SIST ETS 300 298-1 E2:2003

• Abstract:

  Additional definitions of ATM cell structure and header functions as w ell as ATM layer specifications necessary by revision of ITU-T I.150.

• Status: Published
• Publication Date: 30-Nov-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 ETS 300 298-1 ed.2 (1996-10) - Broadband Integrated Services Digital Network (B-ISDN); Asynchronous Transfer Mode (ATM); Part 1: B-ISDN ATM functional characteristics [ITU-T Recommendation I.150 (1995)]

SIST ETS 300 298-1 E2:2003 is the Slovenian adoption of ETS 300 298-1 Edition 2, published by SIST and based on ETSI work for Broadband Integrated Services Digital Network (B-ISDN) and Asynchronous Transfer Mode (ATM). It specifies the B-ISDN ATM functional characteristics, with additional detail on ATM cell structure, header functions, and ATM layer specifications linked to the revision of ITU-T Recommendation I.150 (1995). It is written for people who design, implement, test, or specify ATM behavior in B-ISDN systems and interfaces.

What does SIST ETS 300 298-1 E2:2003 specify?

SIST ETS 300 298-1 E2:2003 specifies the functional characteristics of ATM in B-ISDN and adds definitions needed for cell structure, header handling, and related ATM layer behavior. The foreword also shows that the ETS is part of a two-part series.

Part	What it covers
Part 1	B-ISDN ATM functional characteristics [ITU-T Recommendation I.150 (1995)]
Part 2	B-ISDN ATM layer specification [ITU-T Recommendation I.361 (1995)]

The standard text is presented as an ETSI European Telecommunication Standard, with endorsement information, transposition dates, and document history in the front matter. In practice, that helps users see both the technical basis and the publication status of the document.

What are the key requirements of SIST ETS 300 298-1 E2:2003?

SIST ETS 300 298-1 E2:2003 focuses on how ATM is characterized for B-ISDN and on a few specific header and control behaviors that affect interoperability.

• It defines the B-ISDN ATM functional characteristics. In practice, this gives implementers the common behavior expected of ATM-based broadband ISDN systems.
• It adds definitions for ATM cell structure and header functions. In practice, designers must treat the cell header consistently when mapping traffic, addressing cells, and handling special cases.
• It includes ATM layer specifications needed by the revision of ITU-T I.150. In practice, this anchors implementation and conformance work to the revised functional model.
• Compared with edition 1, it gives a new specification for the preassigned combination of the routing field in the cell header. In practice, routing-field use is more precisely controlled.
• It specifies how a cell with a reserved Virtual Channel Identifier (VCI) value is conveyed between the end points of the Virtual Path Connection (VPC). In practice, special-purpose cells within a virtual path need defined handling at the VPC boundaries.
• It specifies Generic Flow Control (GFC) protocol procedures across the interface at S and T reference points. In practice, access-side flow-control behavior is defined at those interface points.

What terms does SIST ETS 300 298-1 E2:2003 define?

• B-ISDN - Broadband Integrated Services Digital Network, the broadband ISDN model covered by the standard.
• ATM - Asynchronous Transfer Mode, the cell-based transfer method used in B-ISDN.
• VCI - Virtual Channel Identifier, the field used to identify a virtual channel in an ATM cell.
• VPC - Virtual Path Connection, the connection over which ATM cells are carried between endpoints.
• GFC - Generic Flow Control, the procedure used at certain interfaces to manage access behavior.
• S and T reference points - Interface reference points where the standard specifies GFC procedures.

Who uses SIST ETS 300 298-1 E2:2003?

SIST ETS 300 298-1 E2:2003 is used by telecommunications engineers, equipment vendors, network architects, and test or conformance teams working with B-ISDN and ATM. It is also relevant to buyers and technical managers who need to specify how ATM cells, headers, and interface procedures should behave in procurement or interoperability work. The named VCI, VPC, and GFC items matter most when comparing implementations or checking interface compatibility.

What changed in SIST ETS 300 298-1 E2:2003 from the previous edition?

Compared with edition 1 of ETS 300 298-1 and ETS 300 298-2, this second edition introduces three specific updates:

• a new specification of the preassigned combination of the routing field in the cell header
• a rule for how a cell with a reserved VCI value is conveyed between the end points of the VPC
• GFC protocol procedures across the interface at S and T reference points

These changes matter because they tighten the definition of how cells are identified, carried, and controlled at key points in an ATM network.

Which standards are used with SIST ETS 300 298-1 E2:2003?

Standard	What it contributes
ITU-T Recommendation I.150 (1995)	The functional basis for Part 1; ETSI approved its text as an ETS without modification.
ITU-T Recommendation I.361 (1995)	The basis for Part 2, which covers the ATM layer specification.
ETS 300 298-2	The companion part in the ETS 300 298 series, covering B-ISDN ATM layer specification.

These references show that this document sits in an ETSI/ITU-T framework rather than standing alone.

What does the SIST ETS 300 298-1 E2:2003 document contain?

The document package includes the title pages, copyright and publication notices, a foreword, an endorsement notice, transposition dates, and document history. The foreword explains the two-part structure and identifies the relationship between Part 1 and Part 2. This makes the standard useful for traceability, edition control, and checking alignment with the ITU-T basis.

SLOVENSKI STANDARD
01-december-2003
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Broadband Integrated Services Digital Network (B-ISDN); Asynchronous Transfer Mode
(ATM); Part 1: B-ISDN ATM functional characteristics [ITU-T Recommendation I.150
(1995)]
Ta slovenski standard je istoveten z: ETS 300 298-1 Edition 2
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 298-1
TELECOMMUNICATION October 1996
STANDARD Second Edition
Source: ETSI TC-NA Reference: RE/NA-052810
ICS: 33.020
Key words: ATM, B-ISDN
Broadband Integrated Services Digital Network (B-ISDN);
Asynchronous Transfer Mode (ATM);
Part 1: B-ISDN ATM functional characteristics
[ITU-T Recommendation I.150 (1995)]
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail]
Tel.: [phone] - Fax: [phone]
Copyright Notification: No 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 1996. All rights reserved.

Page 2
ETS 300 298-1: October 1996
Foreword
This European Telecommunication Standard (ETS) has been produced by the Network Aspects (NA)
Technical C
...