Overview
ISO/IEC/IEEE 8802-1BA:2023 (Part 1BA) - also published as IEEE Std 802.1BA-2021 - defines profiles for Audio Video Bridging (AVB) systems to support transport of time‑sensitive audio and/or video over bridged Local and Metropolitan Area Networks (LANs/MANs). The standard specifies which features, options, configurations, defaults, protocols and procedures of bridges, stations and LANs are required to build networks capable of reliably transporting time‑sensitive A/V data streams.
Key topics
- Profiles and scope: Selection of interoperable features and options needed for AVB-capable networks (bridges, stations, LANs).
- Configuration and defaults: Recommended defaults and configuration rules that ensure deterministic delivery of audio/video streams.
- Protocol and procedure requirements: Defined protocols and operational procedures for end-to-end handling of time‑sensitive traffic.
- Time-sensitive networking (TSN) alignment: Focus on deterministic delivery and low-latency forwarding for synchronized A/V streams.
- Bridged LAN behavior: Requirements for MAC bridges and VLAN-based segmentation relevant to AVB deployments.
- Interoperability: Profiles intended to ensure predictable interaction between compliant devices from different vendors.
Applications
This standard is targeted at anyone designing, deploying or manufacturing networked audio/video systems where deterministic timing and low latency are required. Typical practical uses include:
- Building bridged LANs for professional AV distribution and media production.
- Designing networked audio/video endpoints and switch/bridge equipment with AVB support.
- Systems engineering for live event networks, broadcast studios, and AV-over-IP installations that require synchronized audio/video streams.
- Network architects implementing VLANs and QoS policies to support time‑sensitive traffic.
Who should use it
- Network engineers and AV system integrators who need a standards-based approach to time‑sensitive media transport.
- Device manufacturers (bridges, switches, stations) implementing AVB/TSN features for interoperable products.
- Standards and compliance teams seeking profiles and configuration guidance for testing and certification.
Related standards
- IEEE 802.1 family (bridging and LAN/MAN standards)
- Time-Sensitive Networking (TSN) specifications within IEEE 802.1 series
- ISO/IEC and IEC documents on LAN/MAN interoperability and directives
ISO/IEC/IEEE 8802-1BA:2023 provides the practical, interoperable profiles needed to deploy AVB-enabled networks-helpful for assuring low-latency, synchronized audio/video delivery across bridged LANs.