SIST EN 301 486-1 V1.1.3:2005

• Abstract:

  Endorsement of Q.2963.3

• 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
• Ref Project: ETSI EN 301 486-1 V1.1.3 (2000-04) - Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM traffic descriptor modification with negotiation by the connection owner; Part 1: Protocol specification [ITU-T Recommendation Q.2963.3, modified]

SIST EN 301 486-1 V1.1.3:2005 is the Slovenian adoption of ETSI EN 301 486-1 for Broadband Integrated Services Digital Network (B-ISDN). It specifies the DSS2 protocol for ATM traffic descriptor modification with negotiation by the connection owner, for use at the TB reference point or coincident SB and TB reference point. In practice, it tells telecom equipment and network teams how an established point-to-point connection can request changes to PCR, SCR and MBS.

What does SIST EN 301 486-1 V1.1.3:2005 specify?

SIST EN 301 486-1 V1.1.3:2005 specifies the signaling protocol for ATM Traffic Descriptor modification with negotiation in B-ISDN using Digital Subscriber Signalling System No. 2 (DSS2). It is the first part of a multi-part EN that also covers conformance and test material for user and network implementations.

The scope focuses on established call or connection modification, not on call establishment. It applies to TB reference points, including coincident SB and TB reference points, and to equipment used as access to the public B-ISDN.

Part	What it covers
Part 1	Protocol specification
Part 2	Protocol Implementation Conformance Statement (PICS) Proforma
Part 3	Test Suite Structure and Test Purpose (TSS&TP) specification for the user
Part 4	Abstract Test Suite (ATS) and partial PIXIT proforma specification for the user
Part 5	Test Suite Structure and Test Purpose (TSS&TP) specification for the network
Part 6	Abstract Test Suite (ATS) and partial PIXIT proforma specification for the network

What are the key requirements of SIST EN 301 486-1 V1.1.3:2005?

SIST EN 301 486-1 V1.1.3:2005 defines how a connection owner can renegotiate ATM traffic characteristics on an already established connection. The practical result is a signaling procedure that changes agreed traffic parameters without tearing down the connection.

Traffic parameters and information elements

The document specifies negotiation for PCR, SCR and MBS. It says the procedure uses either an Alternative ATM traffic descriptor information element or a Minimum acceptable ATM traffic descriptor information element. In practice, implementers need to support both the request format and the network response behavior around these parameters.

Where the procedure applies

The standard applies to connection-oriented telecommunication services based on single point-to-point calls or connections. It excludes emulated N-ISDN services from modification requests, and point-to-multipoint calls or connections are outside its scope. For users, that means the feature is for specific B-ISDN point-to-point bearer contexts, not for every service type.

Relationship to other B-ISDN procedures

The document extends the ATM Traffic Descriptor modification capability specified in EN 301 276-1 and aligns the negotiation concept with EN 301 067-1. It also requires support for the basic point-to-point call/bearer connections defined in EN 300 443-1. In practice, an implementation has to work with the base DSS2 call control procedures before traffic renegotiation can be used.

Access point and deployment conditions

The protocol requirements apply at the TB reference point and at a coincident SB and TB reference point, including when the service is provided through a private B-ISDN. This matters because the same signaling behavior has to be supported at the relevant user-network boundary.

Conformance behavior

The modified text states that the calling user conforms if it supports the traffic parameter negotiation procedure using an Alternative ATM traffic descriptor or a Minimum acceptable ATM traffic descriptor. It also states that the network shall support both, and that requests for emulated N-ISDN services shall be rejected. That gives implementers a clear basis for interoperability checks.

What terms does SIST EN 301 486-1 V1.1.3:2005 define?

B-ISDN is the broadband integrated services digital network environment in which the signaling procedure operates.

DSS2 is the Digital Subscriber Signalling System No. 2 used for layer 3 signaling at the user-network interface.

ATM Traffic Descriptor is the set of ATM traffic parameters that can be modified during negotiation.

PCR means Peak Cell Rate, the traffic rate parameter named in the procedure.

SCR means Sustainable Cell Rate, another negotiated traffic parameter.

MBS means Maximum Burst Size, the burst-related parameter covered by the negotiation.

TB reference point is the interface point where the document applies its protocol requirements.

