Overview
ISO/IEC 10164-17:1996 - Information technology - Open Systems Interconnection (OSI) - Systems Management: Change over function - defines a systems management function, positioned at the OSI application layer, to support controlled switching between a primary entity and its one-to-one backup. The standard establishes user requirements, models, services, managed relationship and object classes, protocol elements, and conformance rules needed to implement a change over function for systems management in centralized or decentralized environments.
Key topics and technical requirements
- Scope and purpose
- Defines services to manage one-to-one back-up relationships (change over and change back).
- Provides generic definitions and models relating services to user requirements.
- Service definitions
- Specifies the Change over request service and Change back request service as core management services.
- Management information
- Defines managed relationship classes, managed object classes, attributes and parameters required to represent and control change over relationships.
- Includes annexes with management information and abstract syntax definitions.
- Protocol and procedure
- Specifies protocol elements and elements of procedure required to negotiate and execute the change over functional unit.
- Covers negotiation of the functional unit and procedural steps for operation.
- Conformance
- Specifies static and dynamic conformance requirements and the Management Implementation Conformance Statement (MICS) proforma specific to this function.
- Includes proformas (MCS, MIS, MOCS, MRCS, MIDS(action)) in annexes for documentation and testing.
- Relationship to OSI management framework
- Aligned with ITU‑T/ISO OSI management recommendations (e.g., X.700/X.207) and structured according to management information model conventions.
Applications and who should use it
- Primary users
- Network and systems management architects, designers of high-availability systems, implementers of OSI-based management platforms, and standardization/test teams.
- Practical applications
- Enabling controlled failover and rollback between a primary and backup system in distributed management environments.
- Providing a standardized management interface and protocol for automated change over operations, auditing, and conformance testing.
- Integrating with other OSI management functions (alarm, log, state, scheduling) to provide coordinated high-availability management.
- Value
- Supports interoperability, predictable failover procedures, and clear documentation for conformance and testing across vendors.
Related standards
- ITU‑T Rec. X.200 / ISO/IEC 7498-1 (Basic OSI model)
- ITU‑T Rec. X.207 / ISO/IEC 9545 (Application layer structure)
- CCITT Rec. X.700 / ISO/IEC 7498-4 (Systems management overview)
- ISO/IEC 10165 series (Structure of management information) - referenced for managed object and relationship definitions
Keywords: ISO/IEC 10164-17:1996, change over function, systems management, OSI, managed objects, managed relationships, backup relationships, conformance, management protocol.
