SIST EN 300 347-6 V3.1.1:2005

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vmesniki V pri digitalnih krajevnih centralah (LE) – Vmesnik V5.2 za podporo dostopovnemu omrežju (AN) – 6. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) – Proforma specifikacija za omrežno plast na strani krajevne centrale (LE)V interfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access Network (AN); Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network layer (LE side)33.040.30Komutacijski in signalizacijski sistemSwitching and signalling systemsICS:Ta slovenski standard je istoveten z:EN 300 347-6 Version 3.1.1SIST EN 300 347-6 V3.1.1:2005en01-januar-2005SIST EN 300 347-6 V3.1.1:2005SLOVENSKI
STANDARD



SIST EN 300 347-6 V3.1.1:2005



ETSIEN300347-6V3.1.1(2001-03)EuropeanStandard(Telecommunicationsseries)VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part6:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthenetworklayer(LEside)SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)2ReferenceREN/SPAN-09102-6KeywordsAN,ATS,LE,PIXIT,testing,Vinterface,V5interfaceETSI650RoutedesLuciolesF-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.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.74Abstracttestmethod.84.1ATM.84.2NWKlayerprotocoltesting.84.3Datalinkaddresses.94.4ExecutionofTCs.94.4.1Handlingoferrorindication.94.4.2TCexecutionsequence.95Untestabletestpurposes.105.1Controlprotocol.105.2PSTNprotocol.105.3Linkcontrolprotocol.115.4BCCProtocol.115.5Protectionprotocol.126Abstracttestsuiteconventions.126.1Namingconventions.126.1.1Declarationpart.126.1.2Constraintpart.136.1.3Dynamicpart.136.1.3.1Testcases.136.1.3.2Teststeps.146.1.3.3Generalaspects.146.1.4ATSabbreviations.146.2Implementationconventions.156.2.1Declarationpart.156.2.2Constraintpart.156.2.3Dynamicpart.156.2.4Documentation.16AnnexA(normative):AbstracttestsuiteforNWKtesting.17A.1TheTTCNGraphicalform(TTCN.GR).17A.2TheTTCNMachineProcessableform(TTCN.MP).17AnnexB(normative):PartialPIXITproforma.18B.1Introduction.18B.2PIXITproforma.18B.2.1Identificationsummary.18B.2.2Abstracttestsuitesummary.18B.2.3Testlaboratory.18B.2.4Client.19B.2.5SUT.19B.2.6Protocollayerinformation.20B.2.6.1Protocolidentification.20B.2.6.2IUTinformation.20SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)4History.27SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)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).Thepresentdocumentispart6ofamulti-partdeliverablecoveringtheVinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN),asdescribedbelow:Part1:"V5.2interfacespecification";Part2:"ProtocolImplementationConformanceStatement(PICS)proformaspecification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforthenetworklayer(ANside)";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthenetworklayer(ANside)";Part5:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforthenetworklayer(LEside)";Part6:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthenetworklayer(LEside)";Part7:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforthedatalinklayer";Part8:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthedatalinklayer";Part9:"Testspecificationforthephysicallayer".NationaltranspositiondatesDateofadoptionofthisEN:23March2001DateoflatestannouncementofthisEN(doa):30June2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31December