Laboratory Measurements of Hormones and Related Biomarkers ...
Internet related performance measurements...–can be used for measuring Internet related...
Transcript of Internet related performance measurements...–can be used for measuring Internet related...
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Internetrelatedperformancemeasurements
MartinBrandViceChairmanofETSITCINT,RapporteurofQ9/11
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Content
• General info about performance measurements
• Recommendation ITU-T Q.3960 Framework of Internet related performance measurements
• Draft Recommendation ITU-T Q.3961: Testing methodologies of Internet related performance measurements including e2e bit rate within the fixed and mobile operator’s networks
• Test implementations in Europe
• Planed Internet related performance QoS Test methods
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Generalinfoaboutinternetperformancemeasurements
• TheprojectinternetperformancemeasurementsisajointprojectbetweenITU-SG11,ETSITCINTandtheAustrianRegulatorRTR
• PublishedRecommendationsandStandards– RecommendationITU-TQ.3960:FrameworkofInternetrelated
performancemeasurements– ETSITS103222-1Referencebenchmarking,backgroundtrafficprofiles
andKPIsforVoIPandFoIP infixednetworks
• Indevelopment:– DraftRecommendationITU-TQ.3961:TestingmethodologiesofInternet
relatedperformancemeasurementsincludinge2ebitratewithinthefixedandmobileoperator’snetworks
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RecommendationITU-TQ.3960FrameworkofInternetrelatedperformance
measurements
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ITU-TQ.3960:FrameworkofInternetrelatedperformancemeasurements
• ThisRecommendationdescribestheframeworkforInternetrelatedperformance measurements– which canbeestablishedatthenationalorinternationalleveland
– canbeusedformeasuringInternetrelatedperformancemeasurementsfromthecustomertoaparticularInternetresource
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ITU-TQ.3960:FrameworkofInternetrelatedperformancemeasurements
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DraftRecommendationITU-TQ.3961:TestingmethodologiesofInternetrelated
performancemeasurementsincludinge2ebitratewithinthefixedandmobileoperator’s
networks
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DraftRecommendationITU-TQ.3961TestingmethodologiesofInternetrelatedperformance
measurementsincludinge2ebitratewithinthefixedandmobileoperator’snetworks
• ThisRecommendationdescribesthetestingproceduresofdatatransmissionspeedwithinthefixedandmobileoperator’snetworks
• TheproposedmethodologyisbasedontheconceptoftheITU-T Q.3960“FrameworkofInternetrelatedperformancemeasurements”(2016).
• ItisbasedontheproceduresdescribedintheETSITechnicalStandardETSITS103222-1:Referencebenchmarking,backgroundtrafficprofilesandKPIsforVoIPandFoIP infixednetworks
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DraftRecommendationITU-TQ.3961-Architecture
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Testingprocedures(1)
• TheMeasurementPeer(MP)isdetermineddirectlyinControllerbygeo-locatingtheMeasurementAgent(MA)anddetermininghisclosestaccesstotheInternet.IncaseofexecutingtheInternetresourcespeedtest,theMeasurementPeercanbeeitherselectedbydefaultorlettingtheuserchoseadestinationwithinalistofInternetresources.
• Thetestconsistsofsevenphaseswhicharecarriedoutoneaftereachother,i.e.phasemstartsafterphasem-1hasfinishedwithoutanypausein-between.Thatmeansthatthephasesdonotoverlap.
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Testingprocedures(2)
• Toensurecomparabledatatransmissionspeedtestconditionsinmobilenetworks,apre-loadshouldbeinitiated.Withthepre-load,themobilenetworksaresetinadefinedinitialstatei.e.CELL_DCHinUMTSandconnectedinLTE.
• Ifthedownlinkanduplinkpre-testsproceduresarenotimplemented(Phases2and5),theMeasurementAgentshallopenaTCPuplinkanddownlinkconnection.Fordownlink,theControllersendsadatablockofsizez.Foruplink,theMeasurementAgentsendsadatablockofsizez.
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DraftRecommendationITU-TQ.3961TestingexecutionWorkflow
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DraftRecommendationITU-TQ.3961TestingexecutionWorkflow
Phase1:Initialization
• InPhase1:InitializationtheMeasurementAgenttriestoconnecttotheControllerwithTCP.Inordertopassthroughcertainfirewalls,whichmightblockunencrypteddatatransmissions,HTTPSmightbenecessary.Thedatastreamsthemselvesareoptionallyunencrypted.
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DraftRecommendationITU-TQ.3961TestingexecutionWorkflowPhase2:Downlinkpre-test
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DraftRecommendationITU-TQ.3961TestingexecutionWorkflowPhase2:Downlinkpre-test
• InPhase2,theMeasurementAgentopensn connectionstotheassignedMeasurementPeer.Withineachconnection,theMeasurementAgentrequestsandtheMeasurementPeersendsadatablockofsizez.Whilethedurationofthepre-testhasnotexceededTp,theMeasurementAgentrequestsadatablockofdoublesizecomparedtothelastiterationstep.ThetransferofthelastdatablockwillbefinishedevenifthedurationhasalreadyexceededTp.Attheendofthepre-test,allconnectionsareleftoptionallyopenforfurtheruse.
