ISO/IEC 10164-20:1999

Information technology — Open Systems Interconnection — Systems Management: Time management function — Part 20:

This Recommendation | International Standard defines a Systems Management Function that may be used by an application process in a centralized or decentralized management environment to interact for the purpose of systems management, as defined by ITU-T Rec. X.200 | ISO/IEC 7498-1. This Recommendation | International Standard defines a function which consists of generic definitions, services, and functional units. This function is positioned in the application layer of ITU-T Rec.X.200 | ISO/IEC 7498-1 and is defined according to the model provided by ISO 9545. The role of systems management functions is described by CCITT Rec. X.701 | ISO /IEC 10040. This Recommendation | International Standard: – defines a service for the management of clocks for use by OSI management and available for use by OSI applications and others; – establishes user requirements for this Recommendation | International Standard; – establishes a time management function model, addressing the components of a generic time service involving communication between systems, that relates the service and generic definitions provided by this function to the user requirements; – defines generic object classes, attribute types, operation types, notification types, and parameters documented in accordance with CCITT Rec. X.722 | ISO/IEC 10165-4; – specifies compliance requirements placed on other standards that make use of these generic definitions; – defines the services provided by the function; – specifies the management protocol that is necessary in order to provide the services; – defines the relationship between these services and systems management operations and notifications; – specifies the abstract syntax necessary to identify and negotiate the function unit in the protocol; – defines relationships with other systems management functions; – specifies conformance requirements to be met by implementation of this Recommendation | International Standard; – identifies time synchronization protocols. This Recommendation | International Standard does not: – address the provision of time information within a local system; – define the nature of any implementation intended to provide the Time Management Function; – specify the manner in which management is accomplished by the user of the Time Management Function; – define the nature of any interaction which results in the use of the Time Management Function; – specify the services necessary for the establishment, use, and normal or abnormal release of a management association.

Technologies de l'information — Interconnexion de systèmes ouverts (OSI) — Gestion-systèmes: Fonction de gestion du temps — Partie 20:

La présente Recommandation I Norme internationale définit une fonction de gestion-systèmes qui peut être utilisée par un processus d'application dans un environnement de gestion centralise ou décentralise pour effectuer une interaction a des fins de gestion-systèmes, telles qu'elles sont définies par la Rec. UIT-T X.200 I ISO/CEI 7498-1. La présente Recommandation I Norme internationale définit une fonction constituée de définitions génériques, de services et d'unités fonctionnelles. Cette fonction est localisée dans la couche Application décrite dans la Rec. UIT-T X.200 I ISO/CEI 7498-1; elle est définie conformément au modelé fourni par l'ISO 9545. Le rôle des fonctions de gestion-systèmes est décrit dans la Rec. X.701 du CCITT I ISO/CEI 10040. La présente Recommandation I Norme internationale traite des points suivants: − définition d'un service de gestion d'horloge pour une utilisation par la gestion OSI, et qui est également utilisable par des applications OSI et autres; − mise en évidence des besoins utilisateur pour la présente Recommandation I Norme internationale; − élaboration d'un modèle de fonction de gestion du temps couvrant, d'une part, les éléments constitutifs d'un service générique de temps qui implique une communication entre systèmes et mettant en relation, d'autre part, le service et les définitions génériques fournies par cette fonction avec les besoins de l'utilisateur; − définition de classes d'objets génériques, des types d'attribut, des types d'opération, des types de notification et des paramètres décrits conformément a la Rec. X.722 du CCITT I ISO/CEI 10165-4; − spécification des prescriptions de conformité s'appliquant aux normes qui font usage de ces définitions génériques; − définition des services fournis par la fonction; − spécification du protocole nécessaire a la fourniture des services; − définition de la relation entre ces services et les opérations et notifications de gestion-systèmes; − spécification de la syntaxe abstraite nécessaire a l'identification et a la négociation de l'unité fonctionnelle dans le protocole; − définition de relations avec d'autres fonctions de gestion-systèmes; − spécifications de prescriptions de conformité devant être respectées par une implémentation de la présente Recommandation I Norme internationale; − identification des protocoles de synchronisation du temps. La présente Recommandation I Norme internationale ne traite pas des points suivants: − fourniture d'informations de temps a un système local; − définition de la nature de toute implémentation dont l'objet est de fournir la fonction de gestion du temps; − spécification de la manière dont l'utilisateur de la fonction de gestion du temps effectue la gestion; − définition de la nature de toute interaction résultant de l'utilisation de la fonction de gestion du temps; − spécification des services nécessaires a l'établissement et a l'utilisation, ainsi qu'a la libération normale et 'une association de gestion.

