Target: The Access & Transport Architecture (ATA) Work Area maintains the primary architectural work of the Broadband Forum. The group delivers scalable, dynamic, and flexible architectures to support highly resilient connectivity for the next generation of responsive services and applications. ATA’s focus includes specifying frameworks and real-time tools to deliver dependable connectivity and service performance.
Progress: The ATA Work Area published ‘Broadband Service Metrics’ TR-499 which identifies metrics and KPIs that impact service delivery and ‘Maximum IP-Layer Capacity Metric’ TR-471 Issue 4, updated for Multi-flow and Multi-Server testing.
The ‘Application of L4S to Broadband Networks’ WT-519 continues to move forward at pace, defining how to implement L4S capability into a broadband network. The second joint meeting with WWC took place during the Fall meeting, building on the successful first meeting that had insightful presentations from CableLabs and Nokia introducing and explaining the details of the project. WT-519 will allow broadband service providers to offer services that can support the requirements of latency sensitive applications at the same time as throughput sensitive applications.
Multi-Service Disaggregated BNG WT-459 Issue 3 and WT-459.2 Issue 2 were both sent to Final Ballot by the AA Project Stream. The latest version of WT-459i3 offers updated QoS and Access Control List (ACL) capabilities, with new use cases and call flows. Additionally, it introduces several key enhancements including improved resilience with Subscriber Groups (SGRP) for IP prefix management, and optimized subscriber management with better session state handling and AAA functions. Even more features and capabilities are planned in the upcoming Issue 4.
More widely in the AA Project Stream, work continues on ‘Security Considerations for IPv6 Broadband Networks’ WT-515, which aims to provide development considerations and enhance IPv6. The work area has also continued to make progress on the architecture of ‘Subscriber Session Steering’ WT-474, where there were great discussions on the lessons learned from the BBF Innovation Demos, as well as working through important updates on resilience and QoS.
In the PEAT Project Stream, our new project ‘Time to First Byte’ WT-518 has now been expanded to ‘Time to Event’ to enable a standard approach for a wider range of measurements. Work continued on In-Situ OAM, multicast measurements and measurement formats for the QED project (452 document series), which will enable greater insights into latency across the broadband network.
For more information on ATA Work Area’s ongoing work, visit: https://wiki.broadband-forum.org/display/BBF/Access+and+Transport+Architecture.