SIST EN 301 067-6 V2.1.1:2003
(Main)Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Negotiation during call/connection establishment phase; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network
- Abstract
Align edition 1 of the standard to the TSS&TP (part 5) and correct other possible errors based on contributions Develop part 6 (ATSS & PIXIT for the network) of EN 301 067
- Status
- Published
- Publication Date
- 31-Oct-2003
- Technical Committee
- SPN - Services and Protocols for Networks
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Nov-2003
- Due Date
- 01-Nov-2003
- Completion Date
- 01-Nov-2003
- Mandate
- M/213
SIST EN 301 067-6 V2.1.1:2003 is the Slovenian adoption of the ETSI European Standard for Broadband Integrated Services Digital Network (B-ISDN) Digital Subscriber Signalling System No. two (DSS2) connection characteristics during call/connection establishment. It specifies the network-side Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma for implementations at the TB reference point, or the coincident SB/TB reference point. It is aimed at conformance testing of the network DSS2 protocol entity, not the whole network.
What does SIST EN 301 067-6 V2.1.1:2003 specify?
SIST EN 301 067-6 V2.1.1:2003 specifies the conformance-test material for the network side of EN 301 067-1. Clause 1 limits the focus to the TB reference point, or the coincident SB/TB reference point, in the B-ISDN user-network interface.
The document is organized as follows:
| Part | What it covers |
|---|---|
| Clause 1 | Scope |
| Clause 2 | Normative references |
| Clause 3 | Definitions and abbreviations |
| Clause 4 | Abstract Test Method (ATM) |
| Clause 5 | Untestable test purposes |
| Clause 6 | ATS to TP map |
| Clause 7 | PCTR conformance |
| Clause 8 | PIXIT conformance |
| Clause 9 | ATS conformance |
| Annex A | Protocol Conformance Test Report (PCTR) proforma |
| Annex B | Partial PIXIT proforma |
| Annex C | Abstract Test Suite (ATS) |
The foreword states that this is part 6 of a multi-part EN for the same DSS2 connection-characteristics function. The user-side test material is covered in other parts of the series.
What are the key requirements of SIST EN 301 067-6 V2.1.1:2003?
Clause 4 says the network IUT is tested as the DSS2 protocol entity at a particular user-network interface, not as the complete network. In practice, that means the test setup must target the access interface and observe only the behavior relevant to that interface.
The ATS uses a combined remote and multi-party test method. The Main Test Component (MTC) controls the test and assigns verdicts from the lower observation point, while Parallel Test Components (PTCs) stimulate the other interfaces as needed. This matters because some network reactions can only be triggered by events on other interfaces, so the test setup may need several controlled access points.
Clause 4 also names the Point of Control and Observation (PCO) arrangement. The MTC uses PCO L0, and the PTCs use L1, L2, and so on. The practical effect is that verdicts are based on what is seen at L0, while behavior at other PCOs supports the test but does not itself decide pass or fail.
Clause 5 states that there are no untestable test purposes associated with this ATS. Clause 6 gives a one-to-one mapping between the Test Purposes (TPs) in EN 301 067-5 and the ATS test case names, so implementers and testers can trace each test case back to its purpose.
Clauses 7 to 9 set conformance expectations for reports, PIXIT data, and the ATS itself. A test laboratory producing a PCTR shall use the proforma in Annex A, and a conforming ATS implementation shall be technically equivalent to the ATS in Annex C. For users, this means the document defines both what to test and how to document the result.
Annex B gives the partial PIXIT items needed to prepare the Means Of Testing, including test-management timers and parameter values. That is the part that tells a laboratory what implementation-specific data must be collected before running the tests.
What terms does SIST EN 301 067-6 V2.1.1:2003 define?
- Abstract Test Method (ATM) - The testing approach used to arrange components and observation points for conformance testing.
- Abstract Test Suite (ATS) - The set of abstract test cases derived for conformance assessment.
- Implementation Under Test (IUT) - The implementation being checked against the protocol specification.
- System Under Test (SUT) - The overall system configuration that contains the IUT during testing.
