BS ISO/IEC 10028-1993 信息技术.系统间通信和信息交换.网络层中间系统的中继功能定义

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【英文标准名称】:Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-Definitionoftherelayingfunctionsofanetworklayerintermediatesystem
【原文标准名称】:信息技术.系统间通信和信息交换.网络层中间系统的中继功能定义
【标准号】:BSISO/IEC10028-1993
【标准状态】:现行
【国别】:英国
【发布日期】:1994-03-15
【实施或试行日期】:1994-03-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:通信程序;数据处理;定义;信息交流;信息交换;信息技术;网络;网络互连;网络层;开放系统互连;OSI;通信;传输程序
【英文主题词】:Communicationprocedures;Dataprocessing;Definition;Definitions;Informationexchange;Informationinterchange;Informationtechnology;Network;Networkinterconnection;Networklayers;Opensystemsinterconnection;OSI;Telecommunications;Transmissionprocedures
【摘要】:ThisInternationalStandarddefinestheabstractoperationoftherelayingfunctionsofaNetworkentityinanintermediatesystem,asneededtosupporttheOSIconnection-modeNetworkservice.Astheprincipalmeansforexpressingthedefinition,theconceptoftheNetworkInternalLayerServiceisused.ThisissimilartoanOSIlayerservice,butadaptedtoexpressingtheinvariantsoftheinformationflowwithinandthroughoutthelayer,ratherthanjusttheexternalfunctionalityofthelayerprovidedbetweentwoserviceaccesspoints.ThedefinitionincludestheinvocationofNetworkroutingfunctionsasanecessaryelementoftheNetworkrelayingfunctions,butitdoesnotspecifyhowthoseroutingfunctionsaretoberealized.ThedefinitionofNetworkrelayingfunctionsappliesbothtoasubnetworksupportingallelementsoftheNetworkService(asdefinedinISO8648),andtoaNetworkrelaysysteminterconnectingtwosubnetworksaccordingtoanyofthethreeapproachesdefinedinISO8648.Inthecaseofthehop-by-hopharmonizationapproachtointerconnection,thedefinitionofNetworkrelayingfunctionsappliestotheresultofharmonizingthesubnetworkservice(s)totheleveloftheNetworkService.Theharmonizationfunctions,whichrequireprotocolmechanismstobespecified,areoutsidethescopeofthisInternationalStandard.ThisInternationalStandardisintendedforuseinguidingthedesignandapplicationofrealinterworkingunitsandrealsubnetworks(eg,localareanetworksandprivatepacketswitchednetworks)whicharetosupporttheOSINS.ItisalsointendedforuseinthedevelopmentofstandardsfortheNetworklayer,toensurethattherequirementsderivingfromtheneedforNetworklayerrelayingaretakenintoaccount.TherearenorequirementsforconformancetothisInternationalStandard.NOTE—ConformancerequirementsrelatingtoNetworklayerrelayingaretobefoundinthespecificationsformappingsbetweentheNctworkInternalLayerServiceandNetworkprotocols.
【中国标准分类号】:L79
【国际标准分类号】:33_040_40;35_110
【页数】:40P.;A4
【正文语种】:英语