Target: Specify YANG modules that are applicable to multiple work areas, provide support to those same work areas for their specific YANG projects, and maintain YANG Best Current Practices, processes, procedures, and tools.
Progress: The Common YANG Work Area is playing a supporting role for the SDN/NFV and FAN Work Areas, with a view that YANG models will be incubated in a series of ongoing projects. The work area continues to review new functionalities targeting future amendments of TR-383.
Outcomes: Publication of Amendment 8 of TR-383; agreed on the scope of Amendment 9; agreed to refactor the Layer 2 forwarding YANG model for use in templates defined in WT-513, addressing the scale of managing large access network elements.
Another milestone has been achieved with the publication of Amendment 8 of the group’s flagship project, TR-383 ‘Common YANG Modules for Access Networks’. This publication sits at the heart of Common YANG’s output and allows copper- and fiber-based access nodes to be managed through NETCONF/YANG. The new amendment includes extensions to ITU-T Ethernet OAM, and support for IP hosts, Subscriber identification and Internet Protocol Flow Information Export (IPFIX). This allows large-scale bulk statistics collection, enabling network analysis using cloud-based platforms, providing opportunities for deep network learning.
The group agreed on the scope of the next Amendment 9 of TR-383. This amendment will bring the YANG model for VoIP, extending BBF YANG management support to nodes offering traditional voice services over a packet-based network. Alongside this, the amendment will add a range of improvements related to QoS, forwarding and transceiver management. The target is to publish Amendment 9 by the Summer Meeting in June 2025.
It was agreed to refactor the Layer 2 forwarding YANG model to ease its use as part of a template-based solution to be defined in WT-513, “Access Node Management at Scale”. This project targets improvement to the overall scalability of the YANG models.
Energy and Power Monitoring remain hot topics, with several contributions being discussed and the group agreeing on capturing the key requirements and reaching out to Broadband Service Providers, network operators, and other experts to define the future focus of the work.
Common YANG has played a key supportive role for other work areas aiming to develop and publish YANG models. To that end, sessions were held with the SDN/NFV and FAN Work Areas, reviewing items of common interest.
For an overview of the Common YANG Work Area’s current activities, please visit: https://wiki.broadband-forum.org/display/BBF/Common+YANG+Work+Area.