ETSI EN 301 217-4 V1.1.1 (2000-11)

V interfaces at the digital Service Node (SN); Interfaces at the VB5.2 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs); Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)

DEN/SPAN-09047-4

Vmesniki V digitalnega storitvenega vozlišča (SN) - Vmesniki na referenčni točki VB5.2 za podporo širokopasovnim ali kombiniranim ozkopasovnim in širokopasovnim dostopovnim omrežjem (AN) - 4. del: Abstraktni preskuševalni niz (ATS) in dodatna informacija za preskušanje delne izvedbe protokola (PIXIT)

General Information

• Status: Published
• Publication Date: 24-Jan-2001
• Technical Committee: SPAN 9 - Access Networks and Service Node Interfaces
• Current Stage: 12 - Completion
• Due Date: 26-Jan-2001
• Completion Date: 25-Jan-2001
• Ref Project: SIST EN 301 217-4 V1.1.1:2003 - V interfaces at the digital Service Node (SN); Interfaces at the VB5.2 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs); Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.V interfaces at the digital Service Node (SN); Interfaces at the VB5.2 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs); Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)35.200Vmesniška in povezovalna opremaInterface and interconnection equipmentICS:Ta slovenski standard je istoveten z:EN 301 217-4 Version 1.1.1SIST EN 301 217-4 V1.1.1:2003en01-november-2003SIST EN 301 217-4 V1.1.1:2003SLOVENSKI
STANDARD



SIST EN 301 217-4 V1.1.1:2003



ETSIEN301217-4V1.1.1(2001-01)EuropeanStandard(Telecommunicationsseries)VinterfacesatthedigitalServiceNode(SN);InterfacesattheVB5.2referencepointforthesupportofbroadbandorcombinednarrowbandandbroadbandAccessNetworks(ANs);Part4:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)2ReferenceDEN/SPAN-09047-4KeywordsAN,ATS,PIXIT,SN,Vinterface,VB5interfaceETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°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:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)3ContentsIntellectualPropertyRights.5Foreword.5Introduction.51Scope.72References.73Definitionsandabbreviations.83.1Definitions.83.2Abbreviations.94Testarchitecture.104.1AbstractTestMethod(ATM).104.2Scopeoftestpurposes/testcasesandadditionaltesting.115ATSconventions.125.1Namingconventions.125.1.1Declarationspart.125.1.1.1Testsuitetypeandstructuredtypedefinitions-ByReference.125.1.1.2Testsuiteparameterdeclarations.125.1.1.3Testcaseselectionexpressiondefinitions.125.1.1.4Testcasevariabledeclarations.125.1.1.5Timerdeclarations.125.1.1.6ASPtypedefinitions.135.1.1.7PDUnames.135.1.2Constraintsnaming.145.1.3Simplifiedrepresentationofparametersinconstraints.145.1.4Dynamicpart.145.1.4.1Testcaseidentifier.145.1.4.2Preambleidentifier.155.1.4.3Postambleidentifier.165.1.4.4Defaultidentifier.16AnnexA(normative):ATSforBBCCatVB5.2interface.17A.1TheTTCNGraphicalform(TTCN.GR).17A.2TheTTCNMachineProcessableform(TTCN.MP).17AnnexB(normative):PartialPIXITproformaforBBCCatVB5.2interface.18B.1Identificationsummary.18B.2ATSsummary.18B.3Testlaboratory.18B.4Clientidentification.18B.5SUT.19B.6Protocollayerinformation.19B.6.1Protocolidentification.19B.6.2IUTinformation.20B.6.2.1StimulifortheIUT.20B.6.2.2PIXITParametervalues.21SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)4AnnexC(normative):ProtocolConformanceTestReport(PCTR)proformawhentestingBBCCinAN.23C.1Identificationsummary.23C.1.1Protocolconformancetestreport.23C.1.2IUTidentification.23C.1.3Testingenvironment.23C.1.4Limitsandreservation.24C.1.5Comments.24C.2IUTconformancestatus.24C.3Staticconformancesummary.24C.4Dynamicconformancesummary.25C.5Staticconformancereviewreport.25C.6Testcampaignreport.26C.7Observations.27AnnexD(normative):ProtocolConformanceTestReport(PCTR)proformawhentestingBBCCinSN.28D.1Identificationsummary.28D.1.1Protocolconformancetestreport.28D.1.2IUTidentification.28D.1.3Testingenvironment.28D.1.4Limitsandreservation.29D.1.5Comments.29D.2IUTconformancestatus.29D.3Staticconformancesummary.29D.4Dynamicconformancesummary.30D.5Staticconformancereviewreport.30D.6Testcampaignreport.31D.7Observations.32AnnexE(informative):ASN.1datadefinitionsfortheAbstractTestSuite.33AnnexF(informative):ExtendedSDLprocessdiagramsforBBCCprotocol.41History.42SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)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-partstandardcoveringtheinterfacesattheVB5.2referencepointasdescribedbelow:Part1:"Interfacespecification";Part2:"ProtocolImplementationConformanceStatement(PICS)specification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)".NationaltranspositiondatesDateofadoptionofthisEN:19January2001DateoflatestannouncementofthisEN(doa):30April2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31October2001DateofwithdrawalofanyconflictingNationalStandard(dow):31October2001IntroductionGeneralTheworkonanewbroadbandVBreferencepointconceptwasinitiatedbyETSITechnicalCommitteeSPStoconsiderpossiblenewstructuresandreferencepointsfortheconnectionofnewbroadbandandcombinednarrowband/broadbandaccessarrangementstoServiceNodes(SN),inco-operationwithotherTCs.TheVB5referencepointconcept,basedonITU-TRecommendationG.902[8],wassplitintotwovariants.ThefirstvariantbasedonanATMcross-connectwithprovisionedconnectivity,calledtheVB5.1referencepoint,isdescribedinthepresentdocument.Theothervariantwhichfurtherenableson-demandconnectivitywithintheAN,calledtheVB5.2referencepoint,isbyEN301217-1[1].SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)6RelationshipbetweentheVB5.1andVB5.2referencepointconceptsVB5.2extendsthecapabilitiesattheVB5.1referencepointtoincludeon-demandconnectivityintheANunderthecontrolofSN.ThemajorcommonfeaturesbetweentheVB5.1andVB5.2interfacesare:-bothVB5interfacessupportB-ISDNaswellasnarrowbandandothernon-B-ISDNcustomeraccesstypes;-bothVB5interfacessupportATMmultiplexing/cross-connectingintheANattheVPand/orVClevel.TheRealTimeManagementCo-ordination(RTMC)protocoliscommonfortheVB5.1andtheVB5.2referencepoints.SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)71ScopeThepresentdocumentspecifiestheAbstractTestSuite(ATS),theAbstractTestMethod(ATM),ATSconventions,thepartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformafortestingtheconformityofanimplementationtotheBBCCspecificationofinterfacesattheVB5.2referencepointbetweenanAccessNetwork(AN)andaServiceNode(SN).Aproformaforthetestingreport(PCTR)isalsoincluded.Thereareinfacttwoseparatetestsuites,aswellastwoPCTRproformas,oneversionfortestingtheconformityofanANimplementation,theotheroneforaSN.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIEN301217-1(V1.2.2):"VinterfacesatthedigitalServiceNode(SN);InterfacesattheVB5.2referencepointforthesupportofbroadbandorcombinednarrowbandandbroadbandAccessNetworks(ANs);Part1:Interfacespecification".