SIST EN 301 068-2 V1.1.3:2003

• Abstract:

  This EN will provide the PICS for DEN/SPS-05081-1

• Status: Published
• Publication Date: 30-Nov-2003
• Withdrawal Date: 30-Sep-2003
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 301 068-2 V1.1.3 (2000-05) - Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification

SIST EN 301 068-2 V1.1.3:2003 is the Slovenian adoption of ETSI EN 301 068-2 for Broadband Integrated Services Digital Network (B-ISDN) Digital Subscriber Signalling System No. two (DSS2). It specifies a Protocol Implementation Conformance Statement (PICS) proforma for the connection characteristics function, focused on ATM transfer capability and traffic parameter indication. Suppliers use it to declare, in a standard format, what a user or network implementation supports before conformance testing.

What does SIST EN 301 068-2 V1.1.3:2003 specify?

SIST EN 301 068-2 V1.1.3:2003 defines the PICS proforma for EN 301 068-1. The document tells a supplier what information to complete, how to present it, and how the answers are judged for conformance.

Clause 1 gives the scope, clause 2 lists the references, clause 3 defines terms and abbreviations, and clause 4 states the conformance rule. Annex A is normative and contains the PICS questionnaire.

In practice, this means the document is not the protocol itself and not a test suite. It is the structured declaration that testing and procurement teams use to identify which protocol features are implemented.

What are the key requirements of SIST EN 301 068-2 V1.1.3:2003?

Completing the PICS proforma

The supplier of an implementation claimed to conform to EN 301 068-1 must complete the PICS proforma in Annex A and identify the supplier, the implementation under test (IUT), and the system under test (SUT). This matters because the completed form is the formal record of what is actually implemented.

Declaring the role

Table A.1 requires the implementation to support exactly one major role: user role or network role. That choice determines which parts of Annex A are completed, so the PICS has to match the side of the interface being declared.

Declaring supported capabilities

Tables A.2 and A.8 cover major capabilities for the user and network roles, including DBR, SBR, ABR and ABT ATM transfer capability (ATC). The proforma uses conditional items for variants such as SBR1, SBR2/3-like, ABT-IT and ABT-DT, so the supplier must state which options are supported rather than implying full support by default.

Handling subsidiary capabilities and local tagging

Tables A.3 and A.9 ask about subsidiary capabilities such as recognizing additional Broadband bearer capability code points and handling traffic management options for local support of tagging. The notes explain how local tagging relates to SBR configuration 2 or 3, which is important when checking interoperability between implementations.

Declaring message elements in SETUP and CONNECT

Tables A.4 to A.7 and A.10 to A.13 cover information elements in CONNECT and SETUP messages, both received and sent, for the user and network roles. These tables show what must be supported for ABR setup parameters, ATM traffic descriptor, and minimum acceptable ATM traffic descriptor, so the PICS captures the exact signaling behavior at call setup.

Using the status and support rules correctly

Annex A defines the status codes m, o, n/a, x, o.i, ci, c:o and c:m, and the support entries Y, N and N/A. It also states that support for a received PDU requires the ability to parse all valid parameters in that PDU, which prevents a vendor from claiming support for a message it cannot fully process.

Following the conformance rule

Clause 4 requires the completed PICS to be technically equivalent to Annex A and to preserve the numbering, naming and order of the items. That protects comparability between suppliers, which is what makes the PICS useful in procurement and conformance evaluation.

What terms does SIST EN 301 068-2 V1.1.3:2003 define?

• Implementation Conformance Statement (ICS) - A supplier’s statement of which capabilities an implementation or system has implemented.
• ICS proforma - A questionnaire form that becomes an ICS when it is completed for a specific implementation or system.
• Protocol Implementation Conformance Statement (PICS) - An ICS for an implementation or system claimed to conform to a specific protocol specification.
• Implementation Under Test (IUT) - The implementation being assessed and described in the PICS.
• System Under Test (SUT) - The wider system in which the IUT resides.
• ATM transfer capability (ATC) - The traffic transfer capability being signaled and declared in the connection characteristics.
• Asynchronous Transfer Mode (ATM) - The transport mode used in the B-ISDN signaling context.
• PDU - Protocol Data Unit, the signaling unit for which supported parameters are declared.

