SIST EN 301 276-2 V1.1.3:2005

• Abstract:

  Ratification of ITU-T Recommendation to provide a European Specification Reference documents: ITU-T Q.2963.2

• 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 301 276-2 V1.1.3 (1999-03) - Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Modification procedures for sustainable cell rate parameters; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification

SIST EN 301 276-2 V1.1.3:2005 is an ETSI European Standard published by SIST for the Broadband Integrated Services Digital Network (B-ISDN) DSS2 protocol. It gives the Protocol Implementation Conformance Statement (PICS) proforma for the modification of sustainable cell rate parameters in B-ISDN connections. The document is part 2 of the EN 301 276 series and is based on ITU-T Recommendation Q.2963.2.

What does SIST EN 301 276-2 V1.1.3:2005 specify?

SIST EN 301 276-2 V1.1.3:2005 specifies the PICS proforma used to declare which parts of the EN 301 276-1 protocol an implementation supports. In practice, it is the form a supplier completes to describe a DSS2 implementation for sustainable cell rate parameter modification, so that conformance can be assessed consistently.

The scope is limited to the conformance statement itself. The document points to other parts of the family for the protocol specification and for testing methods, and it also relies on the basic B-ISDN call/bearer control support defined in EN 300 443-1.

Annex	What it covers
Annex A	Normative PICS proforma for EN 301 276-1, including guidance, identification fields, capability tables, and message/PDU items

The main body contains the scope, references, definitions, symbols and abbreviations, and conformance clauses. Clause 5 and Annex A are the core of the document for anyone preparing or checking a PICS.

What are the key requirements of SIST EN 301 276-2 V1.1.3:2005?

Completing the PICS proforma

Annex A requires the supplier to complete the proforma in the prescribed form and to use the status and support notations from ISO/IEC 9646-7. This matters because the completed PICS becomes the formal record of what the implementation supports and what it does not.

Identifying the implementation

Clause A.2 requires identification of the date of the statement, the Implementation Under Test (IUT), the System Under Test (SUT), the product supplier, an optional client if different, and a contact person. In practice, this ties the answers to one specific product build and installation.

Using the table structure correctly

Clause A.4 says the IUT is a layer 3 implementation on top of one physical interface, and separate PICSs are needed if the SUT has more than one interface or configuration. It also explains how received PDU parameters are treated, including the distinction between transparent and non-transparent information elements.

Declaring overall conformance

Clause A.5 asks for a single yes/no statement on whether all mandatory capabilities are implemented. A "No" answer means the implementation is not conformant, so any missing mandatory items must be identified and explained.

Reporting the main capabilities

Clause A.7 replaces the major capabilities table from EN 301 003-2 with entries for increasing and decreasing the PCR, the SCR, and the MBS. For a buyer or test engineer, this shows whether the implementation can handle the traffic descriptor changes that the protocol is meant to support.

Declaring message and parameter support

Clause A.8 covers received and transmitted messages, including MODIFY ACKNOWLEDGEMENT, MODIFY REJECT, MODIFY REQUEST, and CONNECTION AVAILABLE. Clause A.8.2.1 also asks about Modify Request PDU parameters such as Protocol Discriminator, Call reference, ATM traffic descriptor, and Notification indicator.

Handling ATM traffic descriptor parameters

The note in A.8.2.1 states that all 12 ATM traffic descriptor parameters are optional, but at least one shall be present. In practice, this means the PICS must show which traffic descriptor information the implementation can process, not just whether it can carry the message.

What terms does SIST EN 301 276-2 V1.1.3:2005 define?

Protocol Implementation Conformance Statement (PICS) is the completed statement that records which functions and options an implementation supports.

Implementation Under Test (IUT) is the protocol implementation being described in the PICS.

System Under Test (SUT) is the system that contains the IUT and its related hardware and software configuration.

Digital Subscriber Signalling System No. two (DSS2) is the signalling protocol used here for B-ISDN connection control.

Broadband Integrated Services Digital Network (B-ISDN) is the broadband network context in which the signalling and traffic parameters are used.