2001DateofwithdrawalofanyconflictingNationalStandard(dow):31December2001SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)61ScopeThepresentdocumentcontainstheAbstractTestSuite(ATS)aswellastheAbstractTestMethod(ATM)andthepartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformafortheNetworklayer(NWK)oftheV5.2interfaceandpartsofthesystemmanagementoftheLocalExchange(LE)sideofaV5.2interface.TheobjectiveofthepresentdocumentistoprovideanATScontainingconformancetestswhichgiveahighprobabilityofinter-operabilityofanAccessNetwork(AN)andaLEfromdifferentmanufacturersovertheV5.2interface.ISO/IEC9646-1[7]andISO/IEC9646-2[8]areusedasthebasisforthetestmethodology.TheATSisdefinedusingtheTreeandTabularCombinedNotation(TTCN)accordingtoISO/IEC9646-3[9].TheATSinannexAdescribesasetofTestCases(TCs)whicharebasedontheTestPurposes(TPs)specifiedinETS300347-5[6](whichisanextensionofETS300324-5[2]).TheTCsprovidetheimplementationoftheTPsandcanbeconvertedintoanexecutabletestsuitebyusingavailableTTCNtranslatorsandthecorrespondingtools.AnnexBprovidesthepartialPIXITproforma.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIEN300324-1(V1.2.3):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part1:V5.1interfacespecification".[2]ETSIETS300324-5(1999):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part5:TestSuiteStructureandTestPurposes(TSS&TP)specificationforthenetworklayer(LEside)".[3]ETSIETS300324-6(1999):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part6:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthenetworklayer(LEside)".[4]ETSIEN300347-1(V2.2.2):"VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part1:V5.2interfacespecification".[5]ETSIEN300347-2(V2.1.3):"VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".[6]ETSIETS300347-5(1999):"VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part5:TestSuiteStructureandTestPurposes(TSS&TP)specificationforthenetworklayer(LEside)".[7]ISO/IEC9646-1:"InformationTechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part1:Generalconcepts".[8]ISO/IEC9646-2:"InformationTechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part2:Abstracttestsuitespecification".SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)7[9]ISO/IEC9646-3:"InformationTechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part3:TheTreeandTabularCombinedNotation(TTCN)".[10]ISO/IEC9646-5:"InformationTechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part5:Requirementsontestlaboratoriesandclientsfortheconformanceassessmentprocess".[11]ETSIETS300406:"MethodsforTestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;Standardizationmethodology".[12]ETSIETR141:"MethodsforTestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;TheTreeandTabularCombinedNotation(TTCN)styleguide".[13]ETSIEN300324-2(V1.2.3):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,alltermsanddefinitionsgiveninETS300324-6[3]apply.3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ANAccessNetworkASPAbstractServicePrimitiveATMAbstractTestMethodATSAbstractTestSuiteBCCBearerChannelConnectionBIInvalidBehaviourBOInopportuneBehaviourBVValidBehaviourCACApabilitytestCTRLControlDSAPDatalinkSAPFEFunctionElementFSMFiniteStateMachineIEInformationElementISDNIntegratedServicesDigitalNetworkISDN-BAISDN-BasicAccessITbasicInterconnectionTestIUTImplementationUnderTestL3addrLayer3addressLCLineCircuitLT1LowerTester1MPHManagementPhysicallayerNWKNetworkLayerPCOPointofControlandObservationPDUProtocolDataUnitPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtraInformationforTestingREQRequestSAPServiceAccessPointSUTSystemUnderTestTPTestPurposesTSSTestSuiteStructureSIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)8TTCNTreeandTabularCombinedNotationULUpperLayerUTUpperTesterV5DLaddrV5DataLinkaddress4AbstracttestmethodThisclausedescribestheAbstractTestMethod(ATM)andthePointofControlandObservation(PCO)usedtotesttheNWKoftheV5.2protocolfortheLEcomponents.4.1ATMPrincipally,theremotetestmethodisusedforV5.2LENWKconformancetesting.CertainV5.2LENWKTPsneedalsopartoftheserviceandnationalfunctions.Therefore,theembeddedvariantoftheremotetestmethodisapplied.ThenationaldependentinformationisdefinedinthePIXIT.4.2NWKlayerprotocoltestingTheV5.2implementationsdonotofferadirectaccesstotheupperserviceboundary.Theremotetestmethodwaschosenbecauseanyco-ordinationprocedurescanonlybeexpressedinaninformalway.SUTV5NWKPDUsServiceProviderDLL&PHLlayersLT1PCO/DSAPDLconnectionendpointsV5TestSystemIUTV5NWKDL-DATAUTBCC,Control,Linkcontrol,PSTNandProtectionprotocolFigure1:RemotetestmethodappliedtotheV5.2NWKlayertestingLT1:ALowerTester(LT1)islocatedinaremoteV5.2testsystem.ItcontrolsandobservesthebehavioursoftheIUT.DSAP:AuniqueDatalinkServiceAccessPoint(DSAP)isdefinedattheV5.2interfaceandcommonlyusedforexchangingservicedataofthedifferentnetworklayerprotocolfunctionalentities:PSTN,Controlprotocols.PCO:ThePCOsforNWKtestingarelocatedontheDSAP,PSAP,PSTN_ACCESSandPCM_ACCESSinterfaces.AlltesteventsattheDSAParespecifiedintermsofdatalinklayerAbstractServicePrimitives(ASPs)andnetworklayerPDUs.AlltesteventsatthePSAParespecifiedintermsofphysicallayerASPs.AlltesteventsatPSTN_ACCESSandPCM_ACCESSaredefinedasASPs.SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)9UT:NoexplicitUpperTester(UT)existsinthetestsystem.However,theSUTneedstocarryoutsomeULfunctionstoachievesomeeffectsoftestco-ordinationprocedures.DesigningATS,thecapabilityofthesystemmanagementfunctions,suchascontrolsoftheIUT,itsinteractionswiththeQinterfacemaybetakenintoaccount.ThecontrolsoftheIUTwillbeimpliedorinformallyexpressedintheATS,butnoassumptionshallbemaderegardingtheirfeasibilityorrealization.ExamplesofsuchcontrolscouldbetoprovokerestartingIUTorblocking/unblockingproceduresthroughQinterface.4.3DatalinkaddressesWithintheDSAP,differentV5DLaddrareusedtoidentifyeachcorrespondingdatalinkconnection.Eachnetworklayerprotocolfunctionalentitycanhaveonlyonedatalinkconnection,e.g.allPSTNsignallinginformationshareonedatalinkconnection.Table1showstheallocatedV5DLaddrusedbytheprotocolfunctionentities.Table1:V5DLaddrProtocolPSTNControlBCCProtectionLinkControlV5DLaddr817681778178817981804.4ExecutionofTCs4.4.1HandlingoferrorindicationDuringtheexecutionoftheNWKATSmanyerrorindicationswillbesenttothesystemmanagementduetotheinvalidandtheinopportuneTCs.ItisuptotheIUTsuppliertotakethenecessaryprecautionstoavoidanyimpactonthetestresult.4.4.2TCexecutionsequenceThefollowingtestsequenceshallbeapplied:TheTCcontainingthestart-upprocedureshallalwaysbethefirstTCexecuted.AlsoinanycasewheretheIUThastoberestartedthisTCshallbefirstexecuted.Protocolgroups:CTRLLINKPROTECTIONBCCPSTN.Testgroups:ITCATIBVBOBI.Interactionsbetweenthedifferenttestgroupsarenotconsidered.ItisuptotheIUTsuppliertotakethenecessaryprecautionstoavoidanyimpactonthetestresult.SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)105UntestabletestpurposesThisclausecontainsalistofTPswhicharenotcoveredbyintheATSduetothechosenATMorotherrestrictions.5.1ControlprotocolTable2listsTPswhicharenotcoveredbytheATSduetounknownreactionoftheIUTaftertestingtheTPsorduetothefacttheyhavethesamepurposeofTCalreadyimplemented.Table2:UntestableTPsTestPurposeIDTP1311S1_01TP1313S0_01TP1313SM_06TP1313SM_07TP1313SM_08TP1313SM_09TP1321S1_01TP1324S1001TP1324SM_05TP1324SM_11TP1325S1001TP1325S2013TP1325SM_11TP1325SM_24TP1326S1001TP1326SM_06TP1326SM_115.2PSTNprotocolThetestpurposeslistedintable3arenotimplementedintheATSduetounknownreactionoftheIUTaftertestingtheTPsorduetothefacttheyhavethesamepurposeofTCalreadyimplemented.Table3:UntestableTPsTestPurposeIDTP23__S1_04TP23__S1_06TP23__S2_08TP23__S2_09TP23__S4_07TP23__S5_10TP23__S6_01TP26__S4_01SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)115.3LinkcontrolprotocolTable4listsTPswhicharenotcoveredbytheATSduetoexistingoptionalprocedureswhichmayormaynotbeappliedbytheIUT.Table4:UntestableTPsTestPurposeIDTP31__SM_01TP33_1S1_01TP33_1SM_03TP33_7S1002TP33_7S1103TP33_7S1112TP33_7S1113TP33_7S2001TP33_7S2105TP33_7S2134TP33_7S2135TP33_7S2204TP33_7S2228TP33_7S2229TP33_7S2244TP33_7SM_11TP33_7SM_18TP33_7SM_405.4BCCProtocolTable5listsTPswhicharenotcoveredbytheATSbecauseitisnotpossibletofixtheIUTre-provisioningFiniteStateMachine(FSM)instateLE1.Table5:UntestableTPsTestPurposeIDTP41__SM_01TP42__SM_02TP42__SM_03TP42__SM_04TP42__SM_05TP43__SM_23TP43__SM_24TP43__SM_25SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)125.5ProtectionprotocolTable6listsTPswhicharenotcoveredbytheATSbecauseitisnotpossibletoprovokethegenerationofthenecessaryMPHsfromsystemmanagement.Table6:UntestableTPsTestPurposeIDTP51__SM_01TP53__S1_13TP53__SM_04TP53__SM_05TP53__SM_15TP56__S0_02TP56__S1_04TP56__S1_06TP56__S1_076AbstracttestsuiteconventionsTheATSconventionsareintendedtogiveabetterunderstandingoftheATSbuttheydescribealsotheconventionsmadeforthedevelopmentoftheATS,thusforanylatermaintenancepurposesorfurtherdevelopmentoftheATStheconventionsdescribedinthisclauseshallbeconsidered.TheATSconventionscontaintwoclauses,thenamingconventionsandtheimplementationconventions.ThenamingconventionsdescribethestructureofthenamingofallATSelements.TheimplementationconventionsdescribethefunctionalstructureoftheATS.NOTE:TodefinetheATS,theguidelinesgiveninETS300406[11]andETR141[12]wereconsidered.6.1Namingconventions6.1.1DeclarationpartTheIDnamesofthefollowingdefinitionsarewritteninlowercase:-structuredtypedefinitions;-ASPtypedefinitions;-PDUtypedefinitions.TheIDnamesofthefollowingdefinitionsarewritteninuppercase:-TestSuiteParameterDeclarations;-TestCaseSelectionExpressionDefinitions;-TestSuiteConstantDeclarations;-TestCaseVariableDeclarations.IDnamesofPDUsandstructuredtypescommencewithaprotocolidentifiertodefinewhichprotocoltheyarebelongingto.Thefollowingidentifiersareused:-controlprotocol:ctrle.g.crtl_common_control_ack;-PSTNsignalling:pstne.g.pstn_signal_ack.SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)13IDnamesofPDUsandstructuredtypeswhichareusedforinvalidtestscommencewith"bi".EXAMPLE1:bi_com_ctrl_two_mety.CompletenamesasdefinedinthespecificationsareusedforIDnamesofdeclarations.EXAMPLE2:ctrl_control_function_element.TestsuiteparameterIDnamescommencewithTSP:-PICSareidentifiedbyaddingtheletter"C":TSPC_.