ETSI EN 300 347-8 V2.1.1 (2000-06)

V interfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access Network (AN); Part 8: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the data link layer

REN/SPAN-09108-8-1

Vmesniki V pri digitalnih krajevnih centralah (LE) – Vmesnik V5.2 za podporo dostopovnemu omrežju (AN) – 8. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) – Proforma specifikacija za podatkovno povezovalno plast

General Information

• Status: Published
• Publication Date: 26-Jun-2000
• Technical Committee: SPAN 9 - Access Networks and Service Node Interfaces
• Current Stage: 12 - Completion
• Due Date: 12-May-2000
• Completion Date: 27-Jun-2000
• Ref Project: SIST EN 300 347-8 V2.1.1:2005 - V interfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access Network (AN); Part 8: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the data link layer

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) – 8. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) – Proforma specifikacija za podatkovno povezovalno plastV interfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access Network (AN); Part 8: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the data link layer33.040.30Komutacijski in signalizacijski sistemSwitching and signalling systemsICS:Ta slovenski standard je istoveten z:EN 300 347-8 Version 2.1.1SIST EN 300 347-8 V2.1.1:2005en01-januar-2005SIST EN 300 347-8 V2.1.1:2005SLOVENSKI
STANDARD



SIST EN 300 347-8 V2.1.1:2005



ETSIEN300347-8V2.1.1(2000-06)EuropeanStandard(Telecommunicationsseries)VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part8:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthedatalinklayerSIST EN 300 347-8 V2.1.1:2005



ETSIETSIEN300347-8V2.1.1(2000-06)2ReferenceREN/SPAN-09108-8-1KeywordsVinterface,V5interface,ISDN,LE,ATS,PIXIT,testing,layer2,ANETSI650RoutedesLuciolesF-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.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 347-8 V2.1.1:2005



ETSIETSIEN300347-8V2.1.1(2000-06)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.74Abstracttestmethod.84.1ATM.84.2DLLprotocoltesting.84.3Executionoftestcases.94.3.1AN-LEtesting.94.3.2Handlingoferrorindications.94.3.3LinkcontrolFSM-PhysicalLayerconnection.94.3.4Testcaseexecutionsequence.95Untestabletestpurposes.105.1ListofunimplementedTPs.106Abstracttestsuiteconventions.106.1Namingconventions.106.1.1Declarationpart.106.1.2Constraintpart.116.1.3Dynamicpart.116.1.3.1Testcases.116.1.3.2Teststeps.116.1.3.3Generalaspects.126.1.4ATSabbreviations.126.2Implementationconventions.126.2.1Declarationpart.126.2.2Constraintpart.136.2.3Dynamicpart.14AnnexA(normative):AbstracttestsuiteforDLLtesting.15A.1TheTTCNGraphicalform(TTCN.GR).15A.2TheTTCNMachineProcessableform(TTCN.MP).15AnnexB(normative):PartialPIXITproforma.16B.1Introduction.16B.2PIXITproforma.16B.2.1Identificationsummary.16B.2.2Abstracttestsuitesummary.16B.2.3Testlaboratory.16B.2.4Client.17B.2.5SUT.17B.2.6Protocollayerinformation.18B.2.6.1Protocolidentification.18B.2.6.2IUTinformation.18SIST EN 300 347-8 V2.1.1:2005



ETSIETSIEN300347-8V2.1.1(2000-06)4AnnexC(informative):MergingprocedureofV5.1ATSandV5.2ATSadditions.20History.21SIST EN 300 347-8 V2.1.1:2005



ETSIETSIEN300347-8V2.1.1(2000-06)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).Thepresentdocumentispart8ofamulti-partstandardcoveringtheV5.1interfaceasdescribedbelow:Part1:"V5.2interfacespecification";Part2:"ProtocolImplementationConformanceStatement(PICS)proforma";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";Part7:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforthedatalinklayer";Part8:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthedatalinklayer";Part9:"Testspecificationforthephysicallayer".NationaltranspositiondatesDateofadoptionofthisEN:5May2000DateoflatestannouncementofthisEN(doa):31August2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):28February2001DateofwithdrawalofanyconflictingNationalStandard(dow):28February2001SIST EN 300 347-8 V2.1.1:2005