General Information

• Status: Published
• Publication Date: 09-Jun-1999
• ICS: 35.100.70 - Application layer
• Technical Committee: ISO/IEC JTC 1 - Information technology
• Drafting Committee: ISO/IEC JTC 1 - Information technology
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 07-Jul-2010

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 10164-20
First edition
1999-06-01
Information technology — Open Systems
Interconnection — Systems Management:
Time management function
Technologies de l’information — Interconnexion de systèmes ouverts
(OSI) — Gestion-systèmes: Fonction de gestion du temps
Reference number
ISO/IEC 10164-20:1999(E)

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ISO/IEC 10164-20:1999(E)
©ISO/IEC 1999
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
ISO/IEC Copyright Office • Case postale 56 • CH-1211 Genève 20 • Switzerland
Printed in Switzerland
ii

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©ISO/IEC ISO/IEC 10164-20 : 1999 (E)
Contents
Page
1 Scope . 1
2 Normative references. 1
2.1 Identical Recommendations | International Standards. 2
2.2 Paired Recommendations | International Standards equivalent in technical content. 3
2.3 Additional references . 3
3 Definitions . 3
3.1 Management framework definitions. 3
3.2 Systems management overview definitions . 3
3.3 CMIS definitions . 4
3.4 Management information model definitions . 4
3.5 Guidelines for the definition of managed objects definitions. 4
3.6 Implementation conformance statement proforma definitions. 4
3.7 Additional definitions. 4
4 Abbreviations . 5
5 Conventions. 5
6 Requirements. 6
6.1 Time representation requirements . 6
6.2 Time accuracy and precision requirements . 6
6.3 Time distribution requirements . 7
6.4 Time service reliability requirements. 7
6.5 Local clock requirements . 7
7 Model. 7
7.1 Generic time functionality. 8
7.2 Time Management Function. 9
7.2.1 Time-related resources . 9
7.2.2 Time management functions . 9
7.2.3 Time management function managed objects . 10
7.2.4 The clockSource managed object. 10
7.2.5 The synchronizationProtocol managed object. 11
7.3 Clock coordination function. 12
7.3.1 Time synchronization protocol. 12
7.3.2 Procedures for time synchronization . 12
7.4 Time user function. 13
8 Generic definitions . 13
8.1 The representation of time. 13
8.2 Managed object classes . 14
8.2.1 Clock source. 14
8.2.2 Local clock . 14
8.2.3 Reference clock . 15
8.2.4 Synchronization protocol . 15
8.3 Attribute definitions . 15
8.3.1 Clock Adjustment Interval . 15
8.3.2 Clock Drift. 15
8.3.3 Clock Estimated Error. 15
8.3.4 Clock Event Code. 15
8.3.5 Clock Event Counter . 15
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ISO/IEC 10164-20 : 1999 (E) ©ISO/IEC
Page
8.3.6 Clock Event Time. 15
8.3.7 Clock ID . 15
8.3.8 Clock Maximum Error . 15
8.3.9 Clock Precision . 15
8.3.10 Clock Status. 15
8.3.11 Clock Stratum. 15
8.3.12 Clock Value. 16
8.3.13 Leap Second Count . 16
8.3.14 Leap Second Indication. 16
8.3.15 Local Clock Address . 16
8.3.16 Peer Clock Addresses. 16
8.3.17 Reference Clock Type. 16
8.3.18 Synchronization Protocol ID . 16
8.3.19 Synchronization Protocol Type . 16
8.3.20 Synchronization Source Address. 16
8.3.21 Synchronized Clock . 16
8.3.22 Synchronizing Clock . 16
8.4 Action definitions. 16
8.4.1 Clock reset. 16
8.4.2 Leap second. 16
8.4.3 Protocol reset. 16
8.5 Name binding definitions . 17
8.5.1 Clock Source – System. 17
8.5.2 Synchronization Protocol – System. 17
9 Service definitions . 17
9.1 PT-CREATE service . 17
9.2 PT-DELETE service. 17
9.3 PT-SET service . 17
9.4 PT-GET service. 17
9.5 State Change service . 17
9.6 Clock Reset service . 18
9.7 Leap Second service. 18
9.8 Protocol Reset service . 18
10 Functional units . 20
11 Protocol. 20
11.1 Elements of procedure. 20
11.1.1 Clock reset procedure. 20
11.1.2 Leap second procedure. 20
11.1.3 Protocol reset procedure. 21
11.2 Abstract syntax. 21
11.2.1 Objects. 21
