ITU-TE.728(031998)(英)Grade-of-serviceparameters…….pdf

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1、INTERNATIONALTELECOMMUNICATIONUNIONITU-TE.728TELECOMMUNICATION(03/98)STANDARDIZATIONSECTOROFITUSERIESE:OVERALLNETWORKOPERATION,TELEPHONESERVICE,SERVICEOPERATIONANDHUMANFACTORSQualityofservice,networkmanagementandtrafficengineering–Trafficengineering–ISDNtrafficengi

2、neeringGrade-of-serviceparametersforB-ISDNsignallingITU-TRecommendationE.728(PreviouslyCCITTRecommendation)ITU-TE-SERIESRECOMMENDATIONSOVERALLNETWORKOPERATION,TELEPHONESERVICE,SERVICEOPERATIONANDHUMANFACTORSOPERATION,NUMBERING,ROUTINGANDMOBILESERVICESINTERNATIONALO

3、PERATIONOPERATIONALPROVISIONSRELATINGTOCHARGINGANDACCOUNTINGINTHEINTERNATIONALTELEPHONESERVICEUTILIZATIONOFTHEINTERNATIONALTELEPHONENETWORKFORNON-TELEPHONYAPPLICATIONSISDNPROVISIONSCONCERNINGUSERSE.330–E.399QUALITYOFSERVICE,NETWORKMANAGEMENTANDTRAFFICENGINEERINGNET

4、WORKMANAGEMENTTRAFFICENGINEERINGMeasurementandrecordingoftrafficE.490–E.505ForecastingoftrafficE.506–E.509DeterminationofthenumberofcircuitsinmanualoperationE.510–E.519Determinationofthenumberofcircuitsinautomaticandsemi-automaticoperationE.520–E.539GradeofserviceE

5、.540–E.599DefinitionsE.600–E.699ISDNtrafficengineeringE.700–E.749MobilenetworktrafficengineeringE.750–E.799QUALITYOFTELECOMMUNICATIONSERVICES:CONCEPTS,MODELS,OBJECTIVESANDDEPENDABILITYPLANNINGForfurtherdetails,pleaserefertoITU-TListofRecommendations.ITU-TRECOMMENDA

6、TIONE.728GRADE-OF-SERVICEPARAMETERSFORB-ISDNSIGNALLINGSummaryThisRecommendationdefinesthegrade-of-serviceparametersforB-ISDNsignallingfortheNetworkNode-Interface.Itconsidersbothlink-by-linkandedge-to-edgeB-ISDNprotocolfunctions.Referenceconnectionsfortheseprotocolf

7、unctionsareprovided,andgrade-of-servicetargetvaluesaregivenbasedonthesereferenceconnections.SourceITU-TRecommendationE.728waspreparedbyITU-TStudyGroup2(1997-2000)andwasapprovedundertheWTSCResolutionNo.1procedureonthe9thofMarch1998.RecommendationE.728(03/98)iFOREWOR

8、DITU(InternationalTelecommunicationUnion)istheUnitedNationsSpecializedAgencyinthefieldoftelecommuni-cations.TheITUTelecommunicationStandardizatio