EN 61907:2010

SLOVENSKI STANDARD
01-april-2010
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Guidance on communication network dependability engineering (IEC 61907:2009)
Zuverlässigkeit von Telekommunikationsnetzen (IEC 61907:2009)
Recommandation pour l'ingénierie de la sûreté de fonctionnement des réseaux de
communication (CEI 61907:2009)
Ta slovenski standard je istoveten z: EN 61907:2010
ICS:
21.020 =QDþLOQRVWLLQQDþUWRYDQMH Characteristics and design of
VWURMHYDSDUDWRYRSUHPH machines, apparatus,
equipment
33.040.40 Podatkovna komunikacijska Data communication
omrežja networks
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61907
NORME EUROPÉENNE
February 2010
EUROPÄISCHE NORM
ICS 21.020; 33.040.40
English version
Communication network dependability engineering
(IEC 61907:2009)
Ingénierie de la sûreté de fonctionnement Zuverlässigkeit
des réseaux de communication von Kommunikationsnetzen
(CEI 61907:2009) (IEC 61907:2009)

This European Standard was approved by CENELEC on 2010-02-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61907:2010 E
Foreword
The text of document 56/1339/FDIS, future edition 1 of IEC 61907, prepared by IEC TC 56,
Dependability, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61907 on 2010-02-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2010-11-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-02-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61907:2009 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
[1] IEC 60300-1 NOTE  Harmonized as EN 60300-1.
[2] IEC 60300-2 NOTE  Harmonized as EN 60300-2.
[3] IEC 60300-3-1 NOTE  Harmonized as EN 60300-3-1.
[4] IEC 60300-3-3 NOTE  Harmonized as EN 60300-3-3.
[5] IEC 60300-3-11 NOTE  Harmonized as EN 60300-3-11.
[6] IEC 60300-3-12 NOTE  Harmonized as EN 60300-3-12.
[7] IEC 60812 NOTE  Harmonized as EN 60812.
[8] IEC 61025 NOTE  Harmonized as EN 61025.
[9] IEC 61078 NOTE  Harmonized as EN 61078.
[10] IEC 61165 NOTE  Harmonized as EN 61165.
__________
- 3 - EN 61907:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60050-191 - International Electrotechnical Vocabulary - -
(IEV) -
Chapter 191: Dependability and quality of
service
IEC 60300-3-15 - Dependability management - EN 60300-3-15 -
Part 3-15: Application guide - Engineering of
system dependability
IEC 61907 ®
Edition 1.0 2009-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Communication network dependability engineering

Ingénierie de la sûreté de fonctionnement des réseaux de communication

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XB
CODE PRIX
ICS 21.020; 33.040.40 ISBN 2-8318-1072-8
– 2 – 61907 © IEC:2009
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms, definitions and abbreviations .7
3.1 Terms and definitions .7
3.2 Abbreviations .10
4 Overview of communication network dependability .10
4.1 Network dependability framework .10
4.2 Network life cycle and evolution process .11
5 Network dependability implementation.12
5.1 Dependability engineering applications.12
5.2 Network technology consideration .21
5.3 Network service functions consideration.22
5.4 Network performance consideration.23
5.5 Integrity of network data and information .26
5.6 Quality of service (QoS) .27
6 Network dependability assessment and measurement .30
6.1 Network dependability analysis .30
6.2 Network dependability fault insertion test .31
6.3 Measurement of network dependability attributes .32
6.4 Network dependability assessment methods .32
7 Quality of service measurement.34
7.1 QoS measurement overview.34
7.2 Generic user-oriented QoS parameters and requirements .35
Annex A (informative) Generic communication network model and related concepts .37
Annex B (informative) Network life cycle and evolution process .46
Annex C (informative) Criteria for establishing network security services .56
Bibliography.60

Figure A.1 – A generic communication network model .37
Figure A.2 – A process model on interactions of areas of influence.38
Figure A.3 – OSI reference model.39
Figure A.4 – QoS, dependability and network performance relationships .41
Figure B.1 – Network evolution process incorporated in the network life cycle stages .46

Table 1 – A matrix for capturing user’s QoS data .36
Table A.1 – Examples of dependability influencing factors affecting network
technology .42
Table A.2 – Examples of dependability influencing factors affecting network service
functions.
Table A.3 – Examples of dependability influencing factors affecting delivery of network
performance .44
Table A.4 – Examples of dependability influencing factors affecting integrity of
network data and information and provision of QoS .45

61907 © IEC:2009 – 3 –
Table C.1 – Four basic types of vulnerability causes.57

– 4 – 61907 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COMMUNICATION NETWORK DEPENDABILITY ENGINEERING

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61907 has been prepared by IEC technical committee 56:
Dependability.
The text of this standard is based on the following documents:
FDIS Report on voting
56/1339/FDIS 56/1350/RVD
Full information on the
...