11.2.2 Attributes. 22
11.2.3 Actions . 22
11.2.4 Name bindings. 22
11.3 Negotiation of functional units. 23
12 Relationships with other functions . 23
13 Conformance . 23
13.1 Static conformance. 23
13.2 Dynamic conformance . 23
13.3 Management implementation conformance statement requirements. 23
Annex A – Definition of Time Management Information . 24
A.1 Managed object classes . 24
A.1.1 clockSource . 24
A.1.2 localClock. 25
A.1.3 referenceClock . 25
A.1.4 synchronizationProtocol.25
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©ISO/IEC ISO/IEC 10164-20 : 1999 (E)
Page
A.2 Attribute definitions . 26
A.2.1 clockAdjustmentInterval . 26
A.2.2 clockDrift . 26
A.2.3 clockEstimatedError. 26
A.2.4 clockEventCode . 26
A.2.5 clockEventCounter . 26
A.2.6 clockEventTime. 26
A.2.7 clockID. 27
A.2.8 clockMaximumError . 27
A.2.9 clockPrecision . 27
A.2.10 clockStatus . 27
A.2.11 clockStratum. 27
A.2.12 clockValue. 27
A.2.13 leapSecondCount. 28
A.2.14 leapSecondIndication . 28
A.2.15 localClockAddress . 28
A.2.16 peerClockAddresses . 28
A.2.17 referenceClockType . 28
A.2.18 synchronizationProtocolID. 28
A.2.19 synchronizationProtocolType. 29
A.2.20 synchronizationSourceAddress . 29
A.2.21 synchronizedClock . 29
A.2.22 synchronizingClocks . 29
A.3 Action definitions. 29
A.3.1 clockReset . 29
A.3.2 leapSecond . 29
A.3.3 protocolReset. 30
A.4 Name binding definitions . 30
A.4.1 clockSource-system. 30
A.4.2 synchronizationProtocol-system. 30
A.5 ASN.1 definition module for management information. 30
A.6 ASN.1 definition module for time representation . 34
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ISO/IEC 10164-20:1999(E) ©ISO/IEC
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members
of ISO or IEC participate in the development of International Standards through technical committees
established by the respective organization to deal with particular fields of technical activity. ISO and IEC
technical committees collaborate in fields of mutual interest. Other international organizations,
governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
In the field of information technology, ISO and IEC have established a joint technical committee,
ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to
national bodies for voting. Publication as an International Standard requires approval by at least 75 % of
the national bodies casting a vote.
International Standard ISO/IEC 10164-20 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 33, Distributed application services, in collaboration with
ITU-T. The identical text is published as ITU-T Recommendation X.743.
ISO/IEC 10164 consists of the following parts, under the general title Information technology — Open
Systems Interconnection — Systems Management:
� Part 1: Object management function
� Part 2: State management function
� Part 3: Attributes for representing relationships
� Part 4: Alarm reporting function
� Part 5: Event report management function
� Part 6: Log control function
� Part 7: Security alarm reporting function
� Part 8: Security audit trail function
� Part 9: Objects and attributes for access control
� Part 10: Usage metering function for accounting purposes
� Part 11: Metric objects and attributes
� Part 12: Test management function
� Part 13: Summarization function
� Part 14: Confidence and diagnostic test categories
� Part 15: Scheduling function
� Part 16: Management knowledge management function
� Part 17: Change over function
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©ISO/IEC ISO/IEC 10164-20:1999(E)
� Part 18: Software management function
� Part 19: Management domain and management policy management functions
� Part 20: Time management function
� Part 21: Command sequencer for Systems Management
� Part 22: Response time monitoring function
Annexes A, B, D and F to G form a normative part of this part of ISO/IEC 10164. Annexes C, H and I are
for information only.
vii

