SIST EN 300 324-8 V2.1.1:2005
(Main)V interfaces at the digital Local Exchange (LE); V5.1 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
General Information
- Abstract
Corrections of errors in layer 2 ATS discovered as side-effect of work in STF on layer 3.
- Status
- Published
- Publication Date
- 31-Dec-2004
- 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
- Mandate
- BC-T-340
Overview
SIST EN 300 324-8 V2.1.1:2005 is a Slovenian standard that aligns with EN 300 324-8 (European Norm). It specifies the Abstract Test Suite (ATS) and the partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma for the V5.1 interface data link layer in digital Local Exchanges (LE) supporting Access Networks (AN). This standard primarily provides corrections and enhancements for the layer 2 ATS, informed by ongoing work on layer 3 protocol testing.
The document is designed to ensure high interoperability and reliability of telecommunications equipment implementing the V5.1 interface, particularly for suppliers and manufacturers who require conformance testing at the data link layer.
Key Topics
- V5.1 Interface: Defines the protocol between Digital Local Exchanges (LE) and Access Networks (AN), supporting services like the Public Switched Telephone Network (PSTN) and Integrated Services Digital Network (ISDN).
- Abstract Test Suite (ATS): Contains conformance tests designed according to ISO/IEC 9646 methodology using Tree and Tabular Combined Notation (TTCN). The ATS provides a structured approach to verifying protocol implementation accuracy.
- Data Link Layer (DLL) Testing: Focuses on verifying the correct operation of the LAPV5 sublayers, message sequencing, error handling, and test execution strategies between LE and AN devices.
- PIXIT Proforma: Offers a standardized template to document implementation-specific information required for effective protocol testing. PIXIT complements PICS (Protocol Implementation Conformance Statement) by detailing system-specific parameters, timer values, and procedural behavior.
- Testing Methodology: Utilizes the remote test method approach for conformance scenarios where direct access to upper service boundaries is not feasible.
Applications
The standard delivers practical value to various stakeholders in the telecommunications industry, including:
- Manufacturers and Suppliers: Ensures that their V5.1 interface implementations are interoperable and conformant, reducing integration issues and enabling deployment across heterogeneous networks.
- Test Laboratories: Provides a reference test suite and documentation model to conduct formal conformance assessments on devices implementing the V5.1 data link layer.
- Network Operators: Assures high reliability and consistent behavior of network equipment by leveraging standard-based testing and conformance reporting.
- Protocol Developers: Offers concrete guidelines for developing, maintaining, and testing protocol implementations with well-defined naming conventions, parameter handling, and verdict assignments for test scenarios.
Related Standards
This document is part of a series covering all protocol layers of the V5.1 interface. Related standards include:
- EN 300 324-1: V5.1 Interface Specification
- EN 300 324-2: PICS Proforma for Protocol Implementation Conformance Statement
- EN 300 324-7: Test Suite Structure and Test Purposes (TSS&TP) for the data link layer
- EN 300 324-9: Test specifications for the physical layer
- ISO/IEC 9646 Series: Conformance testing methodology and framework (mandatory for ATS and PIXIT creation)
- ISO 7498: Basic Reference Model for Open Systems Interconnection (OSI)
Keywords: V5.1 interface, Abstract Test Suite (ATS), Data Link Layer (DLL), Protocol Implementation eXtra Information for Testing (PIXIT), Access Network (AN), Local Exchange (LE), protocol conformance, telecommunications testing, interoperability, ISO/IEC 9646, TTCN.
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Frequently Asked Questions
SIST EN 300 324-8 V2.1.1:2005 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "V interfaces at the digital Local Exchange (LE); V5.1 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". This standard covers: Corrections of errors in layer 2 ATS discovered as side-effect of work in STF on layer 3.
Corrections of errors in layer 2 ATS discovered as side-effect of work in STF on layer 3.
