Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Point-to-point multiconnection bearer control specification in a separated call and bearer environment; Part 4 : Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification

DEN/SPAN-05155-4

Širokopasovno digitalno omrežje z integriranimi storitvami (B-ISDN) – Protokol digitalne naročniške signalizacije št. 2 (DSS2) – Specifikacija krmiljenja večzveznega nosilca od točke do točke v okolju, kjer sta klic in nosilec ločena – 4. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) – Proforma specifikacija

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Status
Published
Publication Date
19-Sep-2000
Technical Committee
Current Stage
12 - Completion
Due Date
15-Sep-2000
Completion Date
20-Sep-2000
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.UPLOMHQMDBroadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Point-to-point multiconnection bearer control specification in a separated call and bearer environment; Part 4 : Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 302 093-4 Version 1.1.1SIST EN 302 093-4 V1.1.1:2005en01-januar-2005SIST EN 302 093-4 V1.1.1:2005SLOVENSKI
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SIST EN 302 093-4 V1.1.1:2005



ETSIEN302093-4V1.1.1(2000-09)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Point-to-pointmulticonnectionbearercontrolspecificationinaseparatedcallandbearerenvironment;Part4:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationSIST EN 302 093-4 V1.1.1:2005



ETSIETSIEN302093-4V1.1.1(2000-09)2ReferenceDEN/SPAN-05155-4KeywordsB-ISDN,DSS2,ATS,bearer,control,testing,PIXITETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 302 093-4 V1.1.1:2005



ETSIETSIEN302093-4V1.1.1(2000-09)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.74AbstractTestMethod.84.1DescriptionofATMused.84.2ConventionsfortestcomponentsandPCOs.85Untestabletestpurposes.96ATStoTPmap.107PCTRconformance.108PIXITconformance.109ATSConformance.10AnnexA(normative):ProtocolConformanceTestReport(PCTR)proforma.11A.1Identificationsummary.11A.1.1Protocolconformancetestreport.11A.1.2IUTidentification.11A.1.3Testingenvironment.11A.1.4Limitsandreservations.12A.1.5Comments.12A.2IUTConformancestatus.12A.3Staticconformancesummary.12A.4Dynamicconformancesummary.13A.5Staticconformancereviewreport.13A.6Testcampaignreport.13A.7Observations.13AnnexB(normative):PartialPIXITproforma.14B.1Identificationsummary.14B.2Abstracttestsuitesummary.14B.3Testlaboratory.14B.4Client(oftheTestLaboratory).15B.5SUT.15B.6Protocolinformation.16B.6.1Protocolidentification.16B.6.2Configurationtobetested.16B.6.3Testmanagementtimers.16B.6.4ParameterValues.17SIST EN 302 093-4 V1.1.1:2005



ETSIETSIEN302093-4V1.1.1(2000-09)4AnnexC(Normative):AbstractTestSuite(ATS).18C1TheTTCNGraphicalform(TTCN.GR).18C2TheTTCNMachineProcessableform(TTCN.MP).18History.19SIST EN 302 093-4 V1.1.1:2005



ETSIETSIEN302093-4V1.1.1(2000-09)5IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeServicesandProtocolsforAdvancedNetworks(SPAN).Thepresentdocumentispart4ofamulti-partstandardcoveringtheDigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Point-to-pointmulticonnectionbearercontrolspecificationinaseparatedcallandbearerenvironment,asidentifiedbelow:Part1:"Protocolspecification";Part2:"ProtocolImplementationConformanceStatement(PICS)proformaspecification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)specification";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecification".NationaltranspositiondatesDateofadoptionofthisEN:25August2000DateoflatestannouncementofthisEN(doa):30November2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31May2001DateofwithdrawalofanyconflictingNationalStandard(dow):31May2001SIST EN 302 093-4 V1.1.1:2005



