SIST EN 300 347-6 V3.1.1:2005

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)

Update the test specifications to be in line with the 3rd edition of the base protocol standard.

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)

General Information

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.040.30 - Switching and signalling systems
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Ref Project: ETSI EN 300 347-6 V3.1.1 (2001-03) - 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)

Standards Content (Sample)

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.:[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 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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