- Main Test Component (MTC) - The test component that controls the test execution and observes the main verdict point.
- Parallel Test Components (PTC) - Additional test components used to stimulate or control other interfaces during a multi-party test.
- Protocol Implementation eXtra Information for Testing (PIXIT) - Implementation-specific information needed to prepare and run the tests.
- Point of Control and Observation (PCO) - A point where the test system controls stimuli and observes protocol behavior.
Who uses SIST EN 301 067-6 V2.1.1:2003?
SIST EN 301 067-6 V2.1.1:2003 is used by test laboratories, test realizers, and equipment vendors working on B-ISDN DSS2 network-side implementations. It is also used by conformance-assessment clients who need a PCTR, and by engineers who prepare PIXIT data, design test campaigns, or check whether a network entity conforms to EN 301 067-1.
In practice, the document supports three main tasks: preparing the test environment, executing the ATS, and recording the result in a structured report.
Which standards are used with SIST EN 301 067-6 V2.1.1:2003?
| Reference | What it contributes |
|---|---|
| EN 301 067-1 | The protocol specification being tested |
| EN 301 067-2 | The PICS proforma for the protocol |
| EN 301 067-4 | The user-side ATS and partial PIXIT proforma |
| EN 301 067-5 | The network-side Test Suite Structure and Test Purposes (TSS&TP) |
| EN 300 443-1 | Related B-ISDN DSS2 layer 3 protocol specification for basic call/bearer control |
| EN 300 443-2 | Related PICS proforma for that basic call/bearer control part |
| ISO/IEC 9646-1 to 5 | The conformance-testing framework, ATS method, TTCN, realization, and laboratory requirements |
| ITU-T Recommendation I.413 | The B-ISDN user-network interface reference |
What does the SIST EN 301 067-6 V2.1.1:2003 document contain?
Annex A provides a PCTR proforma with identification, IUT details, test environment, conformance summaries, and a test-campaign report. Annex B provides a partial PIXIT proforma for the laboratory, the client, the SUT, protocol identification, tested configuration, timers, and parameter values.
Annex C contains the ATS. The ATS is produced in Tree and Tabular Combined Notation (TTCN), with both a graphical form (TTCN.GR) and a machine-processable form (TTCN.MP). The test cases cover signalling procedures at the coincident SB/TB and TB reference points, which is the core material a laboratory uses to build executable conformance tests.
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Frequently Asked Questions
SIST EN 301 067-6 V2.1.1:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Negotiation during call/connection establishment phase; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network". This standard covers: Align edition 1 of the standard to the TSS&TP (part 5) and correct other possible errors based on contributions Develop part 6 (ATSS & PIXIT for the network) of EN 301 067
Align edition 1 of the standard to the TSS&TP (part 5) and correct other possible errors based on contributions Develop part 6 (ATSS & PIXIT for the network) of EN 301 067
SIST EN 301 067-6 V2.1.1:2003 is classified under the following ICS (International Classification for Standards) categories: 33.080 - Integrated Services Digital Network (ISDN). The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 301 067-6 V2.1.1:2003 is associated with the following European legislation: Standardization Mandates: M/213. 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 301 067-6 V2.1.1:2003 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.Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Negotiation during call/connection establishment phase; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 067-6 Version 2.1.1SIST EN 301 067-6 V2.1.1:2003en01-november-2003SIST EN 301 067-6 V2.1.1:2003SLOVENSKI