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ISO/IEC 10164-20 : 1999 (E) ©ISO/IEC
Introduction
ITU-T Rec. X.700 series | ISO/IEC 10164 is a Series of Recommendations | International Standards developed according
to ITU-T Rec X.200 | ISO/IEC 7498-1 and ITU-T Rec. X.700 | ISO/IEC 7498-4. ITU-T Rec. X.700 series | ISO/IEC
10164 is related to the following International Standards:
– CCITT X.710 | ISO/IEC 9595:1990, Information technology – Open System Interconnection – Common
management information service definition;
– CCITT X.711 and CCITT X.712 | ISO/IEC 9596:1990, Information technology – Open System
Interconnection – Common management information protocol specification;
– CCITT X.701 | ISO/IEC 10040:1992, Information technology – Open Systems Interconnection – Systems
management overview;
– CCITT Recs. X.730, X.740 series and ITU-T Rec. X.750 series | ISO/IEC 10064:1992, Information
technology – Open Systems Interconnection – Systems Management.
OSI management standardization inevitably involves coordinated work by a number of standards bodies. ITU-T SG 7
and ISO/IEC JTC 1 SC 21/WG 4 are jointly responsible for the development of Recommendations | International
Standards that describe the architecture for OSI managemnt, the services, protocols, and functions that are used for
systems management, and the structure of management information. Other working groups, in ITU-T, ISO/IEC JTC 1
SC 21, ISO/IEC JTC 1 SC 6 and elsewhere, are responsible for the development of Recommendations | International
Standards that describe the management aspects of particular layers of the OSI Basic Reference Model; these may
describe (N)-layer management protocols, management aspects of (N)-layer operation, and managed objects that provide
a "management view" of aspects of the layer operation and are visible to systems management.
viii

