Overview
ISO/IEC/IEEE 8802-1DC:2025 - Part 1DC: Quality of service provision by network systems is a first-edition international standard that specifies procedures and managed objects for providing Quality of Service (QoS) features defined in IEEE Std 802.1Q. Published as a joint ISO/IEC/IEEE document (ISO/IEC/IEEE 8802-1DC:2025), it documents how QoS functions such as Per‑Stream Filtering and Policing, queuing, transmission selection, stream control, and frame preemption are managed in a network system that is not a Bridge.
Key topics and requirements
The standard focuses on management and procedural definitions rather than implementation code. Key technical topics include:
- Per‑Stream Filtering and Policing (PSFP) - managed objects and procedures for per‑flow traffic control.
- Queuing and Transmission Selection - definitions for queue handling and how frames are selected for transmission to meet priority and latency requirements.
- Stream Control - mechanisms to control the state and lifecycle of time‑sensitive or priority streams.
- Frame Preemption - managed support for interrupting low‑priority frame transmission to serve higher‑priority traffic.
- Time‑sensitive networking (TSN) features referenced by name: scheduled traffic, asynchronous traffic shaping, credit‑based shaper, cyclic queuing and forwarding (CQF).
- Managed objects and procedures to enable consistent QoS configuration and monitoring across non‑bridge network systems.
Practical applications and who uses it
This standard is intended to guide designers, integrators, and operators who need standardized QoS management across local and metropolitan area networks:
- Network equipment vendors implementing QoS management for switches, routers, and network systems that are not Bridges.
- System integrators and VLAN/Virtual Bridged Network designers deploying Time‑Sensitive Networking (TSN) or real‑time applications.
- IT and network operations teams standardizing QoS policies for LAN and metropolitan area networks (MAN).
- Enterprise, industrial automation, and professional AV environments that require deterministic or prioritized traffic handling.
Practical benefits include improved interoperability of QoS features, consistent management models for per‑stream control, and clearer mapping of TSN QoS primitives (e.g., PSFP, CQF, credit‑based shaper) to network system management.
Related standards
- IEEE Std 802.1Q (VLANs, bridging and many QoS primitives referenced)
- IEEE 802.1DC / IEEE family documents on TSN and QoS
- ISO/IEC/IEEE 8802 series (other Parts covering LAN/MAN requirements)
Keywords: ISO/IEC/IEEE 8802-1DC:2025, quality of service, QoS, Per‑Stream Filtering and Policing, queuing, transmission selection, frame preemption, Time‑Sensitive Networking, TSN, IEEE 802.1Q, LAN, VLAN, CQF, credit‑based shaper.