Who uses SIST EN 301 068-2 V1.1.3:2003?

SIST EN 301 068-2 V1.1.3:2003 is used by suppliers of B-ISDN DSS2 implementations, especially teams describing user-side or network-side behavior. It is also used by conformance test labs, quality managers, and technical buyers who need a standardized statement of supported call control, traffic parameter and ATM transfer capability features. The document is relevant wherever basic point-to-point or point-to-multipoint call/bearer connections are being implemented and checked.

What changed in SIST EN 301 068-2 V1.1.3:2003 from the previous edition?

SIST EN 301 068-2 V1.1.3:2003 is the V1.1.3 edition of the document. The history lists V1.1.2 as the earlier edition and V1.1.3 as the published version.

Which standards are used with SIST EN 301 068-2 V1.1.3:2003?

• EN 301 068-1 - The protocol specification that this PICS proforma supports.
• EN 300 443-1 - The basic call/bearer control specification for basic point-to-point connections.
• EN 300 771-1 - The basic call/bearer control specification for point-to-multipoint connections.
• ISO/IEC 9646-1 - The general conformance testing framework used as a basis for the methodology.
• ISO/IEC 9646-7 - The part that covers Implementation Conformance Statements.
• ETS 300 406 - The ETSI methodology reference for protocol and profile conformance test specifications.
• Part 3, Part 4, Part 5 and Part 6 of the EN 301 068 series - The companion documents that provide test suite structure, abstract test suites and PIXIT material for user and network cases.

What does the SIST EN 301 068-2 V1.1.3:2003 document contain?

Annex A is a structured questionnaire with identification fields for the IUT, SUT, supplier, client and PICS contact person. It also contains a global statement of conformance, role selection, and separate user and network sections. The tables cover major capabilities, subsidiary capabilities, and information elements in CONNECT and SETUP messages, using status, reference and support columns plus comments and prerequisite rules.

The document also includes guidance on completing the form, conventions for the table entries, and notes that explain how specific capability choices affect local tagging and traffic parameter handling. In effect, it is a completed-declaration template for design review, testing preparation and conformance assessment.

