Network Aspects (NA); Accessibility for 64 kbit/s circuit switched international end-to-end ISDN traffic relations

This standard will specify the accessability of international end-to- end circuit switched 64 kbit/s traffic relations between T-reference points. The standard will not cover blocking at the user network interface nor catastrophic situations e.g. earthquakes, Floods etc.

Omrežni vidiki (NA) – Dostopnost mednarodnih vodovno komutiranih prometnih povezav konec-konec za hitrosti 64 kbit/s v ISDN

General Information

Status
Published
Publication Date
30-Nov-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-2003
Due Date
01-Dec-2003
Completion Date
01-Dec-2003

Buy Standard

Standard
SIST ETS 300 251 E1:2003
English language
13 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST ETS 300 251 E1:2003
01-december-2003
Omrežni vidiki (NA) – Dostopnost mednarodnih vodovno komutiranih prometnih
povezav konec-konec za hitrosti 64 kbit/s v ISDN

Network Aspects (NA); Accessibility for 64 kbit/s circuit switched international end-to-end

ISDN traffic relations
Ta slovenski standard je istoveten z: ETS 300 251 Edition 1
ICS:
33.040.40 Podatkovna komunikacijska Data communication
omrežja networks
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST ETS 300 251 E1:2003 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST ETS 300 251 E1:2003
---------------------- Page: 2 ----------------------
SIST ETS 300 251 E1:2003
EUROPEAN ETS 300 251
TELECOMMUNICATION August 1993
STANDARD
Source: ETSI TC-NA Reference: DE/NA-042106
ICS: 33.080
ISDN, access
Key words:
Network Aspects (NA);
Accessibility for 64 kbit/s circuit switched
international end-to-end ISDN traffic relations
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16

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 1993. All rights reserved.
New presentation - see History box
---------------------- Page: 3 ----------------------
SIST ETS 300 251 E1:2003
Page 2
ETS 300 251: August 1993

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.

---------------------- Page: 4 ----------------------
SIST ETS 300 251 E1:2003
Page 3
ETS 300 251: August 1993
Contents

Foreword...........................................................................................................................................5

1 Scope ......................................................................................................................................7

2 Normative references ................................................................................................................7

3 Definitions................................................................................................................................. 7

4 Symbols and abbreviations.........................................................................................................8

5 Explicit definition for a measure for accessibility performance .......................................................8

5.1 Introduction.................................................................................................................8

5.2 Principles and definitions..............................................................................................8

6 Requirements............................................................................................................................9

7 Success criteria for connection attempts................................................................................... 10

8 Evaluation of the NP measure for accessibility ........................................................................... 11

History............................................................................................................................................. 13

---------------------- Page: 5 ----------------------
SIST ETS 300 251 E1:2003
Page 4
ETS 300 251: August 1993
Blank page
---------------------- Page: 6 ----------------------
SIST ETS 300 251 E1:2003
Page 5
ETS 300 251: August 1993
Foreword

This European Telecommunication Standard (ETS) has been prepared by the Network Aspects (NA)

Technical Committee of the European Telecommunications Standards Institute (ETSI).

This ETS specifies the accessibility of international end-to-end circuit-switched 64 kbit/s Integrated

Services Digital Network (ISDN) traffic relations between T reference points.
---------------------- Page: 7 ----------------------
SIST ETS 300 251 E1:2003
Page 6
ETS 300 251: August 1993
Blank page
---------------------- Page: 8 ----------------------
SIST ETS 300 251 E1:2003
Page 7
ETS 300 251: August 1993
1 Scope

This European Telecommunication Standard (ETS) specifies the accessibility of international end-to-end

circuit-switched 64 kbit/s Integrated Services Digital Network (ISDN) traffic relations between T reference

points.

This ETS does not cover blocking at the user-network interface nor catastrophic situations, e.g. earth

quakes, floods, etc.

NOTE: A corresponding compliance ETS is planned for September 1994. Until the document is

available, this ETS may be used for design purposes.
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] Supplement No. 6 to CCITT E series Recommendations: "Terms and definitions
of Quality of Service, Network Performance, Dependability and Trafficability
studies".
[2] ETR 044: "Network Aspects (NA); Reference events for network performance
parameters in an ISDN".

[3] DE/NA-042104: "Network performance objectives for circuit-switched connection

processing delays in an ISDN".
[4] ETS 300 297: "Integrated Services Digital Network (ISDN); Access Digital
Section for ISDN basic rate".
[5] DI/NA-042117: "Network Aspects (NA); Accessibility for 64 kbit/s

circuit-switched international end-to-end ISDN traffic relations Conformance test

specification".
3 Definitions
For the purpose of this ETS, the following definitions apply:

Accessibility performance: the ability of a network to provide a connection within a specified delay when

a correct request is received from the user at the T interface.
NOTE: The request includes activation of layer 1.

Accessibility: a measure for accessibility performance. The explicit definition of the measure is given in

Clause 5 of this ETS.

Measure: a function or quantity used to describe a random variable or a random process (definition

number 3011 in Supplement No. 6 to CCITT E series Recommendations [1]).

Short Term Accessibility (STA): the explicit definition of the STA is given in Clause 5 of this ETS.

---------------------- Page: 9 ----------------------
SIST ETS 300 251 E1:2003
Page 8
ETS 300 251: August 1993
4 Symbols and abbreviations
For the purpose of this ETS, the following symbols and abbreviations are used:
MPT1 Measurement Point 1
NP Network Performance
STA Short Term Accessibility
T Time interval over which the random variable STA is defined
T interface at reference point T
SABME Set Asynchronous Balanced Mode Extended
UA Unnumbered Acknowledgement
5 Explicit definition for a measure for accessibility performance
5.1 Introduction

A Network Performance (NP) measure for accessibility performance should be as simple and easy to

evaluate as possible. On the other hand, as the quality of service measure for accessibility performance

depends mainly on the corresponding NP measure of the used network, a NP measure for accessibility

performance has to characterise, as accurately as possible, the aspects which are important for the user.

These requirements are conflicting and there
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.