SIST EN 301 068-2 V1.2.1:2003

• Abstract:

  Revised PICS for revised protocol

• Status: Published
• Publication Date: 31-Oct-2003
• 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-Nov-2003
• Due Date: 01-Nov-2003
• Completion Date: 01-Nov-2003
• Ref Project: ETSI EN 301 068-2 V1.2.1 (2002-04) - 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

Overview

SIST EN 301 068-2 V1.2.1:2003 specifies the Protocol Implementation Conformance Statement (PICS) proforma for the Broadband Integrated Services Digital Network (B-ISDN) Digital Subscriber Signalling System No. two (DSS2) protocol. This standard addresses the connection characteristics, ATM transfer capability, and traffic parameter indication at the user-network interface of B-ISDN. As a revision of the earlier protocol, it provides clear, standardized methods for suppliers to declare the capabilities and options implemented in their products, ensuring uniformity and interoperability across vendors and solutions in telecommunications networks.

The proforma outlined in this document is compliant with the requirements and guidance established in ISO/IEC 9646-7 and ETS 300 406 concerning conformance and testing methodology.

Key Topics

• Protocol Implementation Conformance Statement (PICS):
  The standard defines a structured proforma for suppliers to specify which protocol capabilities and options are supported in a particular implementation.

• B-ISDN DSS2 Protocol:
  Focuses on the signalling aspects for establishing, managing, and releasing ATM-based connections in broadband ISDN environments, covering both point-to-point and point-to-multipoint scenarios.

• ATM Transfer Capabilities:
  Details mechanisms for declaring support for various ATM bearer capabilities and associated traffic parameters such as ABR (Available Bit Rate), ABT (ATM Block Transfer), SBR (Statistical Bit Rate), and DBR (Deterministic Bit Rate).

• Traffic Parameter Indication:
  Outlines how implementers should indicate and negotiate traffic parameters like Peak Cell Rate (PCR), Minimum Cell Rate (MCR), and others critical to proper ATM network functioning.

• User and Network Roles:
  The PICS proforma includes dedicated sections for implementations fulfilling either the user or network role, specifying required and optional capabilities, protocol data units (PDUs), and traffic management features.

• Conformance and Testing:
  Provides a standardized format for suppliers to document conformity, which facilitates harmonized testing and validation processes according to international standards.

Applications

Implementing SIST EN 301 068-2 V1.2.1:2003 adds significant value for:

• Equipment Suppliers:
  Demonstrating compliance of network products (e.g., ATM switches, DSLAMs, B-ISDN terminals) regarding protocol implementation details. This eliminates ambiguities when integrating multi-vendor equipment.

• Telecommunications Operators:
  Ensuring network devices meet required standards for robust service delivery, quality of service (QoS), and interoperability, especially in ATM-based broadband networks.

• Test Labs and Certification Bodies:
  Using the standardized PICS structure for consistent product testing, evaluation, and certification, which is crucial for network reliability and service assurance.

• Procurement and Standards Auditing:
  Enabling procurement teams to specify conformance requirements and audit compliance efficiently, minimizing risk and ensuring long-term scalability.

Related Standards

For full understanding and effective application, refer to the following key standards related to B-ISDN DSS2 and conformance testing:

• EN 301 068-1: Protocol specification for DSS2 connection characteristics, ATM transfer capability, and traffic parameter indication.
• EN 300 443-1: Base protocol specification for B-ISDN user-network interface, layer 3 (basic call/bearer control).
• EN 300 771-1: DSS2 protocol specifications for point-to-multipoint bearer control.
• ISO/IEC 9646-7: OSI conformance testing methodology, specifically covering implementation conformance statements.
• ETS 300 406: Methods for protocol and profile conformance test specifications.
• ITU-T Recommendations Q.2931, Q.2961.x: Internationally recognized protocols related to DSS2 and ATM bearer services.

Keywords: Broadband ISDN, DSS2 protocol, ATM transfer capability, traffic parameter indication, protocol conformance, PICS, standards compliance, telecommunications, interoperability, B-ISDN testing.

