SIST EN 301 062-3 V1.1.1:2005
(Main)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
General Information
- Abstract
TSS & TP for ETS 301 062-1, NNI extension to support VPN applications
- 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-338
Overview
SIST EN 301 062-3 V1.1.1:2005 is a Slovenian national adoption of the European Standard EN 301 062-3, which defines the Test Suite Structure and Test Purposes (TSS&TP) for Integrated Services Digital Network (ISDN) systems using Signalling System No.7 (SS7) to support Virtual Private Network (VPN) applications. Specifically, this standard focuses on exchanges implementing the ISDN User Part version 3 (ISUPv3), ensuring the correct support of VPN functionality via PSS1 (Private network Q reference point Signalling System number 1) information flows across network interfaces.
The document offers a structured approach to conformance testing by providing a framework for verifying the interoperability and functional correctness of system components involved in VPN applications utilizing ISUP, SS7, and PSS1 protocols.
Key Topics
Test Suite Structure (TSS)
Defines the organizational structure of the test suite, outlining the classification and logical grouping of test purposes. This includes naming conventions and identifiers for addressing key interoperability scenarios between ISUP and PSS1.Test Purposes (TP)
Describes individual validation objectives for requirements derived from referenced protocol standards, such as ITU-T Q.765.1. It lists explicit test cases covering both typical (valid) and exceptional (error) behaviors of exchanges under test.Implementation Under Test (IUT) and Test Configurations
Details the architecture and configuration options for the System Under Test (SUT) and Implementation Under Test (IUT), distinguishing between local and transit exchange scenarios, complete with specified points of control and observation (PCOs).Selection Expressions and Pre-test Conditions
Provides mechanism to tailor test execution based on system roles (e.g., originating/terminating exchange, transit/gateway functions), including conditional logic for skipping or including specific test cases.Error Handling & Management Notifications
Specifies how systems should respond to various protocol errors, including expected error codes, management notifications, and requirements for the release of calls in unsupported scenarios.
Applications
SIST EN 301 062-3 V1.1.1:2005 is vital for:
Equipment Manufacturers:
Ensuring that ISDN exchanges and nodes correctly implement support for VPN applications using ISUP and PSS1 protocols, as required by ETSI and ITU-T standards.Network Operators:
Validating and maintaining compatibility of their telecommunication infrastructure, particularly when deploying or upgrading VPN capabilities over ISDN/SS7 networks.Conformance Test Labs:
Developing and executing internationally recognized test suites to assess compliance of network elements according to the TSS&TP specifications, ensuring robust and interoperable VPN implementations.Quality Assurance:
Facilitating comprehensive protocol conformance and functional testing during product development, certification, and field deployment phases.
Related Standards
- EN 301 062-1: Protocol specification for ISDN; SS7; VPN applications with PSS1.
- EN 301 062-2: Protocol Implementation Conformance Statement (PICS) proforma specification.
- EN 301 062-4: Abstract Test Suite (ATS) and Protocol Implementation extra Information for Testing (PIXIT) proforma specification.
- ITU-T Q.765.1: Defines application transport mechanism support for VPN applications with PSS1 information flows.
- ITU-T Q.765: Application Transport Mechanism.
- ISO/IEC 9646 (parts 1, 3, and 7): Conformance testing methodology and framework.
- ITU-T Q.701–Q.707: SS7 message transfer parts and test/maintenance recommendations.
Keywords: ISDN, SS7, VPN, PSS1, ISUP, TSS&TP, test suite, protocol conformance, network interface, conformance testing, telecommunications standards, ETSI, SIST.
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Frequently Asked Questions
SIST EN 301 062-3 V1.1.1:2005 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "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". This standard covers: TSS & TP for ETS 301 062-1, NNI extension to support VPN applications
TSS & TP for ETS 301 062-1, NNI extension to support VPN applications
SIST EN 301 062-3 V1.1.1:2005 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 301 062-3 V1.1.1:2005 is associated with the following European legislation: Standardization Mandates: BC-T-338. 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 301 062-3 V1.1.1:2005 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.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.:+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 301 062-3 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
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