SIST EN 300 324-8 V2.1.1:2005 is classified under the following ICS (International Classification for Standards) categories: 33.040.30 - Switching and signalling systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 324-8 V2.1.1:2005 is associated with the following European legislation: Standardization Mandates: BC-T-340. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 300 324-8 V2.1.1:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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 V5.1 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); V5.1 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 300 324-8 Version 2.1.1SIST EN 300 324-8 V2.1.1:2005en01-januar-2005SIST EN 300 324-8 V2.1.1:2005SLOVENSKI
STANDARD
ETSIEN300324-8V2.1.1(2000-05)EuropeanStandard(Telecommunicationsseries)VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part8:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthedatalinklayerSIST EN 300 324-8 V2.1.1:2005
ETSIETSIEN300324-8V2.1.1(2000-05)2ReferenceREN/SPAN-09107-8-1KeywordsAN,ATS,ISDN,layer2,LE,PIXIT,PSTN,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.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 324-8 V2.1.1:2005
ETSIETSIEN300324-8V2.1.1(2000-05)3ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.74Abstracttestmethod.84.1ATM.84.2DLLprotocoltesting.84.3Executionoftestcases.94.3.1AN-LEtesting.94.3.2Handlingoferrorindications.94.3.3Testcaseexecutionsequence.95Untestabletestpurposes.96Abstracttestsuiteconventions.106.1Namingconventions.106.1.1Declarationpart.106.1.2Constraintpart.116.1.3Dynamicpart.116.1.3.1Testcases.116.1.3.2Teststeps.116.1.3.3Generalaspects.116.1.4ATSabbreviations.126.2Implementationconventions.126.2.1Declarationpart.126.2.2Constraintpart.126.2.3Dynamicpart.136.2.4Documentation.14AnnexA(normative):AbstractTestSuite(ATS)forDLLtesting.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.18History.20SIST EN 300 324-8 V2.1.1:2005
ETSIETSIEN300324-8V2.1.1(2000-05)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeServicesandProtocolsforAdvancedNetworks(SPAN).Thepresentdocumentispart8ofamulti-partstandardcoveringtheV5.1interfaceasdescribedbelow:Part1:"V5.1interfacespecification";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(LEside)";Part7:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforthedatalinklayer";Part8:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthedatalinklayer";Part9:"Testspecificationsforthephysicallayer".NationaltranspositiondatesDateofadoptionofthisEN:28April2000DateoflatestannouncementofthisEN(doa):31July2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31January2001DateofwithdrawalofanyconflictingNationalStandard(dow):31January2001SIST EN 300 324-8 V2.1.1:2005
ETSIETSIEN300324-8V2.1.1(2000-05)51ScopeThiseighthpartofEN300324containstheAbstractTestSuite(ATS)aswellastheAbstractTestMethod(ATM)andthepartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformafortheDataLinkLayer(DLL)oftheV5.1interface.TheobjectiveofthepresentdocumentistoprovideanATScontainingconformancetestswhichgiveahighprobabilityofinter-operabilityofanAccessNetwork(AN)andaLocalExchange(LE)fromdifferentmanufacturersovertheV5.1interface.ISO/IEC9646-1[5]andISO/IEC9646-2[6]areusedasthebasisforthetestmethodology.TheATSisdefinedusingtheTreeandTabularCombinedNotation(TTCN)accordingtoISO/IEC9646-3[7].TheATSinannexAdescribesasetofTestCases(TCs)whicharebasedontheTestPurposes(TPs)specifiedinETS300324-7[3].TheTCsprovidetheimplementationoftheTPsandcanbeconvertedintoanexecutabletestsuitebyusingavailableTTCNtranslatorsandthecorrespondingtools.AnnexBprovidesthepartialPIXITproforma.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIETS300324-1(1994)includingamendmentA1:"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part1:V5.1interfacespecification".[2]ETSIETS300324-2(1994):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part2:ProtocolImplementationConformanceStatement(PICS)proforma".[3]ETSIETS300324-7(1999):"VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part7:TestSuiteStructureandTestPurposes(TSS&TP)specificationforthedatalinklayer".[4]ISO7498:"Informationprocessingsystems;OpenSystemsInterconnection;BasicReferenceModel".[5]ISO/IEC9646-1:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part1:Generalconcepts".[6]ISO/IEC9646-2:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part2:Abstracttestsuitespecification".[7]ISO/IEC9646-3:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part3:TheTreeandTabularCombinedNotation(TTCN)".[8]ISO/IEC9646-5:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part5:Requirementsontestlaboratoriesandclientsfortheconformanceassessmentprocess".SIST EN 300 324-8 V2.1.1:2005