[2]ETSIEN301217-2(V1.1.3):"VinterfacesatthedigitalServiceNode(SN);InterfacesattheVB5.2referencepointforthesupportofbroadbandorcombinednarrowbandandbroadbandAccessNetworks(ANs);Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".[3]ETSIEN301217-3(V1.1.1):"VinterfacesatthedigitalServiceNode(SN);InterfacesattheVB5.2referencepointforthesupportofbroadbandorcombinednarrowbandandbroadbandAccessNetworks(ANs);Part3:TestSuiteStructureandTestPurposes(TSS&TP)".[4]ETSIETS300406(1995):"MethodsforTestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;Standardizationmethodology".[5]ISO/IEC9646-1:"Informationtechnology-Opensystemsinterconnection-Conformancetestingmethodologyandframework-Part1:Generalconcepts".[6]ISO/IEC9646-2:"Informationtechnology-Opensystemsinterconnection-Conformancetestingmethodologyandframework-Part2:Abstracttestsuitespecification".[7]ISO/IEC9646-7:"Informationtechnology-Opensystemsinterconnection-Conformancetestingmethodologyandframework-Part7:ProtocolImplementationConformanceStatement".[8]ITU-TRecommendationG.902:"FrameworkRecommendationonfunctionalaccessnetworks(AN)Architectureandfunctions,accesstypes,managementandservicenodeaspects".[9]ISO/IEC9646:"Informationtechnology-Opensystemsinterconnection-Conformancetestingmethodologyandframework".[10]ITU-TRecommendationM.3010:"PrinciplesforaTelecommunicationsmanagementnetwork".[11]ITU-TRecommendationQ.2931:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)-DigitalSubscriberSignallingSystemNo.2(DSS2)-User-NetworkInterface(UNI)-Layer3specificationforbasiccall/connectioncontrol".SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)8[12]ETSIEN300443-1(V1.3.5):"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;B-ISDNuser-networkinterfacelayer3specificationforbasiccall/bearercontrol;Part1:Protocolspecification[ITU-TRecommendationQ.2931(1995),modified]".[13]ETSIEN301067-1(V1.1.3):"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;Negotiationduringcall/connectionestablishmentphase;Part1:Protocolspecification[ITU-TRecommendationQ.2962(1996),modified]".[14]ITU-TRecommendationQ.2961.3:"DigitalSubscriberSignallingSystemNo.2-Additionaltrafficparameters:Signallingcapabilitiestosupporttrafficparametersfortheavailablebitrate(ABR)ATMtransfercapability".[15]ITU-TRecommendationQ.2961.5:"DigitalsubscribersignallingsystemNo.2-Additionaltrafficparameters:Additionaltrafficparametersforcelldelayvariationtoleranceindication".[16]ETSIEN301005-4(V1.1.2):"VInterfacesattheDigitalServiceNode(SN);InterfacesattheVB5.1ReferencePointfortheSupportofBroadbandorCombinedNarrowbandandBroadbandAccessNetworks(ANs);Part4:AbstractTestSuite(ATS)andPartialProtocolImplementationeXtraInformationforTesting(PIXIT)ProformaSpecification".[17]ETSIEN301068:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.Two(DSS2)Protocol;ConnectionCharacteristics;ATMTransferCapabilityandTrafficParameterIndication".