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; ATM transfer capability and traffic parameter indication; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 068-2 Version 1.1.3SIST EN 301 068-2 V1.1.3:2003en01-december-2003SIST EN 301 068-2 V1.1.3:2003SLOVENSKI
STANDARD
ETSIEN301068-2V1.1.3(2000-05)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;ATMtransfercapabilityandtrafficparameterindication;Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecificationSIST EN 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(2000-05)2ReferenceDEN/SPS-05081-2KeywordsATM,B-ISDN,DSS2,layer3,basic,PICSETSI650RoutedesLuciolesF-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 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(2000-05)3ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.53Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.64Conformance.7AnnexA(normative):PICSproformaforEN301068-1.8A.1GuidanceforcompletingthePICSproforma.8A.1.1Purposesandstructure.8A.1.2Abbreviationsandconventions.9A.1.3InstructionsforcompletingthePICSproforma.11A.2Identificationoftheimplementation.11A.2.1Dateofthestatement.11A.2.2Implementationundertestidentification.11A.2.3Systemundertestidentification.11A.2.4Productsupplier.12A.2.5Client(ifdifferentfromproductsupplier).12A.2.6PICScontactperson.13A.3Identificationoftheprotocol.13A.4Globalstatementofconformance.13A.5Roles.14A.6Userrole.14A.6.1Majorcapabilities.14A.6.2Subsidiarycapabilities.15A.6.3PDUs.15A.6.4PDUparametersreceivedbytheuser.15A.6.5PDUparameterssentbytheuser.16A.6.6Timers.17A.6.7Callstates.17A.7Networkrole.17A.7.1Majorcapabilities.17A.7.2Subsidiarycapabilities.18A.7.3PDUs.18A.7.4PDUparametersreceivedbythenetwork.18A.7.5PDUparameterssentbythenetwork.19A.7.6Timers.20A.7.7Callstates.20Bibliography.21History.22SIST EN 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(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).Thepresentdocumentispart3ofamulti-partENcoveringtheBroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;ATMtransfercapabilityandtrafficparameterindication,asidentifiedbelow:Part1:"Protocolspecification[ITU-TRecommendationsQ.2961.1(1995),Q.2961.2(1997),Q.2961.3(1997),Q.2961.4(1997),modified]";Part2:"ProtocolImplementationConformanceStatement(PICS)proformaspecification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)specificationfortheuser";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationfortheuser";Part5:"TestSuiteandTestPurposes(TSS&TP)specificationforthenetwork";Part6:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthenetwork".Toevaluateconformanceofaparticularimplementation,itisnecessarytohaveastatementofwhichcapabilitiesandoptionshavebeenimplementedforagivenprotocol.SuchastatementiscalledaProtocolImplementationConformanceStatement(PICS).TheProtocolspecification,Part1ofthepresentdocument,extendsthebasiccallcontrolproceduresdefinedinEN300443-1[1]bysupportingtheconnectioncharacteristics(ATMtransfercapabilityandtrafficparameters)indication.NationaltranspositiondatesDateofadoptionofthisEN:28April2000DateoflatestannouncementofthisEN(doa):31July2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31January2001DateofwithdrawalofanyconflictingNationalStandard(dow):31January2001SIST EN 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(2000-05)51ScopeThepresentdocumentprovidestheProtocolImplementationConformanceStatement(PICS)proformafortheBroadbandIntegratedServicesDigitalNetwork(B-ISDN)DigitalSubscriberSignallingSystemNo.two(DSS2)protocolwithconnectioncharacteristicsindicationdefinedinEN301068-1[3]incompliancewiththerelevantrequirements,andinaccordancewiththerelevantguidancegiveninISO/IEC9646-7[5]andETS300406[6].ThesupplierofaprotocolimplementationwhichisclaimedtoconformtoEN301068-1[3]isrequiredtocompleteacopyofthePICSproformaprovidedinannexAofthepresentdocumentandisrequiredtoprovidetheinformationnecessarytoidentifythesupplierandtheimplementation.FurtherENs(orfurtherpartsofthepresentdocument)providethemethodoftestinganddetailedapplicationspecificrequirementstodetermineconformancetothepresentdocument.Theprovisionofthiscapabilityrequiresthesupportoftheprotocolforthebasicpoint-to-pointcall/bearerconnectionsasdefinedinEN300443-1[1]oroftheprotocolforthepoint-to-multipointcall/bearerconnectionsasdefinedinEN300771-1[2].2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ETSIEN300443-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;B-ISDNuser-networkinterfacelayer3specificationforbasiccall/bearercontrol;Part1:Protocolspecification[ITU-TRecommendationQ.2931(1995),modified]".[2]ETSIEN300771-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;B-ISDNuser-networkinterfacelayer3specificationforpoint-to-multipointcall/bearercontrol;Part1:Protocolspecification[ITU-TRecommendationQ.2971(1995),modified]".[3]ETSIEN301068-1(V1.2):"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;ATMtransfercapabilityandtrafficparameterindication;Part1:Protocolspecification[ITU-TRecommendationsQ.2961.1(1995),Q.2961.2(1997),Q.2961.3(1997),Q.2961.4(1997),modified]".[4]ISO/IEC9646-1:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part1:Generalconcepts".[5]ISO/IEC9646-7:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework-Part7:ImplementationConformanceStatements".[6]ETSIETS300406:"MethodsfortestingandSpecification(MTS);Protocolandprofileconformancetestingspecifications;Standardizationmethodology".[7]ITU-TRecommendationI.371:"TrafficcontrolandcongestioncontrolinB-ISDN".SIST EN 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(2000-05)6[8]ITU-TRecommendationQ.2961.6:"AdditionalsignallingproceduresforthesupportoftheSBR2andSBR3ATMtransfercapabilities".