ITU-T I.113 (06 1997) (英) Vocabulary of terms for

INTERNATIONALTELECOMMUNICATIONUNION)454)TELECOMMUNICATIONSTANDARDIZATIONSECTOROFITU(06/97)SERIESI:INTEGRATEDSERVICESDIGITALNETWORKGeneralstructure–Terminology6OCABULARYOFTERMSFORBROADBANDASPECTSOF)3$.ITU-TRecommendationI.113(PreviouslyCCITTRecommendation)ITU-TI-SERIESRECOMMENDATIONS).4%'2!4%$3%26)#%3$)')4!,.%47/2+Forfurtherdetails,pleaserefertoITU-TListofRecommendations.GENERALSTRUCTUREI.100–I.1994ERMINOLOGY))DescriptionofISDNsI.120–I.129GeneralmodellingmethodsI.130–I.139TelecommunicationnetworkandserviceattributesI.140–I.149GeneraldescriptionofasynchronoustransfermodeI.150–I.199SERVICECAPABILITIESI.200–I.299ScopeI.200–I.209GeneralaspectsofservicesinISDNI.210–I.219CommonaspectsofservicesintheISDNI.220–I.229BearerservicessupportedbyanISDNI.230–I.239TeleservicessupportedbyanISDNI.240–I.249SupplementaryservicesinISDNI.250–I.299OVERALLNETWORKASPECTSANDFUNCTIONSI.300–I.399NetworkfunctionalprinciplesI.310–I.319ReferencemodelsI.320–I.329Numbering,addressingandroutingI.330–I.339ConnectiontypesI.340–I.349PerformanceobjectivesI.350–I.359ProtocollayerrequirementsI.360–I.369GeneralnetworkrequirementsandfunctionsI.370–I.399ISDNUSER-NETWORKINTERFACESI.400–I.499ApplicationofI-seriesRecommendationstoISDNuser-networkinterfacesI.420–I.429Layer1RecommendationsI.430–I.439Layer2RecommendationsI.440–I.449Layer3RecommendationsI.450–I.459Multiplexing,rateadaptionandsupportofexistinginterfacesI.460–I.469AspectsofISDNaffectingterminalrequirementsI.470–I.499INTERNETWORKINTERFACESI.500–I.599MAINTENANCEPRINCIPLESI.600–I.699B-ISDNEQUIPMENTASPECTSI.700–I.799ATMequipmentI.730–I.749ManagementofATMequipmentI.750–I.799ITU-TRECOMMENDATIONI.113VOCABULARYOFTERMSFORBROADBANDASPECTSOFISDNSummaryRecommendationI.113,VocabularyoftermsforbroadbandaspectsofISDN,hasbeenrevisedduringthisstudyperiod.Newtermshavebeenadded.Allthetermsarenowclassifiedintoalogicalorderinsteadofanalphabeticaloneandaresplitintoeightsubclauses:Subclause2.1:ServicesSubclause2.2:TransfermodesSubclause2.3:InterfacesSubclause2.4:ChannelsSubclause2.5:TransportnetworkstructureSubclause2.6:OperationandmaintenanceSubclause2.7:TrafficandresourcemanagementSubclause2.8:QualityofserviceSourceITU-TRecommendationI.113wasrevisedbyITU-TStudyGroup13(1997-2000)andwasapprovedundertheWTSCResolutionNo.1procedureonthe20thofJune1997.iiRecommendationI.113(06/97)FOREWORDITU(InternationalTelecommunicationUnion)istheUnitedNationsSpecializedAgencyinthefieldoftelecommunications.TheITUTelecommunicationStandardizationSector(ITU-T)isapermanentorganoftheITU.TheITU-Tisresponsibleforstudyingtechnical,operatingandtariffquestionsandissuingRecommendationsonthemwithaviewtostandardizingtelecommunicationsonaworldwidebasis.TheWorldTelecommunicationStandardizationConference(WTSC),whichmeetseveryfouryears,establishesthetopicsforstudybytheITU-TStudyGroupswhich,intheirturn,produceRecommendationsonthesetopics.TheapprovalofRecommendationsbytheMembersoftheITU-TiscoveredbytheprocedurelaiddowninWTSCResolutionNo.1.InsomeareasofinformationtechnologywhichfallwithinITU-T’spurview,thenecessarystandardsarepreparedonacollaborativebasiswithISOandIEC.NOTEInthisRecommendation,theexpressionAdministrationisusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.INTELLECTUALPROPERTYRIGHTSTheITUdrawsattentiontothepossibilitythatthepracticeorimplementationofthisRecommendationmayinvolvetheuseofaclaimedIntellectualPropertyRight.TheITUtakesnopositionconcerningtheevidence,validityorapplicabilityofclaimedIntellectualPropertyRights,whetherassertedbyITUmembersorothersoutsideoftheRecommendationdevelopmentprocess.AsofthedateofapprovalofthisRecommendation,theITUhad/hadnotreceivednoticeofintellectualproperty,protectedbypatents,whichmayberequiredtoimplementthisRecommendation.However,implementorsarecautionedthatthismaynotrepresentthelatestinformationandarethereforestronglyurgedtoconsulttheTSBpatentdatabase.ITU1997Allrightsreserved.Nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromtheITU.RecommendationI.113(06/97)iiiCONTENTSPage1Introduction.................................................................................................................12Vocabularyofterms....................................................................................................12.1Services.......................................................................................................................12.2Transfermodes............................................................................................................52.3Interfaces.....................................................................................................................62.4Channels......................................................................................................................102.5Transportnetworkstructure........................................................................................1