IEC 62673:2013

Methodology for communication network dependability assessment and assurance

IEC 62673:2013 describes a generic methodology for dependability assessment and assurance of communication networks from a network life cycle perspective. It presents the network dependability assessment strategies and methodology for analysis of network topology, evaluation of dependability of service paths, and optimization of network configurations in order to achieve network dependability performance and dependability of service. It also addresses the network dependability assurance strategies and methodology for application of network health check, network outage control and test case management to enhance and sustain dependability performance in network service operation. This standard is applicable to network service providers, network designers and developers, and network maintainers and operators for assurance of network dependability performance and assessment of dependability of service. Keywords: methodology for dependability assessment and assurance of communication networks

Méthodologie pour l'évaluation et l'assurance de la sûreté de fonctionnement d'un réseau de communication

La CEI 62673:2013 décrit une méthodologie générale pour l'évaluation et l'assurance de la sûreté de fonctionnement des réseaux de communication du point de vue du cycle de vie d'un réseau. Elle présente les stratégies d'évaluation de la sûreté de fonctionnement d'un réseau ainsi que la méthodologie pour l'analyse de la topologie d'un réseau, l'évaluation de la sûreté de fonctionnement des trajet de services et l'optimisation des configurations de réseau afin d'obtenir les performances de sûreté de fonctionnement du réseau et de sûreté de fonctionnement des services. Elle traite également des stratégies d'assurance de la sûreté de fonctionnement du réseau ainsi que de la méthodologie pour l'application de la vérification de l'état de santé du réseau, du contrôle de la fréquence d'interruption du réseau et de la gestion des tests élémentaires pour améliorer et maintenir les performances de sûreté de fonctionnement des services de réseau. La présente norme est applicable aux fournisseurs de services de réseaux, aux concepteurs et développeurs de réseaux, ainsi qu'aux spécialistes de la maintenance et aux opérateurs de réseaux pour la garantie des performances de sûreté de fonctionnement des réseaux et l'évaluation de la sûreté de fonctionnement des services. Mots clés: méthodologie pour l'évaluation et l'assurance de la sûreté de fonctionnement des réseaux de communication

General Information

• Status: Published
• Publication Date: 17-Jun-2013
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 03.120.01 - Quality in general
• Technical Committee: TC 56 - Dependability
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jul-2013
• Completion Date: 18-Jun-2013

Standards Content (Sample)

IEC 62673 ®
Edition 1.0 2013-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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
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IEC 62673 ®
Edition 1.0 2013-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 03.120.01 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
3.1 Terms and definitions . 7
3.2 Abbreviations . 11
4 Overview of network dependability methodology . 11
4.1 Need for network dependability methods . 11
4.2 Network dependability objectives . 12
4.3 Network service scenarios . 13
4.4 Network dependability assessment strategies . 13
4.5 Network dependability assurance strategies . 14
5 Network dependability methodology applications . 15
5.1 Network life cycle process . 15
5.1.1 Life cycle process applications . 15
5.1.2 Risk assessment process applications . 15
5.1.3 Dependability methodology applications . 16
5.2 Network dependability performance characteristics . 17
5.3 Network dependability assessment methodology . 18
5.3.1 Generic dependability analysis and evaluation techniques . 18
5.3.2 Service scenario analysis . 19
5.3.3 Network modelling . 19
5.3.4 Network failure modes, effects and criticality analysis . 20
5.3.5 Network fault insertion test . 21
5.3.6 Failure reporting, analysis and corrective action system . 22
5.4 Network dependability assurance methodology . 22
5.4.1 Scope of dependability assurance methodology applications . 22
5.4.2 Assurance of dependability of service . 23
5.4.3 Assurance of data integrity . 23
5.4.4 Assurance of network performance functions and support process
enhancement . 24
5.4.5 Network dependability assurance methods . 24
Annex 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
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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.

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
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