SIST EN 301 062-3 V1.1.1:2005

• Abstract:

  TSS & TP for ETS 301 062-1, NNI extension to support VPN applications

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• 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-338
• Ref Project: ETSI EN 301 062-3 V1.1.1 (2000-08) - Integrated Services Digital Network (ISDN); Signalling System No.7; Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows; Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification

SIST EN 301 062-3 V1.1.1:2005 is the Slovene adoption of an ETSI European Standard for Integrated Services Digital Network (ISDN) signalling over Signalling System No.7. It specifies the Test Suite Structure and Test Purposes (TSS&TP) used to validate support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows in exchanges that implement the ISUP v3 Application Transport Mechanism.

What does SIST EN 301 062-3 V1.1.1:2005 specify?

SIST EN 301 062-3 V1.1.1:2005 specifies the conformance test structure and the test purposes for the application transport mechanism used with VPN applications and PSS1 information flows. The document is for validation testing of exchanges that implement the relevant ISUP v3 functions.

The scope says the document applies to exchanges that have implemented the ISUP v3 protocol specification for the Application Transport Mechanism and APM support of VPN applications. It is applicable to all exchange types defined in the ISUP v3 protocol specification, and it does not cover compatibility testing.

The document is organized into clauses on scope, references, definitions and abbreviations, implementation under test and test methods, Test Suite Structure (TSS), Test purposes (TP), and Test Coverage. The test-purpose section is the core of the document.

What are the key requirements of SIST EN 301 062-3 V1.1.1:2005?

SIST EN 301 062-3 V1.1.1:2005 sets up how an exchange is to be tested, what behaviours are to be checked, and how the test purposes are named and grouped. In practice, this gives implementers and labs a common way to prepare conformance tests and to map results back to the protocol requirements in ITU-T Recommendation Q.765.1.

The implementation under test is an exchange

Clause 4 identifies the System Under Test (SUT) as an exchange and the Implementation Under Test (IUT) as the ISUP v3 part of that exchange, mainly the part responsible for the Application Transport Mechanism and VPN support. This matters because the test cases are built around exchange behaviour, not around a generic protocol stack.

The test method is distributed and uses concurrent TTCN

Clause 4 states that the chosen Abstract Test Method (ATM) is a distributed multi-party method, and that the Abstract Test Suite (ATS) is written in concurrent TTCN. That means the test setup is designed for realistic signalling interactions with separate observation and control points.

Local and transit exchange configurations are both covered

Clause 4 gives separate test configurations for local exchanges and transit exchanges. It also defines how the lower tester, upper tester, and Points of Control and Observation (PCO) are used to observe ISUP, PSS1, and maintenance behaviour. This matters because a vendor may need to prove conformance in more than one exchange role.

The Test Suite Structure groups the behaviours by topic

Clause 5 groups the test purposes under named areas such as ADDI_PINP, ADDI_PANP, CNID, ATII, OVER, VPN_SUP, NOT_SUP, GPINX, and ERROR. These groups help readers see which protocol features are being checked, from number handling to gateway behaviour and error handling.

Test purposes are split into valid and inopportune stimulus

Clause 6 defines a naming convention for TP identifiers and separates test purposes into V and I groups. It also states that each TP includes the TSS identifier, TP identifier, reference to Q.765.1, selection expression, configuration, test purpose, and any pre-test conditions. In practice, that makes each test case traceable to the protocol requirement it checks.

The test purposes focus on VPN, numbering, gateway, and error behaviour

Clause 6.3 covers behaviour such as transferring called and calling numbers, handling Corporate Telecommunications Network Identifier (CNID), using Application Transport Instruction Indicators (ATII), overlap sending, VPN supported and VPN not supported cases, Gateway PINX transformation, and several error indications. This is the part a test engineer uses to decide which signalling scenarios must be exercised.

Coverage is summarized at the end

Clause 7 summarizes the test coverage by group. That helps a buyer, lab, or quality manager see whether the document covers the protocol areas that matter for a given exchange implementation.