ETSIETSIEN302093-4V1.1.1(2000-09)61ScopeThepresentdocumenttheAbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformafortheTBreferencepointorcoincidentSBandTBreferencepoint(asdefinedinITU-TRecommendationI.413[10])ofimplementationsconformingtothestandardsforthesignallinguser-networklayer3specificationforthebearercontrolprotocolforpoint-to-pointmulticonnectioncallsoftheDigitalSubscriberSignallingSystemNo.two(DSS2)protocolforthepan-EuropeanBroadbandIntegratedServicesDigitalNetwork(B-ISDN),EN302093-1[1].AfurtherpartofthepresentdocumentspecifiestheTestSuiteStructureandTestPurposes(TSS&TP)relatedtothisATSandpartialPIXITproforma.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ETSIEN302093-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Point-to-pointmulticonnectionbearercontrolspecificationinaseparatedcallandbearerenvironment;Part1:Protocolspecification".[2]ETSIEN302093-2:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Point-to-pointmulticonnectionbearercontrolspecificationinaseparatedcallandbearerenvironment;Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".[3]ETSIEN302093-3:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Point-to-pointmulticonnectionbearercontrolspecificationinaseparatedcallandbearerenvironment;Part3:TestSuiteStructureandTestPurposes(TSS&TP)specification".[4]ISO/IEC9646-1:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part1:Generalconcepts".[5]ISO/IEC9646-2:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part2:AbstractTestSuiteSpecification".[6]ISO/IEC9646-3:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part3:TheTreeandTabularCombinedNotation".[7]ISO/IEC9646-4:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part4:Testrealization".[8]ISO/IEC9646-5:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part5:Requirementsontestlaboratoriesandclientsfortheconformanceassessmentprocess".[9]ETSIEN302092-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Callcontrolinaseparatedcallandbearercontrolenvironment;Part1:Protocolspecification".[10]ITU-TRecommendationI.413:"B-ISDNuser-networkinterface".SIST EN 302 093-4 V1.1.1:2005



ETSIETSIEN302093-4V1.1.1(2000-09)73Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapplyinadditiontothedefinitionsinEN302092-1[9]:Abstracttestcase:RefertoISO/IEC9646-1[4]AbstractTestMethod(ATM):RefertoISO/IEC9646-1[4]AbstractTestSuite(ATS):RefertoISO/IEC9646-1[4]ImplementationUnderTest(IUT):RefertoISO/IEC9646-1[4]Lowertester(LT):RefertoISO/IEC9646-1[4]ProtocolImplementationConformanceStatement(PICS):RefertoISO/IEC9646-1[4]PICSproforma:RefertoISO/IEC9646-1[4]ProtocolImplementationeXtraInformationforTesting(PIXIT):RefertoISO/IEC9646-1[4]PIXITproforma:RefertoISO/IEC9646-1[4]PointofControlandObservation(PCO):RefertoISO/IEC9646-1[4]SystemUnderTest(SUT):RefertoISO/IEC9646-1[4]TestPurpose(TP):RefertoISO/IEC9646-1[4]UpperTester(UT):RefertoISO/IEC9646-1[4]3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ATMAbstractTestMethodATSAbstractTestSuiteB-ISDNBroadbandIntegratedServicesDigitalNetworkCMCo-ordinationMessageCPCo-ordinationPointDSS2DigitalSubscriberSignallingSystemNo.twoExTSExecutableTestSuiteIUTImplementationUnderTestLTLowerTesterMOTMeansOfTestingMTCMainTestComponentPCOPointofControlandObservationPDUProtocolDataUnitPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtraInformationforTestingPTCParallelTestComponentSUTSystemUnderTestTCPTestCo-ordinationProceduresTPTestPurposeTTCNTreeandTabularCombinedNotationUTUpperTesterSIST EN 302 093-4 V1.1.1:2005