STANDARD
ETSIEN301067-6V2.1.1(2000-06)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;Negotiationduringcall/connectionestablishmentphase;Part6:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthenetworkSIST EN 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(2000-06)2ReferenceREN/SPAN-05241-6KeywordsATM,ATS,B-ISDN,broadband,DSS2,network,PIXITETSI650RoutedesLuciolesF-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 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(2000-06)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.1.1Definitionsrelatedtoconformancetesting.73.1.2DefinitionsrelatedtoEN301067-1.73.2Abbreviations.84AbstractTestMethod(ATM).84.1ConventionsfortestcomponentsandPCOs.95Untestabletestpurposes.106ATStoTPmap.107PCTRconformance.108PIXITconformance.109ATSConformance.11AnnexA(normative):ProtocolConformanceTestReport(PCTR)proforma.12A.1Identificationsummary.12A.1.1Protocolconformancetestreport.12A.1.2IUTidentification.12A.1.3Testingenvironment.12A.1.4Limitsandreservations.13A.1.5Comments.13A.2IUTConformancestatus.13A.3Staticconformancesummary.13A.4Dynamicconformancesummary.14A.5Staticconformancereviewreport.14A.6Testcampaignreport.14A.7Observations.15AnnexB(normative):PartialPIXITproforma.16B.1Identificationsummary.16B.2Abstracttestsuitesummary.16B.3Testlaboratory.16B.4Client(oftheTestLaboratory).17B.5SUT.17B.6Protocolinformation.18B.6.1Protocolidentification.18B.6.2Configurationtobetested.18B.6.3Testmanagementtimers.18B.6.4ParameterValues.19SIST EN 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(2000-06)4AnnexC(normative):AbstractTestSuite(ATS).20C.1TheTTCNGraphicalform(TTCN.GR).20C.1TheTTCNMachineProcessableform(TTCN.MP).20Bibliography.21History.22SIST EN 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(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).Thepresentdocumentispart6ofamulti-partENcoveringtheBroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;Negotiationduringcall/connectionestablishmentphase,asdescribedbelow:Part1:"Protocolspecification[ITU-TRecommendationQ.2962(1996),modified]";Part2:"ProtocolImplementationConformanceStatement(PICS)proformaspecification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)specificationfortheuser";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationfortheuser";Part5:"TestSuiteStructureandTestPurposes(TSS&TP)specificationforthenetwork";Part6:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthenetwork".NationaltranspositiondatesDateofadoptionofthisEN:5May2000DateoflatestannouncementofthisEN(doa):31August2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):28February2001DateofwithdrawalofanyconflictingNationalStandard(dow):28February2001SIST EN 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(2000-06)61ScopeThepresentdocumentspecifiesthenetworkAbstractTestSuite(ATS)fortheTBreferencepointorcoincidentSBandTBreferencepoint(asdefinedinITU-TRecommendationI.413[12])ofimplementationsconformingtothestandardsforthesignallinguser-networklayer3specificationforNegotiationduringcall/connectionestablishmentphaseoftheDigitalSubscriberSignallingSystemNo.two(DSS2)protocolforthepan-EuropeanBroadbandIntegratedServicesDigitalNetwork(B-ISDN),EN301067-1[1].AfurtherpartofthepresentdocumentspecifiestheTestSuiteStructureandTestPurposes(TSS&TP)relatedtothisATSandpartialPIXITproforma.OtherpartsspecifytheTSS&TPandtheATSandpartialPIXITproformafortheUsersideoftheTBreferencepointorcoincidentSBandTBreferencepointofimplementationsconformingtoEN301067-1[1].2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIEN301067-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;Negotiationduringcall/connectionestablishmentphase;Part1:Protocolspecification[ITU-TRecommendationQ.2962(1996),modified]".