PDU means protocol data unit, the message format whose received and transmitted items are listed in Annex A.

PCR, SCR and MBS are the traffic-related capabilities checked in the major capabilities table: peak cell rate, sustainable cell rate, and maximum burst size.

Who uses SIST EN 301 276-2 V1.1.3:2005?

SIST EN 301 276-2 V1.1.3:2005 is used by protocol suppliers, product engineers, and conformance test teams working on B-ISDN DSS2 implementations. It is also used by quality managers and buyers who need a completed PICS to compare support claims across implementations. The document is especially relevant when a supplier claims conformance to EN 301 276-1 and must document the supported capabilities and message handling behavior.

Which standards are used with SIST EN 301 276-2 V1.1.3:2005?

Reference	Contribution
EN 301 276-1	The protocol specification that this PICS proforma applies to
EN 300 443-1	The basic B-ISDN call/bearer control foundation required for the service
EN 301 003-1	Related protocol specification for peak cell rate modification
EN 301 003-2	Source for the earlier PICS structure, roles, and supporting tables
ISO/IEC 9646-7	Conformance testing framework used for the PICS notation and table conventions
ITU-T Recommendation Q.2963.1	Underlying recommendation for peak cell rate modification
ITU-T Recommendation Q.2963.2	Underlying recommendation for sustainable cell rate parameter modification

What does the SIST EN 301 276-2 V1.1.3:2005 document contain?

Annex A contains the full PICS proforma, starting with guidance on how to complete it and then moving to implementation identification fields. It also includes the conformance statement, the major capabilities table, and the tables for received and transmitted messages and received Modify Request PDU parameters. The document is structured as a questionnaire for conformance declaration and testing support, rather than as a protocol behavior specification.

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; Modification procedures for sustainable cell rate parameters; 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 301 276-2 Version 1.1.3SIST EN 301 276-2 V1.1.3:2005en01-januar-2005SIST EN 301 276-2 V1.1.3:2005SLOVENSKI
STANDARD
EN 301 276-2 V1.1.3 (1999-03)European Standard (Telecommunications series)Broadband Integrated Services Digital Network (B-ISDN);Digital Subscriber Signalling System No. two (DSS2) protocol;Connection characteristics;Modification procedures for sustainable cell rate parameters;Part 2: Protocol Implementation ConformanceStatement (PICS) proforma specificationSIST EN 301 276-2 V1.1.3:2005

ETSIEN 301 276-2 V1.1.3 (1999-03)2ReferenceDEN/SPS-05147-2 (btci0ie0.PDF)KeywordsISDN, broadband, B-ISDN, DSS2, PICSETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: [phone]
Fax: [phone]Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/[e-mail] copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: [e-mail] NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1999.All rights reserved.SIST EN 301 276-2 V1.1.3:2005

ETSIEN 301 276-2 V1.1.3 (1999-03)3ContentsIntellectual Property Rights.4Foreword.41Scope.52References.53Definitions.64Symbols and abbreviations.65Conformance.6Annex A (normative):PICS proforma for EN 301 276-1.7A.1Guidance for completing the PICS proforma.7A.1.1Purposes and structure.7A.1.2Abbreviations and conventions.7A.1.3Instructions for completing the PICS proforma.9A.2Identification of the implementation.10A.2.1Date of the statement.10A.2.2Implementation Under Test (IUT) identification.10A.2.3System Under Test (SUT) identification.10A.2.4Product supplier.10A.2.5Client (if different from product supplier).11A.2.6PICS contact person.11A.3Identification of the protocol to which this PICS proforma applies.12A.4The PICS proforma tables.12A.4.1Correspondence to physical interface.12A.4.2Structure of the tables.12A.4.3Support for received PDU parameters.12A.5Global statement of conformance.13A.6Roles.13A.7Major Capabilities.13A.8Requesting entity protocol data units.14A.8.1Messages received.14A.8.2Messages transmitted.14A.8.2.1Responding entity protocol data unit parameters received.14Bibliography.15History.16SIST EN 301 276-2 V1.1.3:2005