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ISO/IEC 10164-20 : 1999 (E)
INTERNATIONAL STANDARD
ISO/IEC 10164-20 : 1999 (E)
ITU-T Rec. X.743 (1998 E)
ITU-T RECOMMENDATION
INFORMATION TECHNOLOGY – OPEN SYSTEMS INTERCONNECTION –
SYSTEMS MANAGEMENT: TIME MANAGEMENT FUNCTION
1 Scope
This Recommendation | International Standard defines a Systems Management Function that may be used by an
application process in a centralized or decentralized management environment to interact for the purpose of systems
management, as defined by ITU-T Rec. X.200 | ISO/IEC 7498-1. This Recommendation | International Standard defines
a function which consists of generic definitions, services, and functional units. This function is positioned in the
application layer of ITU-T Rec.X.200 | ISO/IEC 7498-1 and is defined according to the model provided by ISO 9545.
The role of systems management functions is described by CCITT Rec. X.701 | ISO /IEC 10040.
This Recommendation | International Standard:
– defines a service for the management of clocks for use by OSI management and available for use by OSI
applications and others;
– establishes user requirements for this Recommendation | International Standard;
– establishes a time management function model, addressing the components of a generic time service
involving communication between systems, that relates the service and generic definitions provided by
this function to the user requirements;
– defines generic object classes, attribute types, operation types, notification types, and parameters
documented in accordance with CCITT Rec. X.722 | ISO/IEC 10165-4;
– specifies compliance requirements placed on other standards that make use of these generic definitions;
– defines the services provided by the function;
– specifies the management protocol that is necessary in order to provide the services;
– defines the relationship between these services and systems management operations and notifications;
– specifies the abstract syntax necessary to identify and negotiate the function unit in the protocol;
– defines relationships with other systems management functions;
– specifies conformance requirements to be met by implementation of this Recommendation | International
Standard;
– identifies time synchronization protocols.
This Recommendation | International Standard does not:
– address the provision of time information within a local system;
– define the nature of any implementation intended to provide the Time Management Function;
– specify the manner in which management is accomplished by the user of the Time Management Function;
– define the nature of any interaction which results in the use of the Time Management Function;
– specify the services necessary for the establishment, use, and normal or abnormal release of a
management association.
2 Normative references
The following Recommendations and International Standards contain provisions which, through reference in this text,
constitute provisions of this Recommendation | International Standard. At the time of publication, the editions indicated
were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this
Recommendation | International Standard are encouraged to investigate the possibility of applying the most recent
ITU-T Rec. X.743 (1998 E) 1

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ISO/IEC 10164-20 : 1999 (E)
edition of the Recommendations and International Standards listed below. Members of IEC and ISO maintain registers
of currently valid International Standards. The Telecommunications Standardizations Bureau of the ITU maintains a list
of currently valid ITU-T Recommendations.
2.1 Identical Recommendations | International Standards
– ITU-T Recommendation X.210 (1993) | ISO/IEC 10731:1994, Information technology – Open Systems
Interconnection – Basic Reference Model – Conventions for the definition of OSI services.
– CCITT Recommendation X.701 (1992) | ISO/IEC 10040:1992, Information technology – Open Systems
1)
Interconnection – Systems management overview .
– CCITT Recommendation X.720 (1992) | ISO/IEC 10165-1:1993, Information technology – Open Systems
Interconnection – Structure of management information: Management Information Model.
– CCITT Recommendation X.721 (1992) | ISO/IEC 10165-2:1992, Information technology – Open Systems
Interconnection – Structure of management information: Definition of management information.
– CCITT Recommendation X.722 (1992) | ISO/IEC 10165-4:1992, Information technology – Open Systems
Interconnection – Structure of management information: Guidelines for the definition of managed
objects.
– ITU-T Recommendation X.723 (1993) | ISO/IEC 10165-5:1994, Information technology – Open Systems
Interconnection – Structure of management information: Generic management information.
– ITU-T Recommendation X.724 (1996) | ISO/IEC 10165-6:1997, Information technology – Open Systems
Interconnection – Structure of management information: Requirements and guidelines for implementation
conformance statement proformas associated with OSI management.
– CCITT Recommendation X.730 (1992) | ISO/IEC 10164-1:1993, Information technology – Open Systems
Interconnection – Systems Management: Object management function.
– CCITT Recommendation X.731 (1992) | ISO/IEC 10164-2:1993, Information technology – Open Systems
Interco
...

NORME ISO/CEI
INTERNATIONALE 10164-20
Première édition
1999-06-01
Technologies de l'information —
Interconnexion de systèmes ouverts
(OSI) — Gestion-systèmes: Fonctions de
gestion du temps
Information technology — Open Systems Interconnection — Systems
Management: Time management function
Numéro de référence
ISO/CEI 10164-20:1999(F)

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ISO/CEI 10164-20:1999(F)
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ISO/CEI 10164-20:1998(F) ©ISO/CEI
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