[9]ITU-TRecommendationQ.2931:"DigitalSubscriberSignallingSystemNo.2(DSS2)–User-NetworkInterface(UNI)layer3specificationforbasiccall/connectioncontrol".[10]ITU-TRecommendationQ.2961:"DigitalsubscribersignallingsystemNo.2–Additionaltrafficparameters".[11]ITU-TRecommendationQ.2961.1:"Additionalsignallingcapabilitiestosupporttrafficparametersforthetaggingoptionandthesustainablecellrateparameterset".[12]ITU-TRecommendationQ.2961.2:"DigitalsubscribersignallingsystemNo.2-Additionaltrafficparameters:SupportofATMtransfercapabilityinthebroadbandbearercapabilityinformationelement".[13]ITU-TRecommendationQ.2961.3:"Signallingcapabilitiestosupporttrafficparametersfortheavailablebitrate(ABR)ATMtransfercapability".[14]ITU-TRecommendationQ.2961.4:"SignallingcapabilitiestosupporttrafficparametersfortheATMBlockTransfer(ABT)ATMtransfercapability".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thetermsanddefinitionsgiveninEN301068-1[3],ISO/IEC9646-1[4]andISO/IEC9646-7[5]andthefollowingapply:ImplementationConformanceStatement(ICS):statementmadebythesupplierofanimplementationorsystemclaimedtoconformtoagivenspecification,statingwhichcapabilitieshavebeenimplemented.TheICScantakeseveralforms:protocolICS,profileICS,profilespecificICS,informationobjectICS,etc.ICSproforma:document,intheformofaquestionnaire,whichwhencompletedforanimplementationorsystembecomesanICSProtocolICS(PICS):ICSforanimplementationorsystemclaimedtoconformtoagivenprotocolspecification3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ABRAvailableBitRateATCABTATMBlockTransferATCATCATMTransferCapabilityATMAsynchronousTransferModeB-ISDNBroadbandISDNDBRDeterministicBitRateATCDSS2DigitalSubscriberSignallingSystemNo.twoICSImplementationConformanceStatementIUTImplementationUnderTestPDUProtocolDataUnitPICSProtocolImplementationConformanceStatementSBRStatisticalBitRateATCSUTSystemUnderTestVCVirtualConnectionVPVirtualPathVPCVPConnectionSIST EN 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(2000-05)74ConformanceIfitclaimstoconformtothepresentdocument,theactualPICSproformatobefilledinbyasuppliershallbetechnicallyequivalenttothetextofthePICSproformagiveninannexA,andshallpreservethenumbering/namingandorderingoftheproformaitems.APICSwhichconformstothepresentdocumentshallbeaconformingPICSproformacompletedinaccordancewiththeguidanceforcompletiongiveninclauseA.1.SIST EN 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(2000-05)8AnnexA(normative):PICSproformaforEN301068-1Notwithstandingtheprovisionsofthecopyrightclauserelatedtothetextofthepresentdocument,ETSIgrantsthatusersofthepresentdocumentmayfreelyreproducethePICSproformainthisannexsothatitcanbeusedforitsintendedpurposesandmayfurtherpublishthecompletedPICS.A.1GuidanceforcompletingthePICSproformaA.1.1PurposesandstructureThepurposeofthisPICSproformaistoprovideamechanismwherebyasupplierofanimplementationoftherequirementsdefinedinEN301068-1mayprovideinformationabouttheimplementationinastandardizedmanner.ThePICSproformaissubdividedintosubclausesforthefollowingcategoriesofinformation:• instructionsforcompletingthePICSproforma;• identificationoftheimplementation;• identificationoftheprotocol;• globalstatementofconformance;• roles;• userrole:-majorcapabilities;-PDUs;-PDUparameters;-timers;-callstates;• networkrole:-majorcapabilities;-PDUs;-PDUparameters;-timers;-callstates.SIST EN 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(2000-05)9A.1.2AbbreviationsandconventionsThePICSproformacontainedinthisannexiscomprisedofinformationintabularforminaccordancewiththeguidelinespresentedinISO/IEC9646-7.ItemcolumnTheitemcolumncontainsanumberwhichidentifiestheiteminthetable.ItemdescriptioncolumnTheitemdescriptioncolumndescribesinfreetexteachrespectiveitem(e.g.parameters,timers,etc.).Itimplicitlymeans"issupportedbytheimplementation?".StatuscolumnThefollowingnotations,definedinISO/IEC9646-7,areusedforthestatuscolumn:m:mandatory-thecapabilityisrequiredtobesupported.o:optional-thecapabilitymaybesupportedornot.n/a:notapplicable-inthegivencontext,itisimpossibletousethecapability.x:prohibited(excluded)-thereisarequirementnottousethiscapabilityinthegivencontext.o.i:qualifiedoptional-formutuallyexclusiveorselectableoptionsfromaset."i"isanintegerwhichidentifiesanuniquegroupofrelatedoptionalitemsandthelogicoftheirselectionwhichisdefinedimmediatelyfollowingthetable.NOTE:Inthecasewhereitemsofthegroupdonotalwaysbelongtothesametable,allo.ishallbedefinedinthelastsubclauseofthePICSproforma,andthetext"whichisdefinedimmediatelyfollowingthetable"shouldbereplacedby"whichisdefinedinthelastsubclauseofthisannex".ci:Conditional-therequirementonthecapability("m","o","x"or"n/a")dependsonthesupportofotheroptionalorconditionalitems."i"isanintegeridentifyinganuniqueconditionalstatusexpressionwhichisdefinedimmediatelyfollowingthetable.c:o:conditionaloptional-thecapabilitymaybesupportedornotifthehierarchicallyprecedingcapabilityissupported.c:m:conditionalmandatory-thecapabilityisrequiredtobesupportedifthehierarchicallyprecedingcapabilityissupported.ReferencecolumnThereferencecolumnmakesreferencetoEN301068-1,exceptwhereexplicitlystatedotherwise.WheneverreferenceismadedirectlytoITU-TRecommendationQ.2961.x,itmeansasendorsedbyEN301068-1.SupportcolumnThesupportcolumnshallbefilledinbythesupplieroftheimplementation.Thefollowingcommonnotations,definedinISO/IEC9646-7,areusedforthesupportcolumn:Yory:supportedbytheimplementation.Norn:notsupportedbytheimplementation.N/A,n/aor-:noanswerrequired(allowedonlyifthestatusisn/a,directlyorafterevaluationofaconditionalstatus).SIST EN 301 068-2 V1.1.3:2003