ETSIETSIEN302093-4V1.1.1(2000-09)84AbstractTestMethod4.1DescriptionofATMusedTherequirementfortestingthenetworkIUTistofocusonthebehaviourofthenetworkIUTattheuser-networkinterfacewhereaTBreferencepointorcoincidentSBandTBreferencepointapplies.ThustheIUTisthenetworkDSS2protocolentityataparticularuser-networkinterfaceandisnotthewholenetwork.ItispossibletospecifyanATSbasedonaSingleparty(remote)testmethodforsuchanIUT.However,itisconsideredthatanATSbasedonsuchanapproachisoflimiteduseastheonlywaytospecifyIUTgeneratedPDUsistousethe"implicitsend"statement.ManyusersofsuchanATSwouldreplacethe"implicitsend"statementswithdescriptionsofthebehaviouratotherinterfaces.AnATSbasedonamulti-partytestmethodisconsideredtobemoreusefulinthatitisclosertohowarealtestsuitewouldbeconstructed.Suchatestmethodspecifiesbehaviouratmultiplenetworkinterfaces.Oneveryimportantlimitationhereisthattestsarefocussedononeparticularinterface.ThusthetestsystemismadeuponeMainTestComponent(MTC)andoneormoreParallelTestComponents(PTC),seefigure1.4.2ConventionsfortestcomponentsandPCOsMasterpartOPERATORSlavepartO(PCO)A1(CP)L0(PCO)L1(PCO)IUTNETWORKFigure1:Multi-partytestmethodInamaster/slavearrangement,theMTCisconsideredtobethemasterwhilethePTCsaretheslaves.The"slave"testersareonlyanexplicitdescriptionofhowtodealwiththeremoteinterfacesduringthetestingprocess,i.e."howtomaketheIUTsendtherequiredmessage".SIST EN 302 093-4 V1.1.1:2005



ETSIETSIEN302093-4V1.1.1(2000-09)9Thismeans,inparticular,thattheverdictwillonlybeassignedfromtheprotocolaspectsobservedontheinterfaceundertest(i.e.bythe"master"tester),asitwouldbeobservedbyaterminalconnectedtothisinterface.Afailureinthecorrelationbetweentheprotocolatthedifferentinterfacestowhichthedifferenttestersareconnected,i.e.inthemechanismofthefunctionalserviceitself,willnotcauseaFAILverdict.Forinstance,iftheIUTfailstosendamessageonthetestedinterfaceafteranotherinterfacehasreceivedtheproperstimulus,theverdictwillbeINCONCLUSIVE.TheMTCMTCAhastwofunctionsinthisconfiguration.Firstly,ithastheMTCfunctionofcontrollingtheoneormorePTCs.ThusitisresponsibleforstartingthePTCsandafterwardsco-ordinatesactivitiesbyexchangingCo-ordinationMessages(CM)withthePTCs.SecondlyitisresponsibleforthebehaviouroftheLowerTester(LT)atPCOL0.Acombinationoftheremoteandmulti-partytestmethodsisapplied.Ascanbeseenfromfigure1,severalPCOsareused.AllPCOsresideattheserviceaccesspointsbetweenlayers2and3.MTCSUTPTC1Layer3Layer2Layer1L0IUTL1Layer3Layer2Layer1ServiceproviderFigure2:Combinationoftheremoteandmulti-partytestmethodsTheMTCPCOisnamed"L0"("L"forLower)and"O".TheL0PCOisusedtocontrolandobservethebehaviouroftheIUTandtestcaseverdictsareassigneddependingonthebehaviourobservedatthisPCO.ISO/IEC9646-2[5]allowstheinformalexpressionofTestCo-ordinationProcedures(TCP)betweentheSystemUnderTest(SUT)upperlayer(s)andtheLowerTester(LT).IntheATScontainedinannexC,TCPisachievedbyuseofasecond"informal"PCO,called"O"(forOperator).ThisPCOisusedtospecifycontrolbutnotobservationabovetheIUTandconsequently,eventsatthisPCOareneverusedtogeneratetestcaseverdicts.TheuseofthisOPCOisregardedasapreferredalternativetotheuseoftheimplicitsendevent,inthatitallowstheATStospecifyinaclearandmeaningfulwaywhatactionsarerequiredtobeperformedontheIUT.AsanalternativeofL1,theOPCOisusedforanendCCenity.ThePTCPTC1usesPCOsL1.ThesePCOisusedtocontroland,inalimitedway,observethebehaviourofthenetworkequipmentatinterfaceotherthantheoneundertest.NoverdictsareassignedatthisPCO.Asstatedinapreviousparagraph,thenon-receiptofnetworkgeneratedmessagesatL0,whicharestimulatedbyeventsattheL1,willresultinINCONCLUSIVEratherthanFAILverdictsbeinga
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