ITU-T G.1030 (11 2005) (英) Estimating end-to-end performance……

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1、InternationalTelecommunicationUnionITU-TG.1030TELECOMMUNICATION(11/2005)STANDARDIZATIONSECTOROFITUSERIESG:TRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKSQualityofserviceandperformance–Genericanduser-relatedaspectsEstimatingend-to-endperformanceinIPnetworksfordataappl

2、icationsITU-TRecommendationG.1030ITU-TG-SERIESRECOMMENDATIONSTRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKSINTERNATIONALTELEPHONECONNECTIONSANDCIRCUITSG.100–G.199GENERALCHARACTERISTICSCOMMONTOALLANALOGUECARRIER-G.200–G.299TRANSMISSIONSYSTEMSINDIVIDUALCHARACTERISTICS

3、OFINTERNATIONALCARRIERTELEPHONEG.300–G.399SYSTEMSONMETALLICLINESGENERALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONEG.400–G.449SYSTEMSONRADIO-RELAYORSATELLITELINKSANDINTERCONNECTIONWITHMETALLICLINESCOORDINATIONOFRADIOTELEPHONYANDLINETELEPHONYG.450–G.499TRANSMISSIONMEDIACH

4、ARACTERISTICSG.600–G.699DIGITALTERMINALEQUIPMENTSG.700–G.799DIGITALNETWORKSG.800–G.899DIGITALSECTIONSANDDIGITALLINESYSTEMG.900–G.999QUALITYOFSERVICEANDPERFORMANCE–GENERICANDUSER-RELATEDG.1000–G.1999ASPECTSTRANSMISSIONMEDIACHARACTERISTICSG.6000–G.6999DATAOVERTRANSPORT–GENER

5、ICASPECTSG.7000–G.7999ETHERNETOVERTRANSPORTASPECTSG.8000–G.8999ACCESSNETWORKSG.9000–G.9999Forfurtherdetails,pleaserefertothelistofITU-TRecommendations.ITU-TRecommendationG.1030Estimatingend-to-endperformanceinIPnetworksfordataapplicationsSummaryThisRecommendationprovidesaf

6、rameworkoftoolstoobtainIPnetworkperformance,estimatetheperformanceofuserapplications,andapplyperceptualmodelstogaugeusersatisfactionwiththeend-to-endperformance.Theuser-perceivedperformanceofdataapplicationsonpacketnetworksisdependentonmanyfactors,includingtheend-to-endper

7、formanceofthepacketnetwork,theapplication'sdependencyonthecommunicationsnetwork,theperformanceoftheterminalsandotherdevicesbeyondthepurviewofthenetworkoperator(s),andtheuser'staskandtheextentofuserinteractionwiththeapplication.Networkdesignerstakethesefactorsintoaccounttoa

8、ssureusersatisfaction.Oncetheapplicationperformancehasbeenestimated,thenperceptualmodelsc