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingdefinitionsapply:-termsdefinedinEN301217-1[1];-termsdefinedinISO/IEC9646-1[5]andinISO/IEC9646-2[6].Inparticular,thefollowingtermsdefinedinISO/IEC9646[9]apply:AbstractTestSuite(ATS)AbstractTestMethod(ATM)ImplementationConformanceStatement(ICS)ImplementationUnderTest(IUT)ImplementationeXtraInformationforTesting(IXIT)LowerTester(LT)PICSproformaPIXITproformaPointofControlandObservation(PCO)ProtocolImplementationConformanceStatement(PICS)ProtocolImplementationeXtraInformationforTesting(PIXIT)ServiceAccessPoint(SAP)SinglePartyTesting(SPyT)SystemUnderTest(SUT)UpperTester(UT)TTCN.GRTTCN.MPProtocolConformanceTestReport(PCTR)PCTRproformaSIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)93.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:AALATMAdaptationLayerAAL-SAPAAL-ServiceAccessPointANAccessNetworkATMAsynchronousTransferModeBBCCBroadbandBearerConnectionControlB-ISDNBroadbandISDNB-ISUPBroadbandISDNSignallingUserPartB-UNIBroadbandUNIBABasic(rate)AccessCPECustomerPremisesEquipmentCPNCustomerPremisesNetworkETEquipmentTerminalFSMFiniteStateMachineIDIdentityIEInformationElementINIInter-NetworkInterfaceISDNIntegratedServicesDigitalNetworkLANLocalAreaNetworkLELocalExchangeLMELayerManagementEntityLMILocalManagementInterfaceLSPLogicalServicePortLUPLogicalUserPortMIBManagementInformationBaseMSCMessageSequenceChartN-ISDNNarrowbandISDNNNINetwork-to-NetworkInterfaceOAMOperationsAdministrationandMaintenancePDHPlesiochronousDigitalHierarchyPDUProtocolDataUnitsPSPPhysicalServicePortPSTNPublicSwitchedTelephoneNetworkPUPPhysicalUserPortQ3"Q"managementinterfacereferencepointasITU-TRecommendationM.3010[10]RTMCRealTimeManagementCo-ordinationSAALSignallingATMAdaptationLayerSAPServiceAccessPointSARSegmentationandReassemblySDHSynchronousDigitalHierarchySDLSpecificationandDescriptionLanguageSDUServiceDataUnitsSNServiceNodeSNIServiceNodeInterfaceSPServicePortSPSSignallingProtocolsandSwitchingSSCFServiceSpecificCo-ordinationFunctionSSCOPServiceSpecificConnectionOrientedProtocolTCTechnicalCommitteesTETerminalEquipmentTMNTelecommunicationManagementNetworkTPTransmissionPathUNIUser-NetworkInterfaceVBBroadband"V"referencepointVCVirtualChannel(ATM)VCCVCConnectionVCCTVCCTerminationVCEVirtualChannelEntitySIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)10VCIVCIdentifierVCLVCLinkVCMEVCMultiplexEntityVPVirtualPathVPCVPConnectionVPCIVPConnectionIdentifierVPCTVPCTerminationVPEVPEntityVPIVPIdentifierVPLVPLinkVPMEVPMultiplexEntityVUPVirtualUserPort4Testarchitecture4.1AbstractTestMethod(ATM)ThisclausedescribestheAbstractTestMethod(ATM)andthePointofControlandObservation(PCO)usedtotesttheVB5.2BBCCprotocolfortheANandSNcomponents.TheremotetestmethodisusedforVB5.2BBCCconformancetesting,sincetheVB5.2implementationsarenotmandatedtoofferadirectaccesstotheupperserviceboundary(i.e.tothe"mee"and"cee"serviceprimitives).Theco-ordinationprocedurescanonlybeexpressedinaninformalway.SUTServiceProviderDLL&PHLlayersLTControlandDLconnectionendpointsVB5TestSystemIUTVB5-RTMCDL-DATAPCO/DSAPUTVB5BBCCPDUsFigure1:RemotesinglelayertestmethodappliedtotheVB5.2BBCCtestingLT:ALowerTester(LT)islocatedintheVB5.2testsystem.ItcontrolsandobservesthebehavioursoftheIUT.DSAP:AuniqueDatalinkServiceAccessPoint(DSAP)isdefinedattheVB5.2interfaceandcommonlyusedforexchangingservicedataoftheBBCCprotocolfunctionalentities.PCO:ThePCOforBBCCtestingislocatedontheDSAP.AlltesteventsatthePCOarespecifiedintermsofdatalinkAbstractServicePrimitives(ASPs)andnetworklayerPDUs.UT:NoexplicitUpperTester(UT)existsinthetestsystem.However,theSUTneedstocarryoutsomeUTfunctionstoachievesomeeffectsoftestco-ordinationprocedures.DesigningATS,thecapabilityoftheVB5.2applicationfunctionsmaybetakenintoaccount.ThecontrolsoftheIUTwillbeimpliedorinformallyexpressedintheATS,butnoassumptionshallbemaderegardingtheirfeasibilityorrealization.AnexampleofsuchinformalcontrolscouldbetoprovokestartupoftheIUTintheSN.AnexampleofimpliedcontrolsistheautomaticresponseofVB5.2applicationfunctionsintheAN.SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)11VB5-BBCC:ThePDUconveyingthisinformationwillbetransferredtoandfromthetesterviaasingle,dedicatedvirtualconnection.4.2Scopeoftestpurposes/testcasesandadditionaltestingThespecifiedIUTbehaviourcannotbefullycontrolledandobservedviaasinglePCO.Additionaltestingisthusrequiredtocoversuchbehaviour(insomecasesashortdescriptionofsuchadditionaltestingrequirementshasbeenappendedtotherelatedBBCCtestpurposes).Theactualtestingoftheserequirementscanonlybeperformedifadditionalmeansareprovidedtoaccessinternaldata,whichcannotbeinterrogatedviaBBCCmessages.Onewayofperformingthisistouseanad-hoctesterloadedintotheSUT,ifavailable.Thisisnottypicallythecase.ApracticalapproachistoconsiderthatanyNetworkElementcomprisesseveralprotocolinterfaces,eachofwhichisfirsttestedattheindividualprotocollevel(again,theseteststypicallyhavetoleaveoutanumberofprotocolrequirements,ifaremotetestmethodisused).Asecondhierarchicalleveloftesting(seefigure2)couldcoverasubstantialnumberofsuchuntestedrequirementsbycheckinginteractionsbetweentwoormoreprotocols,whichhavepassedindividualconformancetesting.Thisishoweveroutsidethescopeofthepresentdocument.ANorSNSystemTestDSS-2ProtocolProtocolQ3PlaneMan.ProtocolBBCCVB5.2(note1)NOTE:TheDSS-2protocolisnotterminatedintheAN.Figure2:ExampleofhierarchicaltestarchitectureappliedbeyondVB5.2testingSIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)125ATSconventionsThisclausedescribestheconventionsappliedtodefinetheATSandgivesthenamingconventionschosenforthedifferentelementsoftheATS.TheATSconventionsareintendedtogiveabetterunderstandingoftheATSbuttheydescribealsotheconventionsmadeforthedevelopmentoftheATS,thusforanylatermaintenancepurposesorfurtherdevelopmentoftheATS,theconventionsdescribedinthisclauseshallbeconsidered.5.1Namingconventions5.1.1DeclarationspartThisclausedescribesthenamingconventionschosenfortheelementsoftheATSdeclarationspart.5.1.1.1Testsuitetypeandstructuredtypedefinitions-ByReferenceInordertoavoidmisalignmentproblemswiththestandard,allthetypesusedinthisATShavebeendefinedbyreference.ThesameASN1filecontainingthestandardtypedefinitionshasbeenusedasmodulecontainingthereferencedtypedefinitions.EXAMPLE:TypeNameTypeReferenceModuleIdentifierTransIdTransIdDataModule5.1.1.2TestsuiteparameterdeclarationsThetestsuiteparameteridentifiersarecomposedofstringsinuppercaselettersandseparatedbyunderscores.IfthetestsuiteparameterreferencesaPIXITitem,theprefix"PIX_"isused.EXAMPLE:ParameterNameTypePIX_LSP_VPCI_1VPCI5.1.1.3TestcaseselectionexpressiondefinitionsThetestcaseselectionexpressionsarebasedonPICSorPIXITtestsuiteparameterdefinitions.EXAMPLE1:PIC_AN_multipointtakingthevalueTRUEorFALSE,basedonaPICSstatement.EXAMPLE2:PIX_MODIFY_COMP_REJtakingthevalueTRUEorFALSE,basedonaPIXITstatement.5.1.1.4TestcasevariabledeclarationsThetestcasevariableidentifiersarecomposedofstringinlowercaselettersstartingbythelowercasestring"TCV_".EXAMPLE:TCV_transIdVal5.1.1.5TimerdeclarationsSeveralkindsoftimerscanbedistinguished:1)standardized:Thosedefinedinthestandard,e.g.T_Alloc,usethesamenameasinthestandard,beginningwithacapital"T".TheirdurationisdefinedinthePIXITundersamename,forexamplePIX_T_Alloc.SIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)132)fortestingsupervision:Inordertocontrolthedurationofindividualtestcases,aspecifictimeranditsduration,PIX_T_supervision,isdefined.3)foroperatoraction:InordertocontrolthedurationofactionrequiredtosetuptheIUTintoagivenstate,ortogenerateaspecificactionontheIUT,atimerT_Operatorisdefined.5.1.1.6ASPtypedefinitionsASPdefinitionsfollowthePDUspecificationwhenacorrespondingdefinitionexists,withtheadditionofaprefixlikeSN.EXAMPLE:SN_AddBranch5.1.1.7PDUnamesThePDUnamesusedintheTTCNtestsuitearetheonesusedintheASN.1declarations.Thecorrespondencewiththenamesusedinthespecificationsisgivenintable1.Table1PDUnamesinSpecificationsPDUnamesinTestSuiteALLOCAllocALLOC_ACCAllocAccALLOC_REJAllocRejALLOC_COMPAllocCompALLOC_COMP_ACCAllocCompAccALLOC_COMP_REJAllocCompRejDEALLOCDeallocDEALLOC_ACCDeallocAccBBCC_RESETBbccResetBBCC_RESET_ACCBbccResetAccBBCC_RESET_REJBbccResetRejBBCC_PRESYNCBbccPresyncBBCC_PRESYNC_ACCBbccPresyncAccBBCC_PRESYNC_REJBbccPresyncRejAN_FAULTAnFaultAN_FAULT_ACCAnFaultAccPROTOCOL_ERRORProtocolErrorMODIFYModifyMODIFY_ACCModifyAccMODIFY_REJModifyRejMODIFY_COMPModifyCompMODIFY_COMP_ACCModifyCompAccMODIFY_COMP_REJModifyCompRejMODIFY_ABORTModifyAbortMODIFY_ABORT_ACCModifyAbortAccMODIFY_ABORT_REJModifyAbortRejADD_BRANCHAddBranchADD_BRANCH_ACCAddBranchAccADD_BRANCH_REJAddBranchRejUPDATE_BRANCHUpdateBranchUPDATE_BRANCH_ACCUpdateBranchAccUPDATE_BRANCH_REJUpdateBranchRejDROP_BRANCHDropBranchDROP_BRANCH_ACCDropBranchAccDROP_BRANCH_REJDropBranchRejSIST EN 301 217-4 V1.1.1:2003



ETSIETSIEN301217-4V1.1.1(2001-01)145.1.2ConstraintsnamingThisclausedescribesthenamingconventionschosenfortheelementsoftheATSconstraintspart.Constraintidentifierscommencewithlowercasec,followedbythePDU_TYPE,followedbyanumericalvaluelike001,002,etc.TypeDefinitionConstraintDefinitionExampleALLOCc_ALLOC_002ALLOC_COMPc_ALLOC_COMP_001Theconstraintvaluesaredefined,showingthespecifiedvalues,like‘49’Hforprotocoldiscriminator,orthevaluestobechosenbytheimplementer(PIX_xxforPIXITvalues)foreachInformationElement(IE).5.1.3SimplifiedrepresentationofparametersinconstraintsInordertoreducethecomplexityofconstraintdefinitions,somepackedparametershavebeenintroduced.TheseparametersarealloftypeOCTETSTRING.Theyrepresenttheconcatenationofseveralindividualfieldsunderauniquename.IntheTTCNconstraints,thevalueassignedtosuchparametersmayeitherappearexplicitly,(e.g.asahexadecimalvalue),oritmayberepresentedsymbolically,intheformofaPIXITparametername.Therearetwoclassesofpackedparameters:Oneclasscomprises5packedparameterswhicharespecifictotheBBCCprotocolandwhosecontentisderivedfromtheVB5.2interfacespecificationitself.Undernormalcircumstances,theparametersmsgCompatIndandiECompatInd,arealwaysassignedthevalue‘80’HwhileparametertransIdLengthisalwaysassignedthevalue‘03’H.Thelasttwo,usrPortConnIdIEOctet5andsrvcPortConnIdIEOctet5canbeassignedasmallnumberofdistinctvalues,dependingontheleveloftheidentifier(completeport,VPCIonly,VPCI/VCIcombination).Thesecondclasscontains7packedparameterswhosenameisoftype"XXX_contents".TheseparametersareusedinInformationElementsdefinedindetailinotherstand
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