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DraftRecommendationITU-TQ.3961TestingexecutionWorkflow
Phase3:Latencytest
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DraftRecommendationITU-TQ.3961TestingexecutionWorkflow
Phase3:Latencytest
• DuringthePhase3,theMeasurementAgentsendsp“pings”inshortintervalstotheMeasurementPeertotestthelatencyoftheconnection.
• TheMeasurementAgentmeasuresthetimebetweensendingandreceivingthereturnmessage,whiletheMeasurementPeeradditionallymeasuresthetimebetweensendingitsreturnmessageandtheMeasurementAgent’sreceptionresponse.TheMeasurementAgentstoresallmeasurements.
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DraftRecommendationITU-TQ.3961Workflow
Phase4:DownlinksubtestTestingexecution
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DraftRecommendationITU-TQ.3961Workflow
Phase4:DownlinksubtestTestingexecution
• Withineachofthenconnectionsopenedduringphase2,theMeasurementAgentsimultaneouslyrequestsandtheMeasurementPeercontinuouslysendsdatastreamsconsistingoffixed-sizechunksofsizes(randomlypre-generateddatawithhighentropy).
• Alltransmissionsstartatthesametime,whichisdenotedasrelativetime0.ForeachconnectiontheMeasurementAgentrecordstheelapsedtimeandtheamountofdatareceived.
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DraftRecommendationITU-TQ.3961Workflow
Phase5:Uplinkpre-test
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DraftRecommendationITU-TQ.3961Workflow
Phase5:Uplinkpre-test
• InPhase5,theMeasurementAgentopensn connectionstotheassignedMeasurementPeer.Withineachconnection,theMeasurementAgentsendsadatablockofsizez(randomlypre-generateddatawithhighentropy).Whilethedurationofthepre-testhasnotexceededTp,theMeasurementAgentsendsadatablockofdoublesizecomparedtothelastiterationstep.ThetransferofthelastdatablockwillbefinishedevenifthedurationhasalreadyexceededTp.Attheendofthepre-test,theconnectionsareleftopenforfurtheruse.
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DraftRecommendationITU-TQ.3961Workflow
Phase6:Uplinksubtest
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DraftRecommendationITU-TQ.3961Workflow
Phase6:Uplinksubtest
• Withineachofthenconnectionsopenedduringphase5,theMeasurementAgentcontinuouslysendsdatastreams.
• Alltransmissionsstartatthesametime,whichisdenotedasrelativetime0.Foreachconnection,theMeasurementPeergivesfeedbacktotheMeasurementAgentbysendingtheelapsedtimeandtheamountofdatareceived.
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DraftRecommendationITU-TQ.3961Workflow
Phase7:Finalization
• Afterfinishingalltests,theMeasurementAgentsendsthecollecteddatatotheCollector.AsoptiontheMPcanalsosendthedataaboutthemeasurementtothecollector.BothdatasetscouldbecomparedbytheCollectortocheckthequalityandintegrityoftheresult.Alltests,successfulorunsuccessful,arestoredbytheCollector.
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ImplementationsinEurope
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RTRImplementationwithWeb-Browser
• https://www.netztest.at/en/
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RTRImplementationTesting procedure
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RTRImplementationTestResults
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RTRImplementationTestResultsDiagramm
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RTRImplementation– Map
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RTRImplementation,additionalQoSFeatureswithAndroid
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https://www.netztest.at/de/Opentest?Oa60cedba-6a54-4daf-ab45-5eec6b1ee041
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RTRImplementationadditionalQoSFeatureswith Android
VoIPDetails
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RTRImplementationadditionalQoSFeatureswith Android
TraceRouteDetails
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Furtherstandardisationdevelopments
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PlanedInternetrelatedperformanceQoSTestmethods
• ThefollowingInternetrelatedperformanceQoSTestmethodsshouldbestandardized:– Websitedownloadstest- Thewebsitetestdownloadsareferencewebpage(mobile
KeplerpagebyETSI)– Unmodified content - Thistestdownloadsatestwebressource (e.g.image)andchecks
ifitwasmodifiedduringtransport.– Transparentconnection test - Thistestchecksifarequestismodifiedbyaproxyorother
middlebox.– TheDNSTest- DNSisafundamentalInternetservice.Itisusedtotranslatedomain
namestoIPaddresses.Dependingonthetestitischeckediftheserviceisavailable,iftheanswersarecorrectandhowfasttheserverresponds.
– TheTCPTest- TCPisanimportantconnectionorientedInternetprotocol.Itisusedforexampleforwebpagesore-mail.
– TheUDPTest- UDPisanimportantconnectionlessInternetprotocol.Itisusedforreal-timecommunications,e.g.forVoIPandvideo.
– TheVoIPTest- VoIP(VoiceoverIP)isatechnologyforthedeliveryofvoiceacrossIPbasednetworks.
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