EN 62673:2013

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Metodologija za ocenjevanje in zagotavljanje zagotovljivosti komunikacijskega omrežja (IEC 62673:2013)/Méthodologie pour l’évaluation et l’assurance de la sûreté de fonctionnement des réseaux de communicationMethodology for communication network dependability assessment and assurance33.040.40Podatkovna komunikacijska omrežjaData communication networks03.120.99Drugi standardi v zvezi s kakovostjoOther standards related to qualityICS:Ta slovenski standard je istoveten z:EN 62673:2013SIST EN 62673:2014en01-maj-2014SIST EN 62673:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 62673 NORME EUROPÉENNE
EUROPÄISCHE NORM August 2013
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2013 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62673:2013 E
ICS 03.120.01
English version
Methodology for communication network dependability assessment and assurance (IEC 62673:2013)
Méthodologie pour l’évaluation et l’assurance de la sûreté de fonctionnement des réseaux de communication (CEI 62673:2013)
Methodik zur Beurteilung und Sicherstellung der Zuverlässigkeit von Kommunikationsnetzen (IEC 62673:2013)
This European Standard was approved by CENELEC on 2013-07-23. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Foreword The text of document 56/1507/FDIS, future edition 1 of IEC 62673, prepared by IEC/TC 56 "Dependability" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62673:2013. The following dates are fixed: • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-04-23 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2016-07-23
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights.
Endorsement notice The text of the International Standard IEC 62673:2013 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:
IEC 61078 NOTE Harmonised as EN 61078. IEC 62198 NOTE Harmonised as EN 62198. IEC 60812 NOTE Harmonised as EN 60812. IEC 60300-3-11 NOTE Harmonised as EN 60300-3-11. IEC 60300-3-1 NOTE Harmonised as EN 60300-3-1. IEC 61165 NOTE Harmonised as EN 61165 SIST EN 62673:2014

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Annex ZA
(normative)
Normative references to international publications with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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 -
Part 3-15: Application guide - Engineering of system dependability EN 60300-3-15
IEC 61907
Communication network dependability engineering EN 61907
IEC 62673 Edition 1.0 2013-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Methodology for communication network dependability assessment and assurance
Méthodologie pour l'évaluation et l'assurance de la sûreté de fonctionnement d'un réseau de communication
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE W ICS 03.120.01 PRICE CODE CODE PRIX ISBN 978-2-83220-871-7
– 2 – 62673  IEC:2013 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Normative references . 7 3 Terms, definitions and abbreviations . 7
Terms and definitions . 7 3.1 Abbreviations . 11 3.24 Overview of network dependability methodology . 11
Need for network dependability methods . 11 4.1 Network dependability objectives . 12 4.2 Network service scenarios . 13 4.3 Network dependability assessment strategies . 13 4.4 Network dependability assurance strategies . 14 4.55 Network dependability methodology applications . 15
Network life cycle process . 15 5.1 Life cycle process applications . 15 5.1.1 Risk assessment process applications . 15 5.1.2 Dependability methodology applications . 16 5.1.3 Network dependability performance characteristics . 17 5.2 Network dependability assessment methodology . 18 5.3 Generic dependability analysis and evaluation techniques . 18 5.3.1 Service scenario analysis . 19 5.3.2 Network modelling . 19 5.3.3 Network failure modes, effects and criticality analysis . 20 5.3.4 Network fault insertion test . 21 5.3.5 Failure reporting, analysis and corrective action system . 22 5.3.6 Network dependability assurance methodology . 22 5.4 Scope of dependability assurance methodology applications . 22 5.4.1 Assurance of dependability of service . 23 5.4.2 Assurance of data integrity . 23 5.4.3 Assurance of network performance functions and support process 5.4.4enhancement . 24
Network dependability assurance methods . 24 5.4.5Annex A (informative)
Example of E2E network dependability assessment . 27 Annex B (informative)
Example of full-end network dependability assessment . 33 Annex C (informative)
Evaluation of network dependability performance in field operation . 35 Bibliography . 37
Figure A.1 – A typical example of an E2E network topology . 27 Figure B.1 – A typical example of a full-end network topology . 33 Figure C.1 – Network outage contributions and resultant network service impact . 36
62673  IEC:2013 – 3 –
Table 1 – Summary of network dependability activities and application methods . 17 Table 2 – Summary of network dependability parameters. 18 Table C.1 – Summary of network failure data of a nation-wide public switched telephone network . 35
– 4 – 62673  IEC:2013 INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
METHODOLOGY FOR COMMUNICATION NETWORK
DEPENDABILITY ASSESSMENT AND ASSURANCE
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 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
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 62673 has been prepared by IEC technical committee 56: Dependability. The text of this standard is based on the following documents: FDIS Report on voting 56/1507/FDIS 56/1514/RVD
Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. SIST EN 62673:2014

62673  IEC:2013 – 5 – The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be
• reconfirmed, • withdrawn, • replaced by a revised edition, or • amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its conten
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