ITU-TE.459(031998)(英)Measurementsandmetricsforcharacterizing…….pdf

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1、INTERNATIONALTELECOMMUNICATIONUNIONITU-TE.459TELECOMMUNICATION(03/98)STANDARDIZATIONSECTOROFITUSERIESE:OVERALLNETWORKOPERATION,TELEPHONESERVICE,SERVICEOPERATIONANDHUMANFACTORSQualityofservice,networkmanagementandtrafficengineering–Networkmanagement–Checki

2、ngthequalityoftheinternationaltelephoneserviceMeasurementsandmetricsforcharacterizingfacsimiletransmissionperformanceusingnon-intrusivetechniquesITU-TRecommendationE.459(PreviouslyCCITTRecommendation)ITU-TE-SERIESRECOMMENDATIONSOVERALLNETWORKOPERATION,TEL

3、EPHONESERVICE,SERVICEOPERATIONANDHUMANFACTORSOPERATION,NUMBERING,ROUTINGANDMOBILESERVICESINTERNATIONALOPERATIONOPERATIONALPROVISIONSRELATINGTOCHARGINGANDACCOUNTINGINTHEINTERNATIONALTELEPHONESERVICEUTILIZATIONOFTHEINTERNATIONALTELEPHONENETWORKFORNON-TELEPH

4、ONYAPPLICATIONSISDNPROVISIONSCONCERNINGUSERSE.330–E.399QUALITYOFSERVICE,NETWORKMANAGEMENTANDTRAFFICENGINEERINGNETWORKMANAGEMENTInternationalservicestatisticsE.400–E.409InternationalnetworkmanagementE.410–E.419Checkingthequalityoftheinternationaltelephones

5、erviceE.420–E.489TRAFFICENGINEERINGQUALITYOFTELECOMMUNICATIONSERVICES:CONCEPTS,MODELS,OBJECTIVESANDDEPENDABILITYPLANNINGForfurtherdetails,pleaserefertoITU-TListofRecommendations.ITU-TRECOMMENDATIONE.459MEASUREMENTSANDMETRICSFORCHARACTERIZINGFACSIMILETRANS

6、MISSIONPERFORMANCEUSINGNON-INTRUSIVETECHNIQUESSummaryThisRecommendationprovidesspecificationsforthewaysinwhichfacsimilecallscanbenon-intrusivelymonitored.Non-intrusivefaxperformancemonitoringisdonefromwithinanetwork,andcanprovideabroadviewoffaxperformance

7、overthenetworkbeingmonitored.Thesearesomesignificantdifferencesbetweenend-to-endfaxperformancemeasurementandnon-intrusivemeasurement.Thechiefadvantageofnon-intrusivemeasurementsisthattheyprovideaviewofperformanceencompassingarangeofphysicallocationsandter

8、minalsthatcannotbepracticallyachievedwhentestingend-to-end.SourceITU-TRecommendationE.459waspreparedbyITU-TStudyGroup2(1997-2000)andwasapprovedundertheWTSCResolutionNo.1procedureonthe9thofMarch1998.RecommendationE.4