ETSIETSIEN300347-8V2.1.1(2000-06)61ScopeThiseighthpartofEN300347containstheAbstractTestSuite(ATS)aswellastheAbstractTestMethod(ATM)andthepartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformafortheDataLinkLayer(DLL)oftheV5.2interface.TheobjectiveofthepresentdocumentistoprovideanATScontainingconformancetestswhichgiveahighprobabilityofinter-operabilityofanAccessNetwork(AN)andaLocalExchange(LE)fromdifferentmanufacturersovertheV5.2interface.ISO/IEC9646-1[8]andISO/IEC9646-2[9]areusedasthebasisforthetestmethodology.TheATSisdefinedusingtheTreeandTabularCombinedNotation(TTCN)accordingtoISO/IEC9646-3[10].TheATSinannexAdescribesasetofTestCases(TCs)whicharebasedontheTestPurposes(TPs)specifiedinETS300347-7[7](whichisanextensionofETS300324-7[3]).TheTCsprovidetheimplementationoftheTPsandcanbeconvertedintoanexecutabletestsuitebyusingavailableTTCNtranslatorsandthecorrespondingtools.AnnexBprovidesthepartialPIXITproforma.ThepresentdocumentneedstobeusedinconjunctionwithETS300324-8[4].TocreateacompleteV5.2ATS,theV5.1ATScontainedinETS300324-8[4]andtheV5.2ATSadditionscontainedinannexAofthepresentdocumentneedtobemerged.AnnexCgivesassistancewiththisprocedure.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIEN300324-1:"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part1:V5.1interfacespecification".[2]ETSIETS300324-5(1999):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part5:TestSuiteStructureandTestPurposes(TSS&TP)specificationforthenetworklayer(LEside)".[3]ETSIETS300324-7(1999):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part7:TestSuiteStructureandTestPurposes(TSS&TP)specificationforthedatalinklayer".[4]ETSIETS300324-8(1999):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part8:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthedatalinklayer".[5]ETSIETS300347-1(1994)includingamendmentA1:"VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part1:V5.2interfacespecification".[6]ETSIEN300347-2:"VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".SIST EN 300 347-8 V2.1.1:2005



ETSIETSIEN300347-8V2.1.1(2000-06)7[7]ETSIETS300347-7(1999):"VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part7:TestSuiteStructureandTestPurposes(TSS&TP)specificationforthedatalinklayer".[8]ISO/IEC9646-1:"InformationTechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part1:Generalconcepts".[9]ISO/IEC9646-2:"InformationTechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part2:Abstracttestsuitespecification".[10]ISO/IEC9646-3:"InformationTechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part3:TheTreeandTabularCombinedNotation(TTCN)".[11]ISO/IEC9646-5:"InformationTechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part5:Requirementsontestlaboratoriesandclientsfortheconformanceassessmentprocess".[12]ETSIETS300406:"MethodsforTestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;Standardizationmethodology".[13]ETSIETR141:"MethodsforTestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;TheTreeandTabularCombinedNotation(TTCN)styleguide".[14]Void.[15]ETSIETS300347-8:"VinterfacesatthedigitalLocalExchange(LE);V5.2interfaceforthesupportofAccessNetwork(AN);Part8:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthedatalinklayer".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thetermsanddefinitionsgiveninETS300324-8[4]apply.3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ANAccessNetworkASPAbstractServicePrimitiveATMAbstractTestMethodATSAbstractTestSuiteBIInvalidBehaviourBOInopportuneBehaviourBVValidBehaviourCACapabilitytestDLLDataLinkLayerFSMFiniteStateMachineIDInterfaceidentifierISDNIntegratedServicesDigitalNetworkITbasicInterconnectionTestIUTImplementationUnderTestLAPV5LinkAccessProtocolforV5interfaceLAPV5-DLLAPV5DataLinksublayerLAPV5-EFLAPV5EnvelopeFunctionsublayerLELocalExchangeLT1LowerTester1SIST EN 300 347-8 V2.1.1:2005



