SIST ETS 300 399-4 E1:2003

• Abstract:

  Definition of Frame Relay Bearer Service supported on ATM and B-ISDN networks.

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.040.01 - Telecommunication systems in general
• 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 300 399-4 ed.1 (1998-02) - Frame relay services; Part 4: Broadband Integrated Services Digital Network (B-ISDN); Frame relay bearer service; Service definition

SIST ETS 300 399-4 E1:2003 is the Slovenian adoption of ETS 300 399-4 Edition 1, published by SIST. It specifies the network-specific aspects of the frame relay bearer service when it is offered on Broadband Integrated Services Digital Network (B-ISDN) networks, including how Frame Relay - Service Specific Convergence Sublayer (FR-SSCS) data units are carried, addressed, signalled and classified. It is the document to use when defining or implementing frame relay bearer service on B-ISDN and ATM-based networks.

What does SIST ETS 300 399-4 E1:2003 specify?

SIST ETS 300 399-4 E1:2003 covers the B-ISDN-specific part of frame relay bearer service. It relies on the common frame relay description in ETS 300 399-1 and is intended for any B-ISDN that offers this service.

The document is organized into clauses 1 to 13 plus one informative annex:

• Clauses 1-4 cover scope, normative references, definitions and abbreviations.
• Clause 5 gives the general service definition.
• Clauses 6-13 cover the service description, classes, procedures, charging, interworking, attributes, dynamic description and numbering plan.
• Annex A is a bibliography.

What are the key requirements of SIST ETS 300 399-4 E1:2003?

SIST ETS 300 399-4 E1:2003 defines how the bearer service works on B-ISDN and what service properties apply in practice.

• Clause 5 - General definition: The service carries FR-SSCS Service Data Units bi-directionally between S or T reference points, using a locally significant label called the Data Link Connection Identifier (DLCI). For the user, this means frames are switched by connection label, and the order is preserved for each DLCI.

• Clause 5 - Multiple virtual channels: The user-network interface allows multiple on-demand and/or permanent virtual channels to many destinations. In practice, one access line can support several separate frame relay connections.

• Clause 7 - Service classes: Table 1 groups the service into classes P, A and B, with permanent or on-demand variants and optional Q.933 annex A or annex B connection monitoring. The classes are defined per Asynchronous Transfer Mode (ATM) connection, and not all classes have to be offered together on one ATM connection.

• Clause 7 - Resource allocation: Service classes on ATM connections use peak rate resource allocation. For users, this means planning capacity around peak throughput rather than a more flexible shared allocation model.

• Clause 8 and clause 11 - Procedures and protocols: The procedures follow the protocols named in table 2, together with clause 8 of ETS 300 399-1. Table 2 also shows the access protocol combinations for layer 1, layer 2 and layer 3. This matters because implementation and interoperability depend on using the right signalling and data-link stack.

• Clause 11 - Service attributes: The service is described as frame mode, unrestricted, SDU integrity, bi-directional symmetric and point-to-point. Table 2 also states that the transfer rate is limited by the user access channel and the throughput of the frame relay connection.

• Clause 11 - On-demand options: The signalling access protocol items in table 2 for layer 1, layer 2, layer 3 and supplementary services apply only to on-demand frame relay bearer services. This helps distinguish what is relevant for permanent service versus connection setup and signalling.

• Clause 13 - Numbering plans: E.164 and X.121 numbering plans apply depending on the service class, and table 3 shows the dependency. For implementers, this determines how addresses are assigned and interpreted on the interface.

What terms does SIST ETS 300 399-4 E1:2003 define?

• ATM (Asynchronous Transfer Mode): The transport and connection technology used for the access and service support described in this ETS.
• B-ISDN (Broadband Integrated Services Digital Network): The broadband digital network environment in which the frame relay bearer service is offered.
• DLCI (Data Link Connection Identifier): The locally significant label used to route frame relay data units through the network.
• FR-SSCS (Frame Relay - Service Specific Convergence Sublayer): The adaptation function that presents frame relay service data units to the network.
• SDU (Service Data Unit): The user data unit carried by the service.
• QoS (Quality of Service): The service quality concept referenced in the attributes, even though no specific QoS values are assigned here.
• AAL (ATM Adaptation Layer): The ATM layer adaptation used in the access and signalling protocol options.

Who uses SIST ETS 300 399-4 E1:2003?

Telecom network operators, B-ISDN service providers, switch and access-network equipment designers, signalling engineers, and interworking specialists use this ETS to define and implement frame relay bearer service. It is also useful for test labs, quality managers and buyers who need to check service class support, numbering plans, access protocols and the relation to ETS 300 399-1.

Which standards are used with SIST ETS 300 399-4 E1:2003?

Reference	What it contributes
ETS 300 399-1	The common frame relay service description used with this part.
ETS 300 467	Support of Frame Relay Bearer Service in B-ISDN and interworking with other networks.
CCITT Recommendation E.164	Numbering plan for the ISDN era.
ETS 300 299	Cell based user network access physical layer interfaces for B-ISDN applications.
ETS 300 300	SDH based user network access physical layer interfaces for B-ISDN applications.
CCITT Recommendation Q.922	Data link layer specification for frame mode bearer services.
ITU-T Recommendation Q.933	Basic call control signalling for frame mode services.
ITU-T Recommendation Q.2100	SAAL overview description.
ITU-T Recommendation Q.2110	SSCOP support for B-ISDN signalling.
ITU-T Recommendation Q.2130	SSCF at UNI for signalling support.
CCITT Recommendation X.121	International numbering plan for public data networks.
ETS 300 428	AAL Type 5 specification.
ETS 300 298-2	B-ISDN ATM layer basic characteristics and functional specifications.
CCITT Recommendation Q.2931	DSS2 basic call/connection control at UNI.
CCITT Recommendation Q.2933	Signalling specification for Frame Relay service.

