SIST ETS 300 301 E2:2003

• Abstract:

  ETS 300 301 is referring to I.371(1992). An updated version of I.371 is scheduled for mid 94. Therefore an updated version of ETS 300 301 is forseen for end 94.

• 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 300 301 ed.2 (1997-04) - Broadband Integrated Services Digital Network (B-ISDN); Traffic control and congestion control in B-ISDN [ITU-T Recommendation I.371 (1996)]

SIST ETS 300 301 E2:2003 is the Slovenian adoption of ETS 300 301 Edition 2, published by SIST. It covers traffic control and congestion control in Broadband Integrated Services Digital Network (B-ISDN) and adopts ITU-T Recommendation I.371 (1996) without technical change. The standard is for people who plan, design, or operate B-ISDN and ATM-based networks and need the traffic parameters and transfer capabilities used to manage network resources.

What does SIST ETS 300 301 E2:2003 specify?

SIST ETS 300 301 E2:2003 specifies the traffic control and congestion control framework for B-ISDN. It is the ETSI-approved text of ITU-T Recommendation I.371 (1996), so the technical content is carried over as published by ITU-T.

The front matter identifies the document as the second edition, gives the approval and publication information, and notes that ETSI approved the ITU-T text without modification. In practice, that tells the reader this is a direct standards adoption, not a rewritten national variant.

What are the key requirements of SIST ETS 300 301 E2:2003?

SIST ETS 300 301 E2:2003 sets out the traffic parameters and ATM layer transfer capabilities used to describe and control B-ISDN traffic. The most important practical point is that the standard gives network planners a common vocabulary for deciding how traffic is characterized and how resources are allocated.

• Peak Cell Rate is the basic traffic parameter referenced by the standard. In practice, it is part of the traffic description used when sizing or admitting a connection.
• Sustainable Cell Rate is an additional traffic parameter named in the second edition. It matters when traffic has both bursty and longer-term behavior, so planners can describe load more realistically.
• Intrinsic Burst Tolerance is another added traffic parameter. It is used where short bursts need to be distinguished from steady traffic, which affects how much capacity must be reserved or shared.
• Deterministic Bit Rate transfer capability is the basic ATM layer transfer capability based on peak allocation. This is the more rigid resource model and is relevant where predictable capacity is needed.
• Statistical Bit Rate transfer capability is one of the added transfer capabilities. It supports statistical allocation of network resources, which is useful when not every connection needs fixed peak capacity all the time.
• Available Bit Rate transfer capability is also added in this edition. It gives a way to describe services that can use leftover capacity, which matters for efficient network sharing.
• ATM Block Transfer capability is included as an additional transfer capability. It supports block-oriented transfer behavior within the broader ATM traffic model.
• The foreword states that these additions are the main difference from edition 1. For a buyer or engineer, that means the second edition is the better fit when the design needs more than peak-based traffic control.

What terms does SIST ETS 300 301 E2:2003 define?

• B-ISDN - Broadband Integrated Services Digital Network, the network environment covered by the standard.
• Peak Cell Rate - the basic traffic parameter used in the standard’s traffic description.
• Sustainable Cell Rate - an added traffic parameter used alongside peak-based description.
• Intrinsic Burst Tolerance - a parameter used to express how bursty traffic may be.
• Deterministic Bit Rate transfer capability - the peak-allocation transfer capability named in the standard.
• Statistical Bit Rate transfer capability - a transfer capability for statistical resource allocation.
• Available Bit Rate transfer capability - a transfer capability that uses available network capacity.
• ATM Block Transfer capability - a transfer capability for block-oriented transfer behavior.

Who uses SIST ETS 300 301 E2:2003?

SIST ETS 300 301 E2:2003 is used by telecom engineers, network planners, equipment vendors, and operators working with B-ISDN and ATM-based networks. Quality managers and buyers can also use it to check whether a product or network design uses the B-ISDN traffic terms and transfer capabilities expected by the standard.

What changed in SIST ETS 300 301 E2:2003 from the previous edition?

The foreword says that, compared with edition 1 of ETS 300 301, this second edition adds traffic parameters beyond Peak Cell Rate: Sustainable Cell Rate and Intrinsic Burst Tolerance. It also adds ATM layer transfer capabilities beyond Deterministic Bit Rate: Statistical Bit Rate, Available Bit Rate, and ATM Block Transfer.

Which standards are used with SIST ETS 300 301 E2:2003?

• ITU-T Recommendation I.371 (1996) - the text that ETSI approved without modification and published as ETS 300 301 Edition 2.

What does the SIST ETS 300 301 E2:2003 document contain?

SIST ETS 300 301 E2:2003 contains the ETS front matter, the foreword, transposition dates, endorsement notice, and document history, followed by the approved technical text on B-ISDN traffic control and congestion control. The foreword is especially useful because it explains the added traffic parameters and ATM layer transfer capabilities that distinguish this edition from the earlier one. For readers, the document is mainly a reference for specifying traffic behavior and the way network resources are controlled or shared.

SLOVENSKI STANDARD
01-december-2003
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Broadband Integrated Services Digital Network (B-ISDN); Traffic control and congestion
control in B-ISDN [ITU-T Recommendation I.371 (1996)]
Ta slovenski standard je istoveten z: ETS 300 301 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 300 301
TELECOMMUNICATION April 1997
STANDARD Second Edition
Source: ETSI TC-NA Reference: RE/NA-052808
ICS: 33.020
Key words: ATM, B-ISDN, congestion, traffic
Broadband Integrated Services Digital Network (B-ISDN);
Traffic control and congestion control in B-ISDN
[ITU-T Recommendation I.371 (1996)]
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 1997. All rights reserved.

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ETS 300 301: April 1997
Foreword
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