Who uses SIST EN 301 486-1 V1.1.3:2005?

This standard is used by designers and implementers of B-ISDN and ATM signaling equipment, especially equipment that supports DSS2 traffic negotiation. Network operators use it to specify behavior at the user-network boundary, and test laboratories use it when checking protocol conformance.

It is also relevant to vendors and integrators working on private B-ISDN access, since the scope explicitly includes that deployment case.

Which standards are used with SIST EN 301 486-1 V1.1.3:2005?

SIST EN 301 486-1 V1.1.3:2005 references EN 300 443-1 for the basic point-to-point call/bearer control procedure that underpins the service.

It also relies on EN 301 068-1 for ATM transfer capability and traffic parameter indication, EN 301 067-1 for negotiation during call or connection establishment, EN 301 003-1 for peak cell rate modification by the connection owner, and EN 301 276-1 for sustainable cell rate modification procedures.

The scope also cites ITU-T Recommendation I.413 for the TB reference point and the coincident SB and TB reference point.

What does the SIST EN 301 486-1 V1.1.3:2005 document contain?

SIST EN 301 486-1 V1.1.3:2005 contains the protocol specification text for ATM traffic descriptor modification with negotiation, together with the endorsed modifications to the underlying ITU-T recommendation. It includes the scope, references, and the changed wording for key subclauses such as the service applicability and conformance statements.

The foreword also places this part within a six-part series, where later parts provide PICS, TSS&TP, ATS and PIXIT material for user and network testing. That makes the document useful both for implementation and for conformance work.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.874VSUHPHQMHQR@Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM traffic descriptor modification with negotiation by the connection owner; Part 1: Protocol specification [ITU-T Recommendation Q.2963.3, modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 486-1 Version 1.1.3SIST EN 301 486-1 V1.1.3:2005en01-januar-2005SIST EN 301 486-1 V1.1.3:2005SLOVENSKI
STANDARD
ETSIEN301486-1V1.1.3(2000-04)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;ATMtrafficdescriptormodificationwithnegotiationbytheconnectionowner;Part1:Protocolspecification[ITU-TRecommendationQ.2963.3,modified]SIST EN 301 486-1 V1.1.3:2005

ETSIETSIEN301486-1V1.1.3(2000-04)2ReferenceDEN/SPAN-05202-1KeywordsATM,B-ISDN,broadband,DSS2,layer3,protocol,UNIImportantnoticeThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthisdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.ETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/[e-mail]ETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail] EN 301 486-1 V1.1.3:2005

ETSIETSIEN301486-1V1.1.3(2000-04)3IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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).Thepresentdocumentispart1ofamulti-partENcoveringtheBroadbandIntegratedServicesDigitalNetwork(B-ISDN);DigitalSubscriberSignallingSystemNo.two(DSS2)protocol;Connectioncharacteristics;ATMTrafficDescriptorcharacteristicswithNegotiationbytheConnectionOwner,asdescribedbelow:Part1:"Protocolspecification[ITU-TRecommendationQ.2963.3,modified]";Part2:"ProtocolImplementationConformanceStatement(PICS)Proforma";Part3:"TestSuiteStructureandTestPurpose(TSS&TP)specificationfortheuser";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationfortheuser";Part5:"TestSuiteStructureandTestPurpose(TSS&TP)specificationforthenetwork";Part6:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationforthenetwork".NationaltranspositiondatesDateofadoptionofthisEN:21April2000DateoflatestannouncementofthisEN(doa):31July2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31January2001DateofwithdrawalofanyconflictingNationalStandard(dow):31January2001EndorsementnoticeTheelementofITU-TRecommendationQ.2963.3(1998)apply,withthefollowingmodifications:SIST EN 301 486-1 V1.1.3:2005

ETSIETSIEN301486-1V1.1.3(2000-04)4Clause1Replaceclause1by:1ScopeThisfirstpartofEN301486specifiesthesignallingprotocolforATMTrafficDescriptormodificationwithnegotiationfortheBroadbandIntegratedServicesDigitalNetwork(B-ISDN)attheTBreferencepointorcoincidentSBandTBreferencepoint(asdefinedinRecommendationI.413[1])bymeansoftheDigitalSubscriberSignallingSystemNo.2(DSS2).Thepresentdoc
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