What terms does SIST EN 301 062-3 V1.1.1:2005 define?

• Abstract Test Case (ATC) - a complete, independent specification of the actions needed to reach one test purpose and obtain a verdict.
• Abstract Test Method (ATM) - the abstract description of how the IUT is tested, independent of a specific test rig.
• Abstract Test Suite (ATS) - a set of abstract test cases used for conformance testing.
• Implementation Under Test (IUT) - the protocol implementation being studied by testing.
• Means of Testing (MOT) - the equipment and procedures used to execute test cases and produce a conformance log.
• Protocol Implementation Conformance Statement (PICS) - the supplier’s statement of which capabilities are implemented.
• Protocol Implementation eXtra Information for Testing (PIXIT) - the supplier’s testing information needed to run the test suite.

Who uses SIST EN 301 062-3 V1.1.1:2005?

SIST EN 301 062-3 V1.1.1:2005 is used by exchange manufacturers, protocol implementers, and conformance test laboratories working on ISDN and SS7-based VPN support. It is also useful for quality managers and buyers who need to check that an exchange implementation can be validated against the specified test purposes.

In practice, users apply it to prepare PICS and PIXIT material, design test setups for local or transit exchange roles, and assess signalling behaviour at the network-network interface (NNI).

Which standards are used with SIST EN 301 062-3 V1.1.1:2005?

• ETSI EN 301 062-2 - provides the Protocol Implementation Conformance Statement (PICS) proforma.
• ETSI EN 301 062-4 - provides the Abstract Test Suite (ATS) and Protocol Implementation eXtra Information for Testing (PIXIT) proforma.
• ISO/IEC 9646-1, 9646-3, 9646-7 - provide the conformance testing framework, TTCN, and ICS concepts.
• ITU-T Recommendation E.164 - defines the ISDN number structure used in the document.
• ITU-T Recommendations Q.701 to Q.707 - provide the Message Transfer Part (MTP) basis.
• ITU-T Recommendations Q.762 to Q.764 - provide ISUP message functions, formats, codes, and procedures.
• ITU-T Recommendation Q.765.1 - defines the VPN support over the Application Transport Mechanism that this document tests.

What does the SIST EN 301 062-3 V1.1.1:2005 document contain?

The document contains the test architecture, naming rules, and a set of test-purpose tables for VPN-related ISUP signalling. Clause 4 includes figures for the system under test and for local and transit exchange configurations, showing where the lower tester, upper tester, and PCOs are placed.

Clause 5 gives the Test Suite Structure, and clause 6 gives the TP naming convention and the detailed test-purpose descriptions. Those TP entries reference Q.765.1 requirements and include the configuration, stimulus type, and any pre-test conditions needed for execution.

