Work Area Goals and Scope

Architecture and Migration Work Area

The Architecture and Migration Work Area defined the architecture of Broadband Forum’s work. This identifies and documents the key functionalities and relationships between entities to facilitate the transition of networks to encompass new practices such as virtualization while documenting the key functionalities that need to be brought forward to enable a seamless evolution path. A critical element of the work is the long term support of existing and physical and statically management network elements alongside agile and virtualized functions in what effectively will be a stable hybrid network. This enables seamless migration based on market acceptance on new technologies, protection of existing infrastructure investment and normal spread of deployment in different territories.

Business Impact: The work creates the necessary foundation for all of the work of the Broadband Forum. It underpins all the new value-added services and application delivery for fixed and mobile access networks, home and business that can now be deployed at the pace of each market. Co-existence of physical and virtualized solutions and from static and dynamic services will create a hybrid broadband network mitigating the risks to existing revenue and enabling market-paced migration.

Scope: The Architecture and Migration working area maintains the primary architectural models for the work of the Broadband Forum. The models reflect the control, management and data plane aspects of BBF defined architectures. The models are augmented to subsume new industry directions such as SDN and NFV while carrying forward key aspects of broadband as currently deployed. Th products of the work area provide the BBF with a collective and consistent language and algebra to help drive overall consistency of product.


Broadband User Services Work Area

The Broadband User Services Work Area provides the broadband industry with technical specifications, implementation guides, reference implementations, test plans, and marketing white papers for the deployment, management, and consumption of services by the broadband end user. This Work Area represents the end user perspective when incorporating into the Broadband Forum architecture.

Business Impact: The Broadband User Services Work Area develops specifications and publications to create a new kind of the Broadband experience for the end user and provides new means for service providers and application developers to monetize the broadband user’s connection. This ranges from on-demand performance assured business and entertainment services, IoT services related to energy, security, environment, etc. to user control of what can become the data center in the home and small business managed and control with zero-touch diagnostics. All of which opens up large markets and profitable business models.


  • Develop and evolve the TR-069 CPE WAN Management Protocol and a Universal Service Platform (USP) to cover existing use cases, machine-to-machine/IoT use cases, and the virtualization of broadband user services, prioritized by their potential business value
  • Develop and specify new information models to broaden the range of for which TR-069 and USP can be used
  • Develop requirements for broadband user devices and associated software
  • Develop test plans and training programs for Work Area protocols and requirements
  • Develop marketing white papers that supplement Work Area protocols and requirements


Fiber Access Networks Work Area

To define the requirements for deploying Broadband Forum network architectures in fiber access technologies so as to accelerate deployments and ensuring interoperability.

Business Impact: This Work Area’s focus along with the Physical Layer Transmission area is on both cost savings and acceleration of time to market. Standardized interoperability and certification create a trusted base of equipment and services without which significant investments in time and resources can cause years of delay and in-service failures that impact revenue and credibility. Interoperability provides invaluable intelligence as feedback to both developers and implementers of new products and services. As the move to virtualized devices with non-deterministic functions and performance becomes a reality, the need for interoperability testing and reference configurations will become critical.

Scope: Definition of new test suites used to verify the interoperability of the fiber access specific portions of the network. These new projects include:

  • Architecture & Technical Requirements for PON-based Mobile Backhaul networks
  • Multi-wavelength PON Inter-Channel-Termination Protocol Specification
  • Maintenance of existing specifications within the work scope


Physical Layer Transmission

The Physical Layer Transmission Work Area provides test plans, technical documentation, and marketing papers to enable multi-vendor interoperability in deployments for both access and in-premises networks.

Business Impact: As with the Fiber Access Networks work area, the focus is on cost reduction and accelerating time to market. Standardized interoperability and certification create a trusted base of equipment and services avoiding large investments in time, repeated customized one-off and NxN testing that impact revenue and credibility. Interoperability provides invaluable intelligence as feedback to both developers and implementers of new products and services.As the move to open sourcing gains momentum the role of interoperability becomes every more necessary.


  • Definition of test plans for access network physical layer transmission technologies (such as VDSL2 and and Reverse Power Feeding technologies
  • Definition of test plans for in-premises network physical layer transmission technologies such as power line communications
  • Creation of best practice documentation for advanced features, such as Upstream Power Back-off, Self Install, and Vectoring


Routing and Transport

To produce industry agreed specifications of the routing and transport network infrastructure for applications such as mobile backhaul/transport infrastructure, data center interconnect, video distribution etc. This work typically being in the form of architecture, equipment requirements, interoperability and conformance test plans, implementation guidance and education materials.

Business Impact: This work accelerates industry adoption of new technology and deployment of new services and infrastructure. The work includes the introduction of and migration to SDN and virtualization of the network infrastructure where commercially viable.

Scope: Control, management and data plane for the IP layer down to the physical layers, including time and synchronization, OAM, routing, resiliency, scalability, security, virtualization of the transport infrastructure, and enablement of software driven networking. Current project work includes:

  • Optical Packet Evolution
  • Cloud Interconnect
  • Mobile Transport and Routing


SDN and NFV Work Area

This Work Area focuses on the introduction of Software Defined Networking (SDN) and Network Functions Virtualization (NFV), including migration and coexistence of physical and virtual elements, into the broadband network.

Business Impact: The migration to SDN and NFV in the broadband network facilitates agile deployment of new customized distributed broadband services and applications. This enables new revenues and provider differentiation while managing OpEx both in the access network and in single and multi-tenant residential and business locations.

Scope: The scope includes migration to and deployment of SDN- and NFV-enabled implementations across all aspects of the broadband network. The architecture is based on the initial definition of and extensions to the framework for virtualization in the broadband network.


Wireline-Wireless Convergence

This Work Area addresses the increasing synergy between wireless access technologies and wired access technologies, as well as that of wireless networking and wireline networking functions. Activities examine scenarios where wireless access technologies play a role or mobile networking is involved in the wireline network.

Business Impact: The principle impact on the market addresses the ability to create seamless connectivity to either wireline or wireless access connectivity from single or multi-tenant business and residential locations that will radically alter users’ network experience. This is the next step in the evolution from the automatic connectivity to available Wi-Fi networks and will become the norm with the advent of 5G.

Scope: Topics in this area within scope are Wi-Fi as last mile for broadband access, small cells, hybrid (dual access) access, functions between wired and wireless networks that may be instantiated as a common element, wireline and wireless network interworking and convergence as the service and subscriber level. The virtualization aspect of identified common functions will enable future study in the area of VNFs and NFVI destined for mobile and fixed networks and next phase of FMC evolution.


Common YANG Work Area

The Common YANG Project Stream has two main areas of responsibility:

  • Core YANG support: BBF YANG Best Current Practices (OD-360), BBF-wide YANG processes, procedures and tools
  • Common YANG modules (WT-383) that are applicable to multiple Work Areas and/or involve expertise from multiple Work Areas

The Project Stream is also responsible for identifying YANG work in other SDOs that could or should be used by BBF YANG projects, and will work directly with such SDOs as and when appropriate in order to assist in meeting BBF requirements and timescales.