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Flexibility, Agility, and Host of New Network Features Delivered by Latest Broadband Forum Specification

FREMONT, Calif.–(BUSINESS WIRE)–More stable networks, greater interoperability, and cost savings for operators will become possible thanks to the latest technical report published today by Broadband Forum. The second issue of Technical Report-459 will enable improved resiliency, scalability, and faster deployment times, which will give end-users a more reliable and more consistent service.

“TR-459 Issue 2 includes an additional layer of flexibility to manage subscriber resiliency, simplifying operations and streamlining provisioning and maintenance,” said Jonathan Newton, Co-Director of the Access and Transport Architecture Work Area at Broadband Forum from Vodafone.

“These characteristics are all the more critical in a post-COVID world in which more people are using their home broadband access services to manage their lives, including working and shopping online,” added Mr Newton.

Any faults that can cause network outages can be navigated around as the new specification enables the brain of the network (known as the Control Plane, responsible for managing interactions with the customer home router) to intelligently determine whether a switchover to a new User Plane is needed. The User Plane carries network traffic and enforces policies such as Quality of Service (QoS).

“The latest release of the TR-459 standard will continue to drive standards-based interoperability between vendors, with Broadband Forum simplifying network transformation and ensuring more agility and flexibility for broadband operators,” said Craig Thomas, Vice President Strategic Marketing and Business Development at Broadband Forum. “Our work on a Multi-Service Disaggregated Broadband Network Gateway (DBNG) continues to make it easier to deliver fixed broadband services quickly to new and existing customers as the industry continues to transition and offers a migration path from legacy infrastructures to a future agile cloud native approach.”

Standardization of the Control and User Plane Separation (CUPS) for a Multi-Service DBNG enables the Control Plane from one vendor to control and manage the User Plane from another vendor. This builds a more diverse supply chain with a greater choice of Control and User Planes from different vendors leveraging the TR-459 standard.

Broadband Forum members showcased the important capabilities enabled by TR-459 Issue 2 as part of the CloudCO Demonstration at Network X 2022. The demo highlighted Subscriber Group Resiliency and switchover, and DBNG-User Plane traffic steering. The network monitored the subscriber traffic SLAs and when the SLAs were not being met, switched the subscribers to the backup DBNG-User Plane. Subscriber Group Resiliency minimizes network outages during any network faults.

Within the network, the BNG is the portal through which subscribers gain access to the internet, and traditionally, operators have had to purchase a second BNG to scale up, sometimes not using all the available Control Plane capacity. But disaggregation ensures operational simplicity by centralizing the Control Plane, negating the need for Control Planes to be set up for each BNG introduced.

The global TR-459 standard was first trialed by Vodafone, Benu Networks, Casa Systems, Cisco, and Nokia, in September 2021 at test labs across Europe, the United States, and Asia-Pacific. In the trial, the companies were able to validate multi-vendor interoperability for a disaggregated BNG system with the core control functions of the gateway, such as authenticating a user and increasing bandwidth to support streaming services, separated and managed in the cloud.

In addition to the benefits noted above, TR-459 Issue 2 also defines key functions, which synergize the disaggregation of Wireless-Wireline Convergence being defined within Broadband Forum. For more information, please contact info@broadband-forum.org.

Download TR-459 Issue 2 ‘Multi-Service Disaggregated BNG with CUPS. Reference Architecture, Deployment Models, interface, and Protocol Specifications’ and MR-459.4 ‘Multi-service Disaggregated BNG New Features’.

For more information about Broadband Forum, visit: https://www.broadband-forum.org/.

About the Broadband Forum

Broadband Forum is the communications industry’s leading open standards development organization focused on accelerating broadband innovation, standards, and ecosystem development. Our members’ passion – delivering on the promise of broadband by enabling smarter and faster broadband networks and a thriving broadband ecosystem.

Broadband Forum is an open, non-profit industry organization composed of the industry’s leading broadband operators, vendors, thought leaders who are shaping the future of broadband, and observers who closely track our progress. Its work to date has been the foundation for broadband’s global proliferation and innovation. For example, the Forum’s flagship TR-069 CPE WAN Management Protocol has nearly 1 billion installations worldwide.

Broadband Forum’s projects span across 5G, Connected Home, Cloud, and Access. Its working groups collaborate to define best practices for global networks, enable new revenue-generating service and content delivery, establish technology migration strategies, and engineer critical device, service & development management tools in the home and business IP networking infrastructure. We develop multi-service broadband packet networking specifications addressing architecture, device and service management, software data models, interoperability and certification in the broadband market.

Our free technical reports and white papers can be found at https://www.broadband-forum.org/.

Follow us on Twitter @Broadband_Forum and LinkedIn.


Josh Wright


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