Clause 7 summarizes test coverage, and the bibliography points to related test methodology documents and the companion parts of EN 301 062.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LNDFLMDIntegrated Services Digital Network (ISDN); Signalling System No.7; Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows; Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 062-3 Version 1.1.1SIST EN 301 062-3 V1.1.1:2005en01-januar-2005SIST EN 301 062-3 V1.1.1:2005SLOVENSKI
STANDARD
ETSIEN301062-3V1.1.1(2000-08)EuropeanStandard(Telecommunicationsseries)IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;SupportofVirtualPrivateNetwork(VPN)applicationswithPrivatenetworkQreferencepointSignallingSystemnumber1(PSS1)informationflows;Part3:TestSuiteStructureandTestPurposes(TSS&TP)specificationSIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)2ReferenceDEN/SPS-01032-3KeywordsISDN,ISUP,PINX,SS7,TC,VPN,TSS&TPETSI650RoutedesLuciolesF-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 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)3ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.73.2.1ISUPabbreviations.84Implementationundertestandtestmethods.84.1Identificationofthesystemandimplementationundertest.84.2ATMandtestingconfigurationforISUPv3-APMsupportofVPN.94.3Localexchanges.94.4Transitexchanges.104.4.1Master-slaveaspectsinthetestconfiguration.115TestSuiteStructure(TSS).116Testpurposes(TP).126.1Introduction.126.2Testpurpose(TP)namingconvention.126.2.1Sourceoftestpurposedefinition.126.2.2Testpurposestructure.126.3TestpurposesfortheSignallingSystemNumber7,APMsupportofVirtualPrivateNetworkapplicationswithPSS1informationflows.126.3.1VPNASE.137TestCoverage.19Bibliography.20History.21SIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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).Thepresentdocumentispart3ofamulti-partENcoveringtheIntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;SupportofVirtualPrivateNetwork(VPN)applicationswithPrivatenetworkQreferencepointSignallingSystemnumber1(PSS1)informationflows,asidentifiedbelow:Part1:"Protocolspecification[ITU-TRecommendationsQ.765.1andQ.699.1,modified]";Part2:"ProtocolImplementationConformanceStatement(PICS)proformaspecification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)specification";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)specification".NationaltranspositiondatesDateofadoptionofthisEN:23June2000DateoflatestannouncementofthisEN(doa):30September2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31March2001DateofwithdrawalofanyconflictingNationalStandard(dow):31March2001SIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)51ScopeThepresentdocumentcontainsthevalidation(conformance)testspecificationfortheapplicationtransportmechanism,supportofVPNapplicationswithPSS1informationflowsdefinedinITU-TRecommendationQ.765.1[18].ThepresentdocumentappliesonlytoexchangeshavingimplementedtheISUPv3protocolspecificationfortheApplicationTransportMechanismandAPMsupportofVPNapplicationsfortheexchange.ItisapplicableforvalidationtestingofalltypesofexchangesasdefinedintheISUPv3protocolspecification.Thepresentdocumentdoesnotdealwithcompatibilitytesting.EN301062-2[1]presentstheProtocolImplementationConformanceStatements(PICS)andthedocumentEN301062-4[2]presentstheProtocolImplementationeXtraInformationforTesting(PIXIT),ProtocolConformanceTestReport(PCTR)andtheATSfortheapplicationtransportmechanism,supportofVPNapplicationswithPSS1informationflows.ThesupplierofanimplementationthatisclaimedtoconformtothereferencespecificationfortheSignallingSystemNumber7,ApplicationTransportMechanism,supportofVPNapplicationswithPSS1informationflowsITU-TRecommendationQ.765.1[18]isrequiredtocompleteacopyofthePICSproformaprovidedinannexAdocumentEN301062-2[1].2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIEN301062-2:"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;SupportofVirtualPrivateNetwork(VPN)applicationswithPrivatenetworkQreferencepointSignallingSystemnumber1(PSS1)informationflows;Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".