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【英文标准名称】:Acoustics-Laboratorytestsonnoiseemissionfromappliancesandequipmentusedinwatersupplyinstallations-Part1:Methodofmeasurement(ISO3822-1:1999);GermanversionENISO3822-1:1999
【原文标准名称】:声学.实验室检测供水设备管件和装置噪声.第1部分:测量方法
【标准号】:DINENISO3822-1-1999
【标准状态】:作废
【国别】:德国
【发布日期】:1999-07
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:声学;测量技术;试验;噪声辐射;给水;实验室试验;阀门;空气噪声;噪声测量;声学测量;声学试验;试验条件;声试验;噪声(环境的);给水设施;测量线
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoise;Airbornesoundlevel;Definitions;Laboratories;Laboratorytesting;Laboratorytests;Materialstesting;Measuringlines;Measuringtechniques;Noiseemission;Noiseemissions;Noise(environmental);Noisemeasurements;Normal;Sanitaryappliances;Testconditions;Testing;Testingconditions;Valves;Watersupply;Watersupplyinstallations
【摘要】:
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20;91_140_60
【页数】:14P;A4
【正文语种】:德语


【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