SIST EN 301 174-1 V1.1.3:2005

• Abstract:

  This European Standard (EN) enables network and user implementations to support the Frame Relay bearer service. This EN forms an endorsement of ITU-T Recommendation Q.2933

• 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 301 174-1 V1.1.3 (1998-10) - Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Signalling specification for frame relay service; Part 1: Protocol specification [ITU-T Recommendation Q.2933 (1996), modified]

SIST EN 301 174-1 V1.1.3:2005 is the Slovenian adoption of an ETSI European Standard for B-ISDN Frame Relaying bearer service signalling. It specifies the DSS2 protocol procedures for establishing, maintaining and clearing frame relay connections at the user-network interface, and it is an endorsed, modified version of ITU-T Recommendation Q.2933. It is intended for network and user implementations that need frame relay signalling in a B-ISDN environment.

What does SIST EN 301 174-1 V1.1.3:2005 specify?

SIST EN 301 174-1 V1.1.3:2005 specifies the stage 3 signalling and switching aspects of the pan-European B-ISDN Frame Relaying bearer service. In practice, that means the document focuses on protocol behaviour, not the user-facing service description or the higher-level functional architecture.

The scope covers service at the T reference point or at a coincident S and T reference point, and it also covers the T reference point when the service is provided through a private ISDN. It excludes additional protocol requirements for delivery through a telecommunications network that is not a B-ISDN.

The standard is part 1 of a multi-part series. The foreword lists the related parts as follows:

Part	What it covers
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

What are the key requirements of SIST EN 301 174-1 V1.1.3:2005?

SIST EN 301 174-1 V1.1.3:2005 defines how frame relay connections are set up, maintained and released using DSS2. It builds on ITU-T Recommendation Q.2931 as modified by EN 300 443-1, and it only adds the extensions needed for frame relay bearer service.

A few points matter most in practice:

• The standard covers single step call control only. A user or network implementation is expected to support one virtual connection carrying one frame relay connection.
• It does not support multiple frame relay switched virtual connections over a single broadband virtual channel connection. That limits how much multiplexing an implementation can claim under this part.
• It does not cover negotiation or modification/renegotiation of traffic parameters. If a product needs dynamic traffic parameter handling, that capability is outside this document.
• Where the procedures, messages or information elements differ from the base signalling specification, this document states the differences explicitly. Where no enhancement is needed, it points back to Q.2931 as modified by EN 300 443-1.
• The standard allows access to a frame handler in a B-ISDN, so it is useful for implementations that terminate or interwork frame relay service rather than only transport it.
• The endorsement notice replaces clause 1 and clause 2 of the underlying recommendation text, and it removes subclauses 8.3.5 and 8.3.6 from that base text.
• The text also updates references throughout the recommendation to ETSI-modified companion standards such as EN 301 068-1 and ETS 300 661-1 to 668-1.

What terms does SIST EN 301 174-1 V1.1.3:2005 define?

B-ISDN means Broadband Integrated Services Digital Network, the broadband ISDN environment for which this signalling applies.

DSS2 means Digital Subscriber Signalling System No. two, the signalling protocol family used at the user-network interface.

Frame Relaying bearer service is the service this standard signals for: it supports frame relay connections over B-ISDN.

T reference point is the interface point named in the scope where the service is provided to the user.

Coincident S and T reference point is the case where the S and T reference points are treated as the same interface point.

Stage 3 is the protocol stage that defines signalling system protocols and switching functions needed to implement the service.

Who uses SIST EN 301 174-1 V1.1.3:2005?

SIST EN 301 174-1 V1.1.3:2005 is used by telecom network engineers, equipment vendors and systems integrators designing B-ISDN user or network implementations. It is also relevant to test and conformance teams because the series includes PICS, TSS&TP, ATS and PIXIT material for both user and network testing.

Quality managers and buyers can use it to check whether a product claims support for frame relay bearer service under DSS2, and to understand the limits of that support, especially the restrictions on virtual connections and traffic parameter negotiation.

What changed in SIST EN 301 174-1 V1.1.3:2005 from the previous edition?

SIST EN 301 174-1 V1.1.3:2005 is an endorsement of ITU-T Recommendation Q.2933 with ETSI modifications. The endorsement notice states that clause 1 and clause 2 are replaced, new or modified text is marked with sidebars and other highlights, references are updated throughout the text to modified ETSI documents, and subclauses 8.3.5 and 8.3.6 are deleted.

Which standards are used with SIST EN 301 174-1 V1.1.3:2005?

The document points to EN 300 443-1 for the B-ISDN user-network interface layer 3 base for basic call and bearer control. It points to EN 301 068-1 for connection characteristics and ATM transfer capability / traffic parameter indication.

