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Technical Committee Work in Progress