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: Progressed Straw Ballot comment resolution on Amendment 8 of TR-383; agreed on the overall structure and functions of the YANG model for Multimedia over Coax Alliance (MoCA) Access Nodes; agreed on the first YANG model for WT-513 addressing the scale of managing large access network elements.
Comment resolution of Amendment 8 of the group’s flagship project, TR-383 ‘Common YANG Modules for Access Networks’ is ongoing. 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 support for ITU-T Ethernet OAM, IP hosts, Subscriber identification and Internet Protocol Flow Information Export (IPFIX). The target is to publish Amendment 8 by the Fall Member Meeting in November 2024.
The group also received feedback from vendors and operators identifying gaps in the work area’s current TR-383 models relative to real world applications.
The first YANG model inputs have been agreed upon for WT-513 ‘Access Node Management at Scale’. This project addresses the use of templates with the objective to improve the overall scalability of the YANG models.
For the long-term maintenance of YANG models, several new guidelines have been approved for inclusion in OD-360 ‘BBF YANG Best Current Practices’. These Best Practices are being used in automated tooling to improve quality and harmonize the YANG modules published by the Broadband Forum.
The group agreed on the overall structure and functions of the YANG model for the Multimedia over Coax Alliance (MoCA) Access based architecture, as part of WT-496 ‘YANG Modules for MoCA Access 2.5 Interface’. The first draft of the YANG models is expected imminently. This model extends BBF YANG management support to nodes offering triple play services over existing coax cables within people’s homes.
The work area 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.
The YANG model for VoIP will further progress after the Summer Member Meeting through interim calls. This model extends BBF YANG management support to nodes offering traditional POTS voice services over a packet-based network. The goal is to publish the first version by mid-2025.
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.