ISO/IEC 10164-20-1999 信息技术 开放系统互连 系统管理:时间管理功能

标准号：ISO/IEC 10164-20-1999
中文标准名称：信息技术 开放系统互连 系统管理:时间管理功能
英文标准名称：Information technology - Open Systems Interconnection - Systems management: Time management function
标准类型：L79
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：L79
国际标准分类号：35.100.70
适用范围：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 IISO/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.