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 1.2.1SIST EN 301 068-2 V1.2.1:2003en01-november-2003SIST EN 301 068-2 V1.2.1:2003SLOVENSKI
STANDARD
ETSIEN301068-2V1.2.1(2002-04)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;ATMtransfercapabilityandtrafficparameterindication;Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecificationSIST EN 301 068-2 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)2ReferenceREN/SPAN-130203-2KeywordsATM,B-ISDN,DSS2,ISDN,layer3,PICS,UNIETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://portal.etsi.org/tb/status/status.aspIfyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2002.Allrightsreserved.DECTTM,PLUGTESTSTMandUMTSTMareTradeMarksofETSIregisteredforthebenefitofitsMembers.TIPHONTMandtheTIPHONlogoareTradeMarkscurrentlybeingregisteredbyETSIforthebenefitofitsMembers.3GPPTMisaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners.SIST EN 301 068-2 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)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.20AnnexB(informative):Bibliography.21History.22SIST EN 301 068-2 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://webapp.etsi.org/IPR/home.asp).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeServicesandProtocolsforAdvancedNetworks(SPAN).Thepresentdocumentispart2ofamulti-partdeliverablecoveringtheDigitalSubscriberSignallingSystemNo.two(DSS2)protocolspecificationfortheBroadbandIntegratedServicesDigitalNetwork(B-ISDN)ATMtransfercapabilityandtrafficparameterindication,asidentifiedbelow:Part1:"Protocolspecification[ITU-TRecommendationQ.2961.1(1995),Q.2961.2(1997),Q.2961.3(1997),Q.2961.4(1997),Q.2961.6(1998),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".Toevaluateconformanceofaparticularimplementation,itisnecessarytohaveastatementofwhichcapabilitiesandoptionshavebeenimplementedforagivenprotocol.SuchastatementiscalledaProtocolImplementationConformanceStatement(PICS).TheProtocolspecification,part1ofthepresentdocument,extendsthebasiccallcontrolproceduresdefinedinEN300443-1[1]bysupportingtheconnectioncharacteristics(ATMtransfercapabilityandtrafficparameters)indication.NationaltranspositiondatesDateofadoptionofthisEN:26April2002DateoflatestannouncementofthisEN(doa):31July2002DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31January2003DateofwithdrawalofanyconflictingNationalStandard(dow):31January2003SIST EN 301 068-2 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)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(identifiedbydateofpublicationand/oreditionnumberorversionnumber)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[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(V1.3.1):"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".[8]ITU-TRecommendationQ.2961.6:"DigitalsubscribersignallingsystemNo.2-Additionaltrafficparameters:AdditionalsignallingproceduresforthesupportoftheSBR2andSBR3ATMtransfercapabilities".SIST EN 301 068-2 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)6[9]ITU-TRecommendationQ.2931:"DigitalSubscriberSignallingSystemNo.2-User-NetworkInterface(UNI)layer3specificationforbasiccall/connectioncontrol".[10]Void.[11]ITU-TRecommendationQ.2961.1:"DigitalsubscribersignallingsystemNo.2-Additionaltrafficparameters:Additionalsignallingcapabilitiestosupporttrafficparametersforthetaggingoptionandthesustainablecellrateparameterset".[12]ITU-TRecommendationQ.2961.2:"DigitalsubscribersignallingsystemNo.2-Additionaltrafficparameters:SupportofATMtransfercapabilityinthebroadbandbearercapabilityinformationelement".[13]ITU-TRecommendationQ.2961.3:"DigitalsubscribersignallingsystemNo.2-Additionaltrafficparameters:Signallingcapabilitiestosupporttrafficparametersfortheavailablebitrate(ABR)ATMtransfercapability".[14]ITU-TRecommendationQ.2961.4:"DigitalsubscribersignallingsystemNo.2-Additionaltrafficparameters:SignallingcapabilitiestosupporttrafficparametersfortheATMBlockTransfer(ABT)ATMtransfercapability".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thetermsanddefinitionsgiveninEN301068-1[3],ISO/IEC9646-1[4]andISO/IEC9646-7[5]andthefollowingapply:ImplementationConformanceStatement(ICS):statementmadebythesupplierofanimplementationorsystemclaimedtoconformtoagivenspecification,statingwhichcapabilitieshavebeenimplementedNOTE:TheICScantakeseveralforms:protocolICS,profileICS,profilespecificICS,informationobjectICS,etc.ICSproforma:document,intheformofaquestionnaire,whichwhencompletedforanimplementationorsystembecomesanICSProtocolICS(PICS):ICSforanimplementationorsystemclaimedtoconformtoagivenprotocolspecification3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ABRAvailableBitRateATCABTATMBlockTransferATCATCATMTransferCapabilityATMAsynchronousTransferModeB-ISDNBroadbandISDNDBRDeterministicBitRateATCDSS2DigitalSubscriberSignallingSystemNo.twoICSImplementationConformanceStatementIUTImplementationUnderTestPDUProtocolDataUnitPICSProtocolImplementationConformanceStatementSBRStatisticalBitRateATCSUTSystemUnderTestVPVirtualPathSIST EN 301 068-2 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)74ConformanceIfitclaimstoconformtothepresentdocument,theactualPICSproformatobefilledinbyasuppliershallbetechnicallyequivalenttothetextofthePICSproformagiveninannexA,andshallpreservethenumbering/namingandorderingoftheproformaitems.APICSwhichconformstothepresentdocumentshallbeaconformingPICSproformacompletedinaccordancewiththeguidanceforcompletiongiveninclauseA.1.SIST EN 301 068-2 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)8AnnexA(normative):PICSproformaforEN301068-1Notwithstandingtheprovisionsofthecopyrightclauserelatedtothetextofthepresentdocument,ETSIgrantsthatusersofthepresentdocumentmayfreelyreproducethePICSproformainthisannexsothatitcanbeusedforitsintendedpurposesandmayfurtherpublishthecompletedPICS.A.1GuidanceforcompletingthePICSproformaA.1.1PurposesandstructureThepurposeofthisPICSproformaistoprovideamechanismwherebyasupplierofanimplementationoftherequirementsdefinedinEN301068-1mayprovideinformationabouttheimplementationinastandardizedmanner.ThePICSproformaissubdividedintoclausesforthefollowingcategoriesofinformation:• instructionsforcompletingthePICSproforma;• identificationoftheimplementation;• identificationoftheprotocol;• globalstatementofconformance;• roles;• userrole:-majorcapabilities;-PDUs;-PDUparameters;-timers;-callstates;• networkrole:-majorcapabilities;-PDUs;-PDUparameters;-timers;-callstates.SIST EN 301 068-2 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)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"isanintegerwhichidentifiesauniquegroupofrelatedoptionalitemsandthelogicoftheirselectionwhichisdefinedimmediatelyfollowingthetable.NOTE:Inthecasewhereitemsofthegroupdonotalwaysbelongtothesametable,allo.ishallbedefinedinthelastclauseofthePICSproforma,andthetext"whichisdefinedimmediatelyfollowingthetable"shouldbereplacedby"whichisdefinedinthelastclauseofthisannex".ci:Conditional-therequirementonthecapability("m","o","x"or"n/a")dependsonthesupportofotheroptionalorconditionalitems."i"isanintegeridentifyingauniqueconditionalstatusexpressionwhichisdefinedimmediatelyfollowingthetable.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 V1.2.1:2003

ETSIETSIEN301068-2V1.2.1(2002-04)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
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