[2]ETSIEN301062-4:"IntegratedServicesDigitalNetwork(ISDN);SignallingSystemNo.7;SupportofVirtualPrivateNetwork(VPN)applicationswithPrivatenetworkQreferencepointSignallingSystemnumber1(PSS1)informationflows;Part4:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecification".[3]ISO/IEC9646-1(1994):"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part1:Generalconcepts".[4]ISO/IEC9646-3(1998):"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part3:TheTreeandTabularCombinedNotation(TTCN)".[5]ISO/IEC9646-7(1995):"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part7:ImplementationConformanceStatements".[6]ITU-TRecommendationE.164(1997):"Theinternationalpublictelecommunicationnumberingplan".[7]ITU-TRecommendationQ.701(1993):"Functionaldescriptionofthemessagetransferpart(MTP)ofSignallingSystemNo.7".[8]ITU-TRecommendationQ.702(1988):"Signallingdatalink".SIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)6[9]ITU-TRecommendationQ.703(1996):"Signallinglink".[10]ITU-TRecommendationQ.704(1996):"Signallingnetworkfunctionsandmessages".[11]ITU-TRecommendationQ.705(1993):"Signallingnetworkstructure".[12]ITU-TRecommendationQ.706(1993):"Messagetransferpartsignallingperformance".[13]ITU-TRecommendationQ.707(1988):"Testingandmaintenance".[14]ITU-TRecommendationQ.762(1997):"SignallingSystemNo.7;ISDNuserpartgeneralfunctionsofmessagesandsignals".[15]ITU-TRecommendationQ.763(1997):"SignallingSystemNo.7;ISDNuserpartformatsandcodes".[16]ITU-TRecommendationQ.764(1997):"SignallingSystemNo.7;ISDNuserpartsignallingprocedures".[17]ITU-TRecommendationQ.765:"SignallingSystemNo.7;ApplicationTransportMechanism".[18]ITU-TRecommendationQ.765.1:"SignallingSystemNo.7;ApplicationTransportMechanism,supportofVPNapplicationswithPSS1informationflows".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:• termsdefinedinISDNUserPart(ISUP)referencespecificationITU-TRecommendationsQ.765.1[18],Q.765[17],Q.763[15]andQ.764[16];• termsdefinedinISO/IEC9646-1[3],ISO/IEC9646-3[4]andinISO/IEC9646-7[5].Inparticular,thefollowingtermsapply:AbstractTestCase(ATC):completeandindependentspecificationoftheactionsrequiredtoachieveaspecifictestpurpose,definedatthelevelofabstractionofaparticularAbstractTestMethod,startinginastabletestingstateandendinginastabletestingstate(seeISO/IEC9646-1[3],subclause3.3.3)AbstractTestMethod(ATM):descriptionofhowanIUTistobetested,givenatanappropriatelevelofabstractiontomakethedescriptionindependentofanyparticularrealizationofaMeansofTesting,butwithenoughdetailtoenableabstracttestcasestobespecifiedforthismethod(seeISO/IEC9646-1[3],subclause3.3.5)AbstractTestSuite(ATS):testsuitecomposedofabstracttestcases(seeISO/IEC9646-1[3],subclause3.3.6)ImplementationUnderTest(IUT):implementationofoneormoreOSIprotocolsinanadjacentuser/providerrelationship,beingpartofarealopensystemwhichistobestudiedbytesting(seeISO/IEC9646-1[3],subclause3.3.43)ISDNnumber:numberconformingtothenumberingandstructurespecifiedinITU-TRecommendationE.164[6]MeansofTesting(MOT):combinationofequipmentandproceduresthatcanperformthederivation,selection,parameterizationandexecutionoftestcases,inconformancewithareferencestandardizedATS,andcanproduceaconformancelog(seeISO/IEC9646-1[3],subclause3.3.54)PICSproforma:documentintheformofaquestionnaire,whichwhencompletedforanimplementationorsystembecomesthePICSPIXITproforma:documentintheformofaquestionnaire,whichwhencompletedfortheIUTbecomesthePIXITSIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)7PointofControlandObservation(PCO):pointwithinatestingenvironmentwheretheoccurrenceoftesteventsistobecontrolledandobserved,asdefinedinanAbstractTestMethod(seeISO/IEC9646-1[3],subclause3.3.64)Pre-testcondition:settingorstateintheIUTwhichcannotbeachievedbyprovidingstimulusfromthetestenvironmentProtocolImplementationConformanceStatement(PICS):statementmadebythesupplierofaprotocolclaimedtoconformtoagivenspecification,statingwhichcapabilitieshavebeenimplemented(seeISO/IEC9646-1[3],subclause3.3.39andsubclause3.3.80)ProtocolImplementationeXtraInformationforTesting(PIXIT):statementmadebyasupplierorimplementorofanIUT(protocol)whichcontainsorreferencesalloftheinformationrelatedtotheIUTanditstestingenvironment,whichwillenablethetestlaboratorytorunanappropriatetestsuiteagainsttheIUT(seeISO/IEC9646-1[3],subclause3.3.41andsubclause3.3.81)SystemUnderTest(SUT):realopensysteminwhichtheIUTresides(seeISO/IEC9646-1[3],subclause3.3.103)3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ACMAddressCompleteMessageANMANswerMessageAPMApplicationtransPortMechansimprotocolcontrolASEApplicationServiceEntityATIIApplicationTransportInstructionIndicatorsATMAbstractTestMethodATSAbstractTestSuiteCNIDCorporateTelecommunicationsNetworkIdentifierCONCONnectCPGCallProgressmessaGeCPNCallingPartyNumberDLEDestinationLocalExchangeGPINXGatewayPINXIAMInitialAddressMessageISDNIntegratedServicesDigitalNetworkISUPISDNUserPartIUTImplementationUnderTestLABPCOforsignallinglinkLACPCOforsignallinglinkLTLowerTesterMNTMaintenancePCOMOTMeansOfTestingMTPMessageTransferPartNNINetwork-NetworkInterfaceOLEOriginatingLocalExchangePANPublicAddressedNodePCOPointofControlandObservationPICSProtocolImplementationConformanceStatementPINPublicInitiatingNodePINXPrivateIntegratedServicesNetworkExchangePIXITProtocolImplementationeXtraInformationforTestingPSS1PrivatenetworkQreferencepointSignallingSystemnumber1SPSignallingPointSUTSystemUnderTestTCPTestCoordinationProceduresTPTestPurpose(contextdependent)TPINXTransitPINXTSSTestSuiteStructureTTCNTreeandTabularCombinedNotationUTUpperTesterVPNVirtualPrivateNetworkSIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)8TheISUPmessageacronymscanbefoundintable2ofITU-TRecommendationQ.762[14].TheAPMprimitivesacronymscanbefoundinthedifferenttablesofITU-TRecommendationQ.765[17].TheVPNprimitivesacronymscanbefoundinthedifferenttablesofITU-TRecommendationQ.765.1[18].3.2.1ISUPabbreviationsThefollowingabbreviationsapplyforISUPparametersandparametervalues.AdSgAddressSignalsCdPNcalledpartynumberCgPNCallingPartyNumberGenNbgenericnumberparameterGenNotGenericNotificationIUTImplementationUnderTestLABPCOforsignallinglinkLTLowerTesterMNTMaintenancePCOPANPublicAddressedNodePCOPointofControlandObservationPINPublicInitiatingNodeTCPTestCoordinationProceduresTMRTransmissionMediumRequirementTPINXTransitPINUSIUserServiceIndicatorUTUpperTesterUTUpperTester4Implementationundertestandtestmethods4.1IdentificationofthesystemandimplementationundertestTheSystemUnderTest(SUT)isanexchange.TheImplementationUnderTest(IUT)istheISUPv3implementationinthisexchange,mainlythepartresponsiblefortheApplicationTransportMechanism,supportofVPNapplicationswithPSS1informationflows,asshowninfigure1.TheprotocolfunctionsfortheApplicationTransportMechanism,supportofVPNapplicationswithPSS1informationflows'relatestothesignallingassociationswithabearer(ISUP).ThereforethedefinedISUPBasicCallanditsassociatedformatsandcodesarerequiredtosupporttheApplicationTransportMechanismforVPNapplications.Thefollowingmainsubjectshavetobeconsideredinthisarea:a)APM-userProtocolControl(APM-userApplicationServiceElement);b)ApplicationTransportMechanismprotocolcontrol(APMApplicationServiceElement);c)ISUPBasicCall(ISUPApplicationServiceElement.SIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)9ISUPISUPExchangeSUTIUTISUPv3ISUPBasicCallAPMPSS1APM-ApplicationTransportMechansimProtocolControlISUP-ISDNUserPartIUT-ImplementationUnderTestSUT-SystemUnderTestQSIG/PSS1Figure1:TheSystemUnderTestTheISUPsignallingprotocolcanbeobservedontheSSNo.7linkontheNetwork-NetworkInterface(NNI).4.2ATMandtestingconfigurationforISUPv3-APMsupportofVPNTheAbstractTestMethod(ATM)chosenfortheApplicationTransportMechanism,supportofVPNapplicationswithPSS1informationflows'specificationisthedistributedmulti-partytestmethod.TheATMisdefinedatanappropriatelevelofabstractionsothatthetestcasesmaybespecifiedappropriately,withoutaddingrestrictionstotheimplementationundertest.Thetestingarchitecturesaredescribedinthefollowingsubclauses.TheATSiswritteninconcurrentTTCN.4.3LocalexchangesAsmentionedabove,theIUTcanbetestedwithindifferentconfigurations.ThefollowingtextdescribesthetestconfigurationfortheIUTwherethesoftwareforIUSPv3andalsotheVPNpartresideinalocalexchange.Figure2showsthelogicaltestcomponentsoftheadoptedtestconfiguration.ThemaintestcomponentislocatedontherightsideoftheIUT,itcontainstheISUPpart.OntheleftsidethereisaparalleltestcomponentwhichcoverstheVPNpart.ToobserveandcontrolthemessageflowontheISUPandVPNsideforeachsideaPointofControlandObservation(PCO)isneeded.ThePCOfortheISUPlinkisabbreviatedwithan'L'followedbytwolettersindicatingtheinterface.ThePCOforthePSS1interfaceisabbreviatedwithan'A'followedbytwolettersindicatingtheinterface.TheLABPCOisusedbytheLowerTester(LT)tocontrolandobservetheISUPonthesignallingtotheexchange.TheACHPCOisusedbytheUpperTester(UT)tocontrolandobservethePSS1signallingtothePIN.TheMNTPCOisusedbytheUpperTester(UT)tocontrolandobservethemaintenancefunctionsoftheexchange.SIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)10Thisconfigurationtotestthelocalexchangesispresentedinfigure2.SPBIUTLTNetworkserviceproviderLABISUPlinkTCPLTACHPINUTMaintenanceAccessserviceproviderPSS1UNITPINXTCPFigure2:APMtestconfigurationforlocalexchanges4.4TransitexchangesTheconfigurationproposedfortestingtransitexchangesisshowninfigure3.Inordertotesttheprotocolandfunctionalityoftransit,oneneedstoconsidertheincomingandoutgoingsideoftheSUT.SPBTCPMNTLABISUPlinkTCPLTISUPlinkSPCLACUTMaintenanceNetworkserviceproviderNetworkserviceproviderLTLACIUTPANPINTPINXFigure3:APMtestconfigurationfortransitexchangesTheIUTisobservedandcontrolledfromtwoISUPlinkswithassociatedcircuits.ThePointsofControlandObservation(PCO)arelabelledLABononeside,LAContheother.TheLABandLACPCOsareusedbytheLowerTestersforcontrollingtheISUPsignallinglink.TheMNTPCOisusedbytheUpperTestertocontrolandobservethemaintenancefunctionsoftheexchange.TheTestCo-ordinationProcedures(TCP)allowforcommunicationbetweenthetesters.Thetestcomponentsaremostlyimplicitlyco-ordinated(asynchronously);theTCPsareonlyusedwhenitisnecessarytoobtaintheverdictfromtheparalleltestcomponent.TheISUPPDUstobesentandobservedontheLAB/LACPCO'ssideallowforPDUconstraintstobespecifiedandcodeddowntothebitlevel.SIST EN 301 062-3 V1.1.1:2005

ETSIETSIEN301062-3V1.1.1(2000-08)11TheunderlyingnetworkserviceprovideristheMessageTransferPart(MTP)protocolasspecifiedinITU-TRecommendationsQ.701[7]toQ.707[13].4.4.1Master-slaveaspectsinthetestconfigurationFigures2and3showthelogicaltestcomponentsoftheadoptedtestconfiguration.ThemaintestcomponentislocatedontherightsideoftheIUTanditcontainstheISUPpart.IncasetestingthetransitbehaviouroftheIUT,theparalleltestcomponentontheleftsidecontainsalsotheISUPpart.Asmentionedabove,thesetestspecificationincludetestsforboth,theIUTgivenaslocalandasatransitexchange(internationalandnational).Attestexecutionexactlyoneoftheseconfigurationswillbechosen,basedontheinformationprovidedinthePICSandPIXIT.Themessageflowinthetestcasesisdesignedinsuchawaythattheverdictisassignedbasedonobservingthebehaviourontherightsideand/orleftside,respectively
...