ETSIEN 301 276-2 V1.1.3 (1999-03)4Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on theETSI Web server (http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical Committee SignallingProtocols and Switching (SPS).The present document is part 2 of a multi-part standard covering the Digital Subscriber Signalling System No. two(DSS2) protocol; Connection characteristics; Modification procedures for sustainable cell rate parameters, as describedbelow:Part 1:"Protocol specification";Part 2:"Protocol Implementation Conformance Statement (PICS) proforma specification";Part 3:"Test Suite Structure and Test Purposes (TSS&TP) specification for the user";Part 4:"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)proforma specification for the user";Part 5:"Test Suite Structure and Test Purposes (TSS&TP) specification for the network";Part 6:"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)proforma specification for the network".NOTE:The final structure of the parts containing the test specifications is currently under study.To evaluate conformance of a particular implementation, it is necessary to have a statement of which capabilities andoptions have been implemented for a given Open Systems Interconnection (OSI) protocol. Such a statement is called aProtocol Implementation Conformance Statement (PICS). The Protocol Specification of the present document, extendsthe Connection Modification procedures in EN 301 003-1 by supporting the modification of additional ATM trafficdescriptors. This PICS provides additional statements of conformance to EN 301 003-2. National transposition datesDate of adoption of this EN:5 March 1999Date of latest announcement of this EN (doa):30 June 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e):31 December 1999Date of withdrawal of any conflicting National Standard (dow):31 December 1999SIST EN 301 276-2 V1.1.3:2005

ETSIEN 301 276-2 V1.1.3 (1999-03)51ScopeThe present document provides the Protocol Interface Conformance Statement (PICS) proforma for the signallingprotocol for ATM traffic descriptor modification for the Broadband-Integrated Services Digital Network (B-ISDN) bymeans of the Digital Subscriber Signalling System No. two (DSS 2) as specified in EN 301 276-1 [2]. It is the secondEN in a family of ENs that concern the modification of ATM traffic parameters in B-ISDN connections.The supplier of a protocol implementation which is claimed to conform to EN 301 276-1 [2] is required to complete acopy of the PICS proforma provided in annex A of the present document in addition to the PICS proforma inEN 301 003-2 and is required to provide the information necessary to identify the supplier and the implementation.Further ENs (or further parts of this EN) provide the method of testing and detailed application specific requirements todetermine conformance to this EN.The provision of this service requires the support of the protocol for the basic point-to-point call/bearer connections asdefined in EN 300 443-1 [1].2ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the presentdocument.· References are either specific (identified by date of publication, edition number, version number, etc.) ornon-specific.· For a specific reference, subsequent revisions do not apply.· For a non-specific reference, subsequent revisions do apply.· A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.[1]EN 300 443-1: "Broadband Integrated Services Digital Network (B-ISDN); Digital SubscriberSignalling System No. Two (DSS2) protocol; B-ISDN user-network interface layer 3 specificationfor basic call/bearer control; Part 1: Protocol Specification [ITU-T Recommendation Q.2931,(1995) modified]".[2]EN 301 276-1 (V1.1): "Broadband Integrated Services Digital Network (B-ISDN); DigitalSubscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Modificationprocedures for sustainable cell rate parameters; Part 1: Protocol specification[ITU-T Recommendation Q.2963.2 (1997), modified]".[3]EN 301 003-1: "Broadband Integrated Services Digital Network (B-ISDN); Digital SubscriberSignalling System No. two (DSS2) protocol; Connection characteristics; Peak cell ratemodification by the connection owner; Part 1: Protocol Specification[ITU-T Recommendation Q.2963.1 (1996), modified]".[4]EN 301 003-2: "Broadband Integrated Services Digital Network (B-ISDN); Digital SubscriberSignalling System No. two (DSS2) protocol; Connection characteristics; Peak cell ratemodification by the connection owner; Part 2: Protocol Implementation Conformance Statement(PICS) proforma specification".[5]Void[6]Void.[7]ISO/IEC 9646-7: "Information technology - Open Systems Interconnection - Conformance testingmethodology and framework - Part 7: Implementation Conformance Statements".[8]Void.SIST EN 301 276-2 V1.1.3:2005