It also uses the ETSI-modified supplementary service specifications ETS 300 661-1 through ETS 300 668-1 for DDI, MSN, CLIP, CLIR, COLP, COLR, SUB and UUS. These companion standards supply the related DSS2 signalling rules that this frame relay specification references.

What does the SIST EN 301 174-1 V1.1.3:2005 document contain?

The document contains the endorsed protocol specification text for frame relay bearer service signalling, together with the formal modifications to the base ITU-T recommendation. It includes the scope, the reference rules, and the reference replacements that map ITU-T documents to their ETSI-modified equivalents.

It also contains the explanatory endorsement notice that shows how the underlying recommendation is changed for European use. The history page records the publication path of versions V1.1.1, V1.1.2 and V1.1.3.

For implementation work, the most useful parts are the procedural descriptions of call setup, maintenance and clearing, plus the explicit limits on supported connection arrangements and traffic parameter handling.

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; Signalling specification for frame relay service; Part 1: Protocol specification [ITU-T Recommendation Q.2933 (2004), modified]33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 174-1 Version 1.1.3SIST EN 301 174-1 V1.1.3:2005en01-januar-2005SIST EN 301 174-1 V1.1.3:2005SLOVENSKI
STANDARD
EN 301 174-1 V1.1.3 (1998-10)European Standard (Telecommunications series)Broadband Integrated Services Digital Network (B-ISDN);Digital Subscriber Signalling System No. two (DSS2) protocol;Signalling specification for frame relay service;Part 1: Protocol specification[ITU-T Recommendation Q.2933 (1996), modified]SIST EN 301 174-1 V1.1.3:2005

ETSIEN 301 174-1 V1.1.3 (1998-10)2ReferenceDEN/SPS-05142-1 (avc90ie0.PDF)KeywordsB-ISDN, DSS2, frame relay, ISDN, broadbandETSIPostal 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]://www.etsi.orgCopyright 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 1998.All rights reserved.SIST EN 301 174-1 V1.1.3:2005

ETSIEN 301 174-1 V1.1.3 (1998-10)3Intellectual 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 1 of a multi-part standard covering the signalling specification for frame relay service forthe Digital Subscriber Signalling System No. two (DSS2) protocol as described below: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:At the time of publication of the present document, the final structure of the parts containing the testspecifications was still under study.In accordance with CCITT Recommendation I.130, the following three level structure is used to describe thetelecommunication services as provided by European public telecommunications operators under the pan-EuropeanISDN:-Stage 1: is an overall service description, from the user's standpoint;-Stage 2: identifies the functional capabilities and information flows needed to support the service described instage 1; and-Stage 3: defines the signalling system protocols and switching functions needed to implement the servicedescribed in stage 1.The present document details the stage 3 aspects (DSS2 protocol) needed to support the frame relay service.SIST EN 301 174-1 V1.1.3:2005

ETSIEN 301 174-1 V1.1.3 (1998-10)4National transposition datesDate of adoption of this EN: 30 October 1998Date of latest announcement of this EN (doa): 31 January 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e): 31 July 1999Date of withdrawal of any conflicting National Standard (dow): 31 July 1999Endorsement noticeThe elements of ITU-T Recommendation Q.2933 (1996) apply, with the following modifications:NOTE: New or modified text is indicated using sidebars. In addition, underlining and/or strikeout are used tohighlight detailed modifications where necessary.Page 1, clause 1Replace clause 1 by:SIST EN 301 174-1 V1.1.3:2005

ETSIEN 301 174-1 V1.1.3 (1998-10)51ScopeThis first part of EN 301 174 specifies the stage three of the pan-European Broadband Integrated Services DigitalNetwork (B-ISDN) Frame Relaying bearer service as provided by European public telecommunications operators at theT reference point or coincident S and T reference point (as defined in CCITT Recommendation I.413 [4]) by means ofthe Broadband Digital Subscriber Signalling System No. two (DSS2). Stage three identifies the protocol procedures andswitching functions needed to support a telecommunications service (see CCITT Recommendation I.130 [3]).In addition, the present document specifies the protocol requirements at the T reference point where the service isprovided to the user via a private ISDN.The present document does not specify the additional protocol requirements where the service is provided to the user viaa telecommunications network that is not a B-ISDN.The present document specifies the procedures for the establishing, maintaining and clearing of Broadband-IntegratedServices Digital Network (B-ISDN) Frame Relaying connections at the User-network interface. The capability specifiedin the present document also allows the user of the Frame Relaying bearer service to access a frame handler in aB-ISDN.The present document specifies
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