ETSIETSIEN300324-8V2.1.1(2000-05)6[9]ETSIETS300406:"MethodsforTestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;Standardizationmethodology".[10]ETSIETR141:"MethodsforTestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;TheTreeandTabularCombinedNotation(TTCN)styleguide".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:abstracttestcase:refertoISO/IEC9646-1[5]NOTE:Inthepresentdocument,thecommonlyusedtermTCisappliedinthesamewayasATC.abstracttestsuite:refertoISO/IEC9646-1[5]datalinklayer:refertoISO7498[4]embeddedvariant:refertoISO/IEC9646-2[6]implementationundertest:refertoISO/IEC9646-1[5]lowertester:refertoISO/IEC9646-1[5]networklayer:refertoISO7498[4]notionalUT:upperlayersoftheSUTareusedtorealizethefunctionsoftheuppertester,withoutanyadditionalmechanismbeinginstalledphysicallayer:refertoISO7498[4]PICSproforma:refertoISO/IEC9646-1[5]PIXITproforma:refertoISO/IEC9646-1[5]pointofcontrolandobservation:refertoISO/IEC9646-1[5]ProtocolImplementationConformanceStatement(PICS):refertoISO/IEC9646-1[5]ProtocolImplementationeXtraInformationforTesting(PIXIT):refertoISO/IEC9646-1[5]remotetestmethod:refertoISO/IEC9646-2[6]systemundertest:refertoISO/IEC9646-1[5]testpurpose:refertoISO/IEC9646-1[5]SIST EN 300 324-8 V2.1.1:2005
ETSIETSIEN300324-8V2.1.1(2000-05)73.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ANAccessNetworkASPAbstractServicePrimitiveATMAbstractTestMethodATSAbstractTestSuiteBIInvalidBehaviourBOInopportuneBehaviourBVValidBehaviourCACapabilitytestDLLDataLinkLayerIDIdentifierIEInformationElementIEIInformationElementIdentifierISDNIntegratedServicesDigitalNetworkITbasicInterconnectionTestIUTImplementationUnderTestLAPV5LinkAccessProtocolforV5interfaceLAPV5-DLLAPV5DataLinksublayerLAPV5-EFLAPV5EnvelopeFunctionsublayerLELocalExchangeLT1LowerTester1NWKNetwork(Layer)PCOPointofControlandObservationPDUProtocolDataUnitPHLPhysicalLayerPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtraInformationforTestingPSAPPHLServiceAccessPointPSTNPublicSwitchedTelephoneNetworkRXReceiverconditionSAPServiceAccessPointSAPIServiceAccessPointIdentifierSUTSystemUnderTestTCTestCaseTEITerminalEndpointIdentifierTITimerTPTestPurposeTSSTestSuiteStructureTTCNTreeandTabularCombinedNotationTXTransmitterconditionUTUpperTesterV5DLaddrV5DataLinkaddressV5DLLV5DataLinkLayerSIST EN 300 324-8 V2.1.1:2005
ETSIETSIEN300324-8V2.1.1(2000-05)84AbstracttestmethodThisclausedescribestheAbstractTestMethod(ATM)andthePointofControlandObservation(PCO)usedtotesttheDLLoftheV5.1protocol.4.1ATMPrincipally,theremotetestmethodisusedforV5DLLconformancetesting.CertainDLLTPsneedalsopartoftheNWKfunctions(e.g.Iframetransmission).Therefore,theembeddedvariantoftheremotetestmethodisapplied.4.2DLLprotocoltestingTheV5.1implementationsdonotofferadirectaccesstotheupperserviceboundary.Theremotetestmethodwaschosenbecauseanyco-ordinationprocedurescanonlybeexpressedinaninformalway.LT1:ALowerTester(LT1)islocatedinaremoteV5.1testsystem.ItcontrolsandobservesthebehavioursoftheIUT.PCO:ThePCOforDLLtestingislocatedonthePSAP.AlltesteventsatthePCOarespecifiedintermsofPH-DataASPsandDLLPDUs.AsinglePCOisdefinedforDLLtestinginordertoexchangemessagesoftheLAPV5-EFsublayeraswellasoftheLAPV5-DLsublayer.NotionalUT:ThenotionalUTincludestheNWKandsystemmanagementfunctions.V5-DLL:V5-DLLincludesLAPV5-EF,mappingfunctionandLAPV5-DL.ANtest:TotesttheLAPV5-EFprotocol,anISDNterminalshallbeconnectedtotherelevantuserport.SUTV5TestSystemV5-DLLPCO/PSAPV5-DLLPDULT1PhysicalLayerIUTServiceProvidernotionalUTPH-DataFigure1:RemotetestmethodappliedtotheV5.1DLLtestingSIST EN 300 324-8 V2.1.1:2005
ETSIETSIEN300324-8V2.1.1(2000-05)94.3Executionoftestcases4.3.1AN-LEtestingRegardingtheDLLprotocolofV5.1,theV5.1interfaceisalmostsymmetrical,exceptthattheFrameRelayfunctionisonlyimplementedintheAN.TherearetwoprotocolsubjectswhichhavetobeadaptedforLEtesting,themessagesequenceofagenericcalltotheISDNentityandthehandlingoftheCRbit.ThegenericcalltotheISDNentityisstoppedafterhavingreceivedfromtheIUTanUAresponseframeasaresponsetoapreviouslysentSABMEcommandframe.UntiltheISDNlinkinitialization,theV5.1protocolissymmetricalasonlyapoint-to-pointconnectionoverasingledatalinkisestablished(fixedTEI).TheproblemoftheCRbithandlingissolvedintheATS.TheCRbitisdefinedasatestsuiteparameterwhichallowstoinverttheCRbitforLEtesting.Table1documentsthisapproach.Table1:AN-LEparametersANLETSPX_ANTRUEFALSECR_0'0'B'1'BCR_1'1'B'0'B4.3.2HandlingoferrorindicationsDuringtheexecutionoftheDLLATS,manyMDL-ERROR-INDwillbesenttothesystemmanagementduetotheinvalidandinopportunetestcases.ItisuptotheIUTsuppliertotakethenecessaryprecautionstoavoidanyimpactonthetestresult.SometestsuseNWKprocedurestotestDLLfunctions,itisnotalwayspossibletohandletheNWKproperly.TheeffectsofsuchfaultyNWKmessagesandproceduresareoutofthescopeofthepresentdocument.ItisuptotheIUTsuppliertotakethenec
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