ETSIEN 301 276-2 V1.1.3 (1999-03)6[9]ITU-T Recommendation Q.2963.1 (1996): "Digital Subscriber Signalling System No. 2 -Connection modification: Peak cell rate modification by the connection owner".[10]ITU-T Recommendation Q.2963.2 (1997): "Digital Subscriber Signalling Systems No. 2 -Connection modification: Modification procedures for sustainable cell rate parameters".3DefinitionsFor the purposes of the present document, the definitions contained in EN 301 003-2 [4] apply.4Symbols and abbreviationsFor the purposes of the present document, the symbols and abbreviations contained in EN 301 003-2 [4] apply.5ConformanceA PICS proforma that conforms to this PICS proforma specification shall be technically equivalent to annex A, and shallpreserve the numbering and ordering of the items in annex A.A PICS proforma that conforms to this PICS proforma specification shall:a)describe an implementation which conforms to EN 301 276-1 [2];b)be a conforming PICS proforma, which has been completed in accordance with the instructions for completiongiven in clause A.1; andc)include the information necessary to uniquely identify both the supplier and the implementation.SIST EN 301 276-2 V1.1.3:2005

ETSIEN 301 276-2 V1.1.3 (1999-03)7Annex A (normative):PICS proforma for EN 301 276-1Notwithstanding the provisions of the copyright clause related to the text of the present document, ETSI grants that usersof the present document may freely reproduce the PICS proforma in this annex so that it can be used for its intendedpurposes and may further publish the completed PICS.A.1Guidance for completing the PICS proformaA.1.1Purposes and structureThe purpose of this PICS proforma is to provide a mechanism whereby a supplier of an implementation of therequirements defined in EN 301 276-1 [2] may provide information about the implementation in a standardized manner.The PICS proforma is subdivided into subclauses for the following categories of information:-guidance for completing the PICS proforma;-identification of the implementation;-identification of the ;-global statement of conformance;-.A.1.2Abbreviations and conventionsThe PICS proforma contained in this annex is comprised of information in tabular form in accordance with theguidelines presented in ISO/IEC 9646-7 [7].Item columnThe item column contains a number which identifies the item in the table.Item description columnThe item description column describes in free text each respective item (e.g. parameters, timers, etc.). It implicitlymeans "is supported by the implementation?".SIST EN 301 276-2 V1.1.3:2005

ETSIEN 301 276-2 V1.1.3 (1999-03)8Status columnThe following notations, defined in ISO/IEC 9646-7 [7], are used for the status column:mmandatory - the capability is required to be supported.ooptional - the capability may be supported or not.n/anot applicable - in the given context, it is impossible to use the capability.xprohibited (excluded) - there is a requirement not to use this capability in the given context.o.iqualified optional - for mutually exclusive or selectable options from a set. "i" is an integer whichidentifies an unique group of related optional items and the logic of their selection which is definedimmediately following the table.ciconditional - the requirement on the capability ("m", "o", "x" or "n/a") depends on the support ofother optional or conditional items. "i" is an integer identifying an unique conditional statusexpression which is defined immediately following the table.iirrelevant (out-of-scope) - capability outside the scope of the reference specification. No answer isrequested from the supplier.NOTE 1:This use of "i" status is not to be confused with the suffix "i" to the "o" and "c" statuses above.c:oconditional optional - the capability may be supported or not if the hierarchically precedingcapability is supported.c:mconditional mandatory - the capability is required to be supported if the hierarchically precedingcapability is supported.Reference columnThe reference column makes reference to EN 300 443-1 [1], except where explicitly stated otherwise.Support columnThe support column shall be filled in by the supplier of the implementation. The following common notations, defined inISO/IEC 9646-7 [7], are used for the support column:Y or ysupported by the implementation.N or nnot supported by the im
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