(e.g.:TSPC_PSTN);-PIXITareidentifiedbyaddingtheletter"X":TSPX_.(e.g.:TSPX_PORT_ADDRESS).Ifatestsuiteparameterisrepresentingasystemparameterorvalue,onlytheparameternameisused.EXAMPLE3:MR(receivesequencenumberinsignalmessage).TestsuiteoperationscommencewithTSO.EXAMPLE4:TSO_INTEGER_TO_OCTETSTRING.TestsuiteconstantIDnamescommencewithTSC.EXAMPLE5:TSC_CFE_FE201_2_UNBL.Iftheconstantisrepresentingasystemparameterorvalue,onlytheparameternameisused.EXAMPLE6:N01.IDnamesofTimerscommencewithT.Thesamenamesasinthespecificationareused.EXAMPLE7:T01.6.1.2ConstraintpartConstraintnamescommencewithuppercase.TheremainingpartoftheIDnameiswritteninlowercase.IDnamesofelementsconcerningthesamesubjecthaveequivalentnamesinthedeclarationandtheconstraintpart:Declarationpart:ctrl_control_function_element;Constraintpart:Ctrl_control_function_element.Thenameofthemodifiedconstraintdescribestheparticularityofthemodifiedconstraint.EXAMPLE:Ctrl_cc_mand_only(commoncontrolmessagewhichcontainsonlythemandatoryIEs).Ifformalparameterlistsareused,thevariablenamesarewritteninlowercase.Thevariablenameisthesameasthenameoftheelementitisrepresenting.6.1.3Dynamicpart6.1.3.1TestcasesTheidentifieroftheTCsisconstructedinthesamewayasfortheTPsdescribedinETS300347-5[6],clause5.1.1,withtheexceptionthat"TP"isreplacedby"TC".TPidentifier:TP1324S1106;TCidentifier:TC1324S1106.SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)146.1.3.2TeststepsInTCs,teststepsaswellaslocaltreesareused.Toallowaneasydistinction,thefollowingnamingisapplied:localtree:LTS_[local_tree_name];teststep:STEP_[test-step_name].6.1.3.3GeneralaspectsAllverdictassignmentsarelabelled.Toallowanexactidentificationinwhichtabletheverdictwasassigned,thefollowingnameconventionisapplied:BtestBodyCSstatusverificationteststeps(CheckStatus)DDefaultEErrorhandlingteststepsPOPOstamblePRPReambleStestStepCombinationsoflabelsarealsopossible.EXAMPLE:DPR-->labelwhichisusedinadefaultforpreambles.6.1.4ATSabbreviationsTheseabbreviationsareusedtoshortenidentifiernames:addraddressactactivateaccaccessackacknowledgementallocallocationcaucausecccommoncontrolcfecontrolfunctionelementcficontrolfunctionidentifierchanchannelcomcommoncplcompletectrlcontroldldatalinkenqenquiryestestablishfuncfunctionindindicationinterfinterfacemandmandatorymetymessagetypemodmodifiedparparameterpcportcontrolpdprotocoldiscriminatorperformperformanceprogprogressprprotectionprotocolprotprotocolprovprovisionedreprore-provisioningreqrequestrestrestartSIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)15rspresponseupuserportvarvariantverifyverifyingvidvariant&interfaceID6.2Implementationconventions6.2.1DeclarationpartThecommentlineofsingleelementTTCNtables(e.g.testsuiteconstants)isusedtogiveareferencewheretheformatandcontentoftheelementisdescribedintherelevantprotocolspecifications.Anyparticularityoftheelementformatorcontentisdescribedinthecommentline.Thecommentlineintheheaderofmulti-elementTTCNtables(e.g.ASPs)isusedtoreferencetotheprotocolspecification.Thedetailedcommentsareusedtodescribeanyparticularityofthetable.IntheASPandPDUdeclarations,thecommentscolumnisusedtoidentifyifanelementismandatoryoroptional.m:mandatory;o:optional.IntheASPandPDUdeclarationsthecommentscolumnisfurtherusedtogiveinformationabouttheelementvalue,inparticulariftheelementcontainsafixedsparevalue.Intableswherestructuretypesareusedtheinformationelementandtherelevantstructuredtypehavealwaysthesamename,thatallowstohavethesamestructureasintheprotocolstandardsisusedtodocumenttherelationbetweeninformationelementsinatableandtheirspecificdescriptioninanotherclauseoftheprotocolstandard.6.2.2ConstraintpartTheASPsandPDUsaredefinedinawaythatallrelevantelementareparameterized.Thatimprovesthetransparencyoftheconstraintsinthedynamicpart,asallvalueswhicharerelevantforthetestarealwayspresent.Generallythebaseconstraintcontainsallpossibleparametersandtherelevantformalparameterlistwhichgoeswiththebaseconstraint.IncasewhereaspecificmessageIEisnotusedatallintheATS,thebaseconstraintwillnotcontainsuchanIE.ThebaseconstraintsofthePSTNprotocolcontainallmandatoryIEs.TheoptionalIEsaredefinedinoneelementoftypeOCTETSTRING.TheactualvalueandformatoftheoptionalIEhastobedefinedinthePIXITsaccordingtothePSTNspecificationswhichisimplementedintheIUT.Modifiedconstraintshavethesameparameterlistasthebaseconstraint.Notusedelementsoftheparameterlistaresettoadefaultvalue"ANY"inthedynamicpart.Thenumberofbaseconstraintsisreducedtoaminimum.Thecommentlineofaconstraintcontainsalwaysthereferencetotheusedspecifications.Thedetailedcommentssectorisusedtodescribeanyparticularityofthetable.6.2.3DynamicpartSomeTCsneedaparticularinitializationoftheIUTenvironmentconditionstoruntheactualtest,e.g.fortestingre-provisioningprocedures.Suchmessagesequencecanbequitecomplicatedandlong.IncaseswhereaLocalTestStep(LTS)facilitatestheTCstructure,thepreambleandtheconditionsettingaredescribedinaLTScalledLTS_pre_step.AllLTS_pre_stepsaredescribedinthedetailedcommentpartoftheTTCNtable.SomeTCsneedaftertheactualtestaparticularre-initializationoftheIUT,e.g.afterre-provisioning.Suchmessagesequencecanbequitecomplicatedandlong.IncaseswhereaLocalTestStep(LTS)facilitatestheTCstructure,thepostambleandthere-initializationaredescribedinaLTScalledLTS_post_step.AllLTS_post_stepsaredescribedinthedetailedcommentpartoftheTTCNtable.SIST EN 300 347-6 V3.1.1:2005



ETSIETSIEN300347-6V3.1.1(2001-03)16AlleventswhicharedefinedasaconformancerequirementsbytheTP,causeapreliminaryverdictPASSiftherequirementismet.Allinvalideventsarehandledinthedefaulttree.FAILverdictsareonlyassignedinthedefaulttree.ThedefaulttreecontainstheerrorhandlingprocedurefortheparticularTC.Thepreamble,thetestbodyandthepostamblehavedifferentdefaults,whatallowsaspecificverdicthandling,e.g.onlyINCONCverdictsareassignedinthepreamble.Teststepsdonotcontainadefault.Thatallowstoapplythemwithnorestrictionsregardingtheerrorhandling.Allverdictassignmentsarelabelled.AccordingtoISO/IEC9646-3[9],clauseE.2,labelsshouldbewrittentotheconformancelog.Thisallowstoidentifywerethetestfailed.Toallowanexactidentificationinwhichtabletheverdictwasassigned,thenamingconventionasdescribedinclause6.1.3.3isapplied.ThelabelsofthesametypearenumberedsequentiallyiftheyareinthesameTC,teststepordefault.TPswhichonlyreferencetoanotherTP,e.g.BVTPswhichwerealreadydefinedasCATPs,areonlyimplementedones,thusthenumberingoftheTCsisnotalwayscontinues.TPswhicharelistedintheuntestableTPlistinclause5,orwhichreferencetoanotherTP,e.g.BVTPswhichwerealreadydefinedasCATPs,arenotconsideredintheATS,thustheseTCidentifiersaremissingintheATSandthenumberingoftheTCsisnotalwayscontinues.NWKimplementation:1)thePDUsusedinimplicitsendhavethesamenameast
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