ETSIETSIEN301068-2V1.1.3(2000-05)10IfthisPICSproformaiscompletedinordertodescribeamultiple-profilesupportinasystem,itisnecessarytobeabletoanswerthatacapabilityissupportedforoneprofileandnotsupportedforanother.Inthatcase,thesuppliershallentertheuniquereferencetoaconditionalexpression,precededby"?"(e.g.?3).Thisexpressionshallbegiveninthespaceforcommentsprovidedatthebottomofthetable.ItusespredicatesdefinedintheSCS,eachofwhichreferstoasingleprofileandwhichtakesthevalueTRUEifandonlyifthatprofileistobeused.EXAMPLE:?3:IFprof1THENYELSEN.Itisalsopossibletoprovideacommenttoananswerinthespaceprovidedatthebottomofthetable.NOTE:AsstatedinISO/IEC9646-7,supportforareceivedPDUrequirestheabilitytoparseallvalidparametersofthatPDU.SupportingaPDUwhilehavingnoabilitytoparseavalidparameterisnon-conformant.SupportforaparameteronaPDUmeansthatthesemanticsofthatparameteraresupported.ValuesallowedcolumnThevaluesallowedcolumncontainsthetype,thelist,therange,orthelengthofvaluesallowed.Thefollowingnotationsareused:-rangeofvalues:.example:5.20-listofvalues:,,.,example:2,4,6,8,9example:'1101'B,'1011'B,'1111'Bexample:'0A'H,'34'H,'2F'H-listofnamedvalues:(),(),.,(example:reject(1),accept(2)-length:size(.)example:size(1.8)ValuessupportedcolumnThevaluessupportedcolumnshallbefilledinbythesupplieroftheimplementation.Inthiscolumn,thevaluesortherangesofvaluessupportedbytheimplementationshallbeindicated.ReferencestoitemsForeachpossibleitemanswer(answerinthesupportcolumn)withinthePICSproformaauniquereferenceexists,used,forexample,intheconditionalexpressions.Itisdefinedasthetableidentifier,followedbyasoliduscharacter"/",followedbytheitemnumberinthetable.Ifthereismorethanonesupportcolumninatable,thecolumnsarediscriminatedbyletters(a,b,etc.),respectively.EXAMPLE1:A.5/4isthereferencetotheanswerofitem4intableA.5.EXAMPLE2:A.6/3bisthereferencetothesecondanswer(i.e.inthesecondsupportcolumn)ofitem3intableA.6.PrerequisitelineAprerequisitelinetakestheform:Prerequisite:.Aprerequisitelineafteraclauseortabletitleindicatesthatthewholeclauseorth
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