ETSIETSIEN300347-8V2.1.1(2000-06)8NWKNetworkLayerPCOPointofControlandObservationPDUProtocolDataUnitPHLPhysicalLayerPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtranInformationforTestingPSAPPHLServiceAccessPointPSTNPublicSwitchedTelephoneNetworkSAPServiceAccessPointSUTSystemUnderTestTCTestCaseTEITerminalEndpointIdentifierTITimerTPTestPurposeTTCNTreeandTabularCombinedNotationUTUpperTesterV5DLLV5DataLinkLayer4AbstracttestmethodThisclausedescribestheAbstractTestMethod(ATM)andthePointofControlandObservation(PCO)usedtotesttheDLLoftheV5.2protocol.4.1ATMPrincipally,theremotetestmethodisusedforV5DLLconformancetesting.CertainDLLTPsneedalsopartoftheNWKfunctions(e.g.Iframetransmission).Therefore,theembeddedvariantoftheremotetestmethodisapplied.4.2DLLprotocoltestingTheV5implementationsdonotofferadirectaccesstotheupperserviceboundary.Theremotetestmethodwaschosenbecauseanyco-ordinationprocedurescanonlybeexpressedinaninformalway.SUTV5TestSystemV5-DLLPCO/PSAPV5-DLLPDULT1PhysicalLayerIUTServiceProvidernotionalUTPH-DataFigure1:RemotetestmethodappliedtotheV5.1DLLtestingSIST EN 300 347-8 V2.1.1:2005



ETSIETSIEN300347-8V2.1.1(2000-06)9LT1:ALowerTester(LT1)islocatedinaremoteV5testsystem.ItcontrolsandobservesthebehavioursoftheIUT.PCO:ThePCOforDLLtestingislocatedonthePSAP.AlltesteventsatthePCOarespecifiedintermsofPH-DataASPsandDLLPDUs.AsinglePCOisdefinedforDLLtestinginordertoexchangemessagesoftheLAPV5-EFsublayeraswellasoftheLAPV5-DLsublayer.NotionalUT:ThenotionalUTincludestheNWKandSystemManagementfunctions.V5-DLL:V5-DLLincludesLAPV5-EF,mappingfunctionandLAPV5-DL.ANtest:TotesttheLAPV5-EFprotocol,anISDNterminalshallbeconnectedtotherelevantuserport.4.3Executionoftestcases4.3.1AN-LEtestingRegardingtheDLLprotocolofV5.2,theV5.2interfaceisalmostsymmetrical,exceptthattheFrameRelayfunctionisonlyimplementedintheAN.TherearetwoprotocolsubjectswhichhavetobeadaptedforLEtesting,themessagesequenceofagenericcalltotheISDNentityandthehandlingoftheCRbit.ThegenericcalltotheISDNentityisstoppedafterhavingreceivedfromtheIUTanUAresponseframeasaresponsetoapreviouslysentSABMEcommandframe.UntiltheISDNlinkinitializationtheV5.2protocolissymmetricalasonlyapoint-to-pointconnectionoverasingledatalinkisestablished(fixedTEI).TheproblemoftheCRbithandlingissolvedintheATS.TheCRbitisdefinedasatestsuiteparameterwhichallowstoinverttheCRbitforLEtesting.Table1documentsthisapproach.Table1:AN-LEparametersANLETSPX_ANTRUEFALSECR_0'0'B'1'BCR_1'1'B'0'B4.3.2HandlingoferrorindicationsDuringtheexecutionoftheDLLATSmanyMDL-ERROR-INDwillbesenttothesystemmanagementduetotheinvalidandinopportunetestcases.ItisuptotheIUTsuppliertotakethenecessaryprecautionstoavoidanyimpactonthetestresult.SometestsuseNWKprocedurestotestDLLfunctions,itisnotalwayspossibletohandletheNWKproperly.TheeffectsofsuchfaultyNWKmessagesandproceduresareoutofthescopeoftheDLLATS.ItisuptotheIUTsuppliertotakethenecessaryprecautionstoavoidanyimpactonthetestresult.4.3.3LinkcontrolFSM-PhysicalLayerconnectionDuringtheLinkidentificationprocedure(seeETS300347-1[5],subclause16.2.4.3.5)theLinkcontrolFSMneedstocommunicatewitthePhysicallayer.ThisfacthasadirectimpactontheexecutionoftheLinkidentificationprocedure.Asitisnotpossibletomakerequirementsontheinternalbehavio
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