSCSIFCPiSCSILessOverheadthanFCIP,iSCSIFCIPFCTCPIPFCoEEthernetPHYSICALWIRESCSIiSCSIFCIPFCoEFCPresentation_ID©2010Ciscoand/oritsaffiliates.Allrightsreserved.CiscoPublic5I/OConsolidationI/OconsolidationPhase1TodayToday:I/OConsolidationwithFCoE(Mid2008)ParallelLAN/SANInfrastruct

7、ureLANReductionofserveradaptersSANASANBLANInefficientuseofNetworkSANASANBSimplificationofaccesslayer&Infrastructurecabling5+connectionsperserver–Gatewayfreeimplementationhigheradapterandcabling–fitsininstalledbaseofcostsexistingLANandSANAddsdownstreamportcosts;cap-exandop