ISO/IEC 10164-20:1999

Information technology — Open Systems Interconnection — Systems Management: Time management function — Part 20: ISO/IEC 10164-20:1999

Publication date:   Jun 10, 1999

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 OSIapplications 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.