ISO/IEC/IEEE 8802-1Q:2024/Amd 39:2026

• Status: Published
• Publication Date: 23-Aug-2026
• ICS: 35.110 - Networking
• Technical Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Drafting Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Current Stage: 6060 - International Standard published
• Start Date: 24-Aug-2026
• Due Date: 22-Dec-2026
• Completion Date: 24-Aug-2026

• Amends: ISO/IEC/IEEE 8802-1Q:2024 - Telecommunications and exchange between information technology systems — Requirements for local and metropolitan area networks — Part 1Q: Bridges and bridged networks
• Effective Date: 07-Jan-2025

Overview

ISO/IEC/IEEE 8802-1Q:2024/Amd 39:2026 is an international standard amendment focusing on data models for managing network traffic shaping within local and metropolitan area networks (LAN/MAN). Titled "YANG Data Models for the Credit-Based Shaper," this amendment specifies YANG data models that support configuration and status reporting for the credit-based shaper algorithm in both bridges and end stations, as part of the IEEE 802.1Q family of standards.

Developed by ISO, IEC, and IEEE, this standard offers essential tools for network operators and equipment vendors seeking automation, interoperability, and advanced traffic management in modern network environments.

Key Topics

• YANG Data Models for Credit-Based Shaping
  The amendment introduces YANG modules that represent the management objects necessary for configuring and monitoring credit-based shaper algorithms. These models enable standardized management interfaces for both bridges and end stations.

• Augmentation of Existing Models
  The credit-based shaper model extends the Bridge Port model, enhancing manageability for devices implementing the IEEE 802.1Q traffic shaper mechanisms.

• Security Considerations
  The amendment highlights that the YANG modules include objects that, if improperly managed, may interfere with network stability. Operators are advised to control access to key configuration parameters to prevent accidental or malicious activity.

• Modular Integration
  Multiple YANG modules are defined, such as ieee802-dot1q-cbsa and ieee802-dot1q-cbsa-bridge, which can be incorporated into broader network management platforms.

Applications

Implementing the YANG data models described in ISO/IEC/IEEE 8802-1Q:2024/Amd 39:2026 provides several practical benefits:

• Automated Network Management
  These models enable automated configuration, monitoring, and adjustment of traffic shaping features, facilitating programmability in software-defined networks (SDN).

• Interoperability Across Vendors
  The standardized YANG modules ensure consistent management of credit-based shaper parameters, promoting multi-vendor compatibility within LAN and metropolitan network infrastructure.

• Enhanced Service Quality
  Applying the credit-based shaper algorithm allows for more predictable network performance by controlling traffic flows based on defined priorities and rates, particularly valuable in converged networks with mixed traffic types.

• Support for Time-Sensitive Networking (TSN)
  The models align closely with TSN requirements, enabling reliable, low-latency data transport, crucial for applications in industrial automation, audio/video bridging, and critical communications.

Related Standards

This amendment is part of the broader suite of IEEE 802.1Q standards, which define technical requirements and management protocols for bridges and bridged networks. Relevant related standards include:

• IEEE Std 802.1Q-2022 – The foundational bridging standard for LAN/MAN.
• IEEE Std 802.1Qcz-2023, 802.1Qcw-2023, 802.1Qcj-2023, and 802.1Qdj-2024 – Earlier amendments that address advanced network features like stream reservation and time-sensitive networking.
• YANG Data Modeling Standards – Provides foundational guidance on network device management using the YANG language.

For comprehensive network solutions, implementers should consult these related documents to ensure holistic and interoperable management of traffic shaping and quality of service across diverse network platforms.

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By leveraging the guidance in ISO/IEC/IEEE 8802-1Q:2024/Amd 39:2026, network engineers and product developers can enhance automation, visibility, and control in LAN and MAN environments, positioning their networks for current and future demands.