What does the SIST ETS 300 399-4 E1:2003 document contain?

The document contains the service definition, class structure, protocol and access options, numbering-plan rules and attribute tables needed to specify frame relay bearer service on B-ISDN. Tables 1, 2 and 3 are the main implementation references: Table 1 groups the bearer service classes, Table 2 lists the service attributes and protocol combinations, and Table 3 ties numbering plans to service classes. It also includes the clauses used for procedures, charging, interworking and the general description inherited from ETS 300 399-1.

SLOVENSKI STANDARD
01-december-2003
Storitve blokovnega posredovanja – 4. del: Širokopasovno digitalno omrežje z
integriranimi storitvami (B-ISDN) – Nosilna storitev blokovnega posredovanja –
Definicija storitve
Frame relay services; Part 4: Broadband Integrated Services Digital Network (B-ISDN);
Frame relay bearer service; Service definition
Ta slovenski standard je istoveten z: ETS 300 399-4 Edition 1
ICS:
33.040.01 Telekomunikacijski sistemi Telecommunication systems
na splošno in general
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 300 399-4
TELECOMMUNICATION February 1998
STANDARD
Source: NA Reference: DE/NA-053207
ICS: 33.020
Key words: ATM, bearer, B-ISDN, FMBS, frame relay,
Frame relay services;
Part 4: Broadband Integrated Services Digital Network (B-ISDN);
Frame relay bearer service;
Service definition
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 1998. All rights reserved.

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ETS 300 399-4: February 1998
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 399-4: February 1998
Contents
Foreword .5
Introduction.5
1 Scope .7
2 Normative references.7
3 Definitions.8
4 Abbreviations.8
5 General definition .8
6 Description of the frame relay service.8
7 Service classes .8
8 Procedures.9
9 Network capabilities for charging .9
10 Interworking.9
11 Attributes and values of attributes.9
12 Dynamic description.10
13 Numbering plan.10
Annex A (informative): Bibliography.12
History.13

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ETS 300 399-4: February 1998
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ETS 300 399-4: February 1998
Foreword
This European Telecommunication Standard (ETS) has been produced by the Network Aspects (NA)
Technical Committee of the European Telecommunications Standards Institute (ETSI).
The content of this ETS is adapted from CCITT Recommendation I.233.1.
This ETS consists of 4 parts as follows:
Part 1: "Part 1: General description".
Part 2: "Part 2: Integrated Services Digital Network (ISDN); Frame relay bearer service; Service
definition".
Part 3: "Part 3: Integrated Services Digital Network (ISDN); Frame relay data transmission service;
Service definition".
Part 4: "Part 4: Broadband Integrated Services Digital Network (B-ISDN); Frame relay bearer
service; Service definition".
Transposition dates
Date of adoption of this ETS: 23 January 1998
Date of latest announcement of this ETS (doa): 31 May 1998
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 30 November 1998
Date of withdrawal of any conflicting National Standard (dow): 30 November 1998
Introduction
The purpose of this ETS is to describe the network specific aspects of the frame relay service when it is
offered on a Broadband Integrated Services Digital Network (B-ISDN).

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ETS 300 399-4: February 1998
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ETS 300 399-4: February 1998
1 Scope
This European Telecommunication Standard (ETS) specifies the network specific aspects of the frame
relay service when it is offered on a Broadband Integrated Services Digital Network (B-ISDN); the service
is called "frame relay bearer service".
This ETS is applicable for all B-ISDNs offering a frame relay bearer service.
This ETS should be complemented with ETS 300 399-1 [1], for the common part of the frame relay
service.
2 Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] ETS 300 399-1: "Frame relay services; Part 1: General description".
[2] ETS 300 467: "Broadband Integrated Services Digital Network (B-ISDN);
Support of Frame Relay Bearer Service (FRBS) in B-ISDN and frame relay
interworking between B-ISDN and other networks".
[3] CCITT Recommendation E.164: "Numbering plan for the ISDN era".
[4] ETS 300 299: "Cell based user network access physical layer interfaces for B-
ISDN applications".
[5] ETS 300 300: "SDH based user network access physical layer interfaces for B-
ISDN applications".
[6] CCITT Recommendation Q.922: "ISDN data link layer specification for frame
mode bearer services".
[7] ITU-T Recommendation Q.933: "Signalling specification for frame mode basic
call control".
[8] ITU-T Recommendation Q.2100: "B-ISDN signalling ATM Adaptation Layer
(SAAL) overview description".
[9] ITU-T Recommendation Q.2110: "B-ISDN ATM Adaptation Layer - Service
Specific Connection Oriented Protocol (SSCOP)".
[10] ITU-T Recommendation Q.2130: "B-ISDN ATM Adaptation Layer - Service
specific co-ordination function for support of signalling at the user-network
interface (SSCF at UNI)".
[11] CCITT Recommendation X.121: "International numbering plan for public data
networks".
[12] ETS 300 428: "Broadband Integrated Services Digital Network (B-ISDN);
Asynchronous Transfer Mode (ATM) Adaptation Layer (AAL) specification -
Type 5".
[13] ETS 300 298-2: "Broadband Integrated Services Digital Network (B-ISDN);
Asynchronous Transfer Mode (ATM); Basic characteristics and functional
specifications of ATM; Part 2: B-ISDN ATM layer specifications".
...