This standard provides a universal model for managing QoS across various network entities. It defines how QoS-related information flows between participants and describes the mechanisms used to monitor, negotiate, and enforce service levels.

: Tracking real-time performance and initiating corrective actions (renegotiation) if service levels drop below the agreed threshold. Implementation Mechanisms

The requested document, , refers to the international standard ISO/IEC 13236:1998 , which establishes the foundational quality of service (QoS) framework for Information Technology and Open Systems Interconnection (OSI). Purpose and Scope

: Divided into efficiency, maintainability, portability, and usability. QoS Management Phases

: Focuses on measurable factors like delay (latency), throughput (bandwidth), and jitter.

: Defines the probability of system or storage failure and the likelihood of communication disruption.