[2]ETSIEN301067-2:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;Negotiationduringcall/connectionestablishmentphase;Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".[3]ETSIEN301067-4:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;Negotiationduringcall/connectionestablishmentphase;Part4:AbstractTestSuite(ATS)andpartialProtocolImplementationseXtraInformationforTesting(PIXIT)proformaspecificationfortheuser".[4]ETSIEN301067-5:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;Negotiationduringcall/connectionestablishmentphase;Part5:TestSuiteStructureandTestPurposes(TSS&TP)specificationforthenetwork".[5]ETSIEN300443-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;B-ISDNuser-networkinterfacelayer3specificationforbasiccall/bearercontrol;Part1:Protocolspecification[ITU-TRecommendationQ.2931(1995),modified]".[6]ETSIEN300443-2:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;B-ISDNuser-networkinterfacelayer3specificationforbasiccall/bearercontrol;Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".[7]ISO/IEC9646-1(1994):"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part1:Generalconcepts".SIST EN 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(2000-06)7[8]ISO/IEC9646-2(1994):"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part2:AbstractTestSuitespecification".[9]ISO/IEC9646-3(1998):"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part3:TheTreeandTabularCombinedNotation(TTCN)".[10]ISO/IEC9646-4(1994):"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part4:Testrealization".[11]ISO/IEC9646-5(1994):"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part5:Requirementsontestlaboratoriesandclientsfortheconformanceassessmentprocess".[12]ITU-TRecommendationI.413(1993):"B-ISDNuser-networkinterface".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply,inadditiontothosegiveninEN301067-1[1]andEN300443-1[5].3.1.1DefinitionsrelatedtoconformancetestingAbstracttestcase:refertoISO/IEC9646-1[7]AbstractTestMethod(ATM):refertoISO/IEC9646-1[7]AbstractTestSuite(ATS):refertoISO/IEC9646-1[7]ImplementationUnderTest(IUT):refertoISO/IEC9646-1[7]SystemUnderTest(SUT):seeISO/IEC9646-1[7]UpperTester(UT):seeISO/IEC9646-1[7]Lowertester:refertoISO/IEC9646-1[7]ProtocolImplementationConformanceStatement(PICS):refertoISO/IEC9646-1[7]PICSproforma:refertoISO/IEC9646-1[7]ProtocolImplementationeXtraInformationforTesting(PIXIT):refertoISO/IEC9646-1[7]PIXITproforma:refertoISO/IEC9646-1[7]TestPurpose(TP):refertoISO/IEC9646-1[7]PointofControlandObservation(PCO):seeISO/IEC9646-1[7]3.1.2DefinitionsrelatedtoEN301067-1user:DSS2protocolentityattheUsersideoftheuser-networkinterfacewhereaTBreferencepointorcoincidentSBandTBreferencepointappliesuser(SB/TB):DSS2protocolentityattheUsersideoftheuser-networkinterfacewhereacoincidentSBandTBreferencepointappliesuser(TB):DSS2protocolentityattheUsersideoftheuser-networkinterfacewhereaTBreferencepointapplies(userisaprivateISDN)SIST EN 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(2000-06)83.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ATMAbstractTestMethodATSAbstractTestSuiteB-ISDNBroadbandIntegratedServicesDigitalNetworkCMCoordinationMessagesDSS2DigitalSubscriberSignallingSystemNo.twoExTSExecutableTestSuiteIUTImplementationUnderTestLTLowerTesterMOTMeansOfTestingMTCMainTestComponentPCOPointofControlandObservationPDUProtocolDataUnitPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtraInformationforTestingPTCParallelTestComponentsSUTSystemUnderTestTPTestPurposeTSSTestSuiteStructureTTCNTreeandTabularCombinedNotationUTUpperTesterVCIVirtualChannelIdentifierVPCIVirtualPathConnectionIdentifier4AbstractTestMethod(ATM)TherequirementfortestingthenetworkIUTistofocusonthebehaviourofthenetworkIUTattheuser-networkinterfacewhereaTBreferencepointorcoincidentSBandTBreferencepointapplies.ThustheIUTisthenetworkDSS2protocolentityataparticularuser-networkinterfaceandisnotthewholenetwork.ItispossibletospecifyanATSbasedonaSingleparty(remote)testmethodforsuchanIUT.However,itisconsideredthatanATSbasedonsuchanapproachisoflimiteduseastheonlywaytospecifyIUTgeneratedPDUsistousethe"implicitsend"statement.ManyusersofsuchanATSwouldreplacethe"implicitsend"statementswithdescriptionsofthebehaviouratotherinterfaces.AnATSbasedonamulti-partytestmethodisconsideredtobemoreusefulinthatitisclosertohowarealtestsuitewouldbeconstructed.Suchatestmethodspecifiesbehaviouratmultiplenetworkinterfaces.Oneveryimportantlimitationhereisthattestsarefocussedononeparticularinterface.ThusthetestsystemismadeuponeMainTestComponent(MTC)andoneormoreParallelTestComponents(PTC),seefigure1.SIST EN 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(2000-06)94.1ConventionsfortestcomponentsandPCOsMasterpartSlavepartMTCAPTC1A1(CP)L0(PCO)L1(PCO)IUTNETWORKFigure1:Multi-partytestmethodInamaster/slavearrangement,theMTCisconsideredtobethemasterwhilethePTCsaretheslaves.The"slave"testersareonlyanexplicitdescriptionofhowtodealwiththeremoteinterfacesduringthetestingprocess,i.e."howtomaketheIUTsendtherequiredmessage".Thismeans,inparticular,thattheverdictwillonlybeassignedfromtheprotocolaspectsobservedontheinterfaceundertest(i.e.bythe"master"tester),asitwouldbeobservedbyaterminalconnectedtothisinterface.Afailureinthecorrelationbetweentheprotocolatthedifferentinterfacestowhichthedifferenttestersareconnected,i.e.inthemechanismofthefunctionalserviceitself,willnotcauseaFAILverdict.Forinstance,iftheIUTfailstosendamessageonthetestedinterfaceafteranotherinterfacehasreceivedtheproperstimulus,theverdictwillbeINCONCLUSIVE.TheMTCMTCAhastwofunctionsinthisconfiguration.Firstly,ithastheMTCfunctionofcontrollingtheoneormorePTCs.ThusitisresponsibleforstartingthePTCsandafterwardscoordinatesactivitiesbyexchangingCoordinationMessages(CM)withthePTCs.SecondlyitisresponsibleforthebehaviouroftheLowerTester(LT)atPCOL0.Acombinationoftheremoteandmulti-partytestmethodsisapplied.Ascanbeseenfromfigure1,severalPCOsareused.AllPCOsresideattheserviceaccesspointsbetweenlayers2and3.SIST EN 301 067-6 V2.1.1:2003
ETSIETSIEN301067-6V2.1.1(2000-06)10MTCSUTPTC1Layer3Layer2Layer1L0IUTL1Layer3Layer2Layer1ServiceproviderFigure2:Combinationoftheremoteandmulti-partytestmethodsTheMTCPCOisnamed"L0"("L"forLower).TheL0PCOisusedtocontrolandobservethebehaviouroftheIUTandtestcaseverdictsareassigneddependingonthebehaviourobservedatthisPCO.ThePTCsPTC1,PTC2etc.usePCOsL1,L2etc.ThesePCOsareusedtocontroland,inalimitedway,observethebehaviourofthenetworkequipmentatinterfacesotherthantheoneundertest.NoverdictsareassignedatthesePCOs.Asstatedinapreviousparagraph,thenon-receiptofnetworkgeneratedmessagesatL0,whicharestimulatedbyeventsattheL1,L2etc.,willresultinINCONCLUSIVEratherthanFAILverdictsbeingassigned.PTC2isonlyactivatedinthattestcasesthattesttheproceduresattheaccessbetweenarootuserandtheIUT,whenmorethanonepartyisinvolvedinthecallbetweentherootuserandtheIUT.IntestcaseswhichverifythattheIUTrejectsinvalidorunacceptableSETUPmessages,noPTCisactivatedatall,astheserejectionproceduresareconsideredlocaltotheaccessbetweenIUTandMTC.5UntestabletestpurposesTherearenountestabletestpurposesassociatedwiththisATS.6ATStoTPmapTheidentifiersusedfortheTPs(seeEN301067-5[4])arereusedastestcasenames.Thusthereisastraightforwardone-to-onemapping.7PCTRconformanceAtestlaboratory,whenrequestedbyaclienttoproduceaPCTR,isrequired,asspecifiedinISO/IEC9646-5[11],toproduceaPCTRconformantwiththePCTRtemplategiveninannexBofISO/IEC9646-5[11].Furthermore,atestlaboratory,offeringtestingfortheATSspecificationcontainedinannexC,whenrequestedbyaclienttoproduceaPCTR,isrequiredtoproduceaPCTRconf
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