【英文标准名称】:DraftStandardforLocalandMetropolitanAreaNetworks—VirtualBridgedLocalAreaNetworks—Revision
【原文标准名称】:局域网和城域网用标准草案.虚拟桥接局域网.修订本
【标准号】:ANSIP802.1Q/D5.0-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005-09-12
【实施或试行日期】:2005-09-12
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ForthepurposeofcompatibleinterconnectionofinformationtechnologyequipmentusingtheIEEE802MACServicesupportedbyinterconnectedIEEE802standardLANsusingdifferentoridenticalmediaaccesscontrolmethods,thisstandardspecifiestheoperationofMACBridgesthatsupportVirtualLANs(VLANs).Tothisendita)PositionsthesupportofVLANswithinanarchitecturaldescriptionoftheMACSublayer;b)DefinestheprinciplesofoperationoftheVLAN-awareBridgeintermsofthesupportandpreservationoftheMACService,andthemaintenanceofQualityofService;c)SpecifiesanEnhancedInternalSublayerServiceprovidedtotheMediaAccessIndependentfunctionsthatprovideframerelayinaVLAN-awareBridge;d)EstablishestheprinciplesandamodelofVirtualBridgedLocalAreaNetworkoperation;e)IdentifiesthefunctionstobeperformedbyVLAN-awareBridges,andprovidesanarchitecturalmodeloftheoperationofaBridgeintermsofProcessesandEntitiesthatprovidethosefunctions;f)SpecifiesaframeformatthatallowsaVLANIdentifier(VID)andpriorityinformationtobecarriedbyVLANtaggeduserdataframes;g)SpecifiestherulesthatgoverntheadditionorremovalofVLANtagstoandfromuserdataframes;h)SpecifiestherulesthatgoverntheabilitytocarryuserdataineitherCanonicalformatorNoncanonicalformatinVLAN-taggedframes;NOTE—ThemeaningsofthetermsCanonicalformatandNon-canonicalformatarediscussedinIEEEStd802.i)EstablishestherequirementsforautomaticconfigurationofVLANtopology;j)EstablishestherequirementsforVLAN-awareBridgeManagementinaVirtualBridgedLocalAreaNetwork,identifyingmanagedobjectsanddefiningmanagementoperations;k)DefinestheoperationoftheMultipleSpanningTreealgorithmandprotocol(MSTP);l)DescribestheprotocolsandproceduresnecessarytosupportinteroperationbetweenMSTandSSTBridgesinthesameVirtualBridgedLocalAreaNetworks;m)Specifiestherequirementstobesatisfiedbyequipmentclaimingconformancetothisstandard.
【中国标准分类号】:M11
【国际标准分类号】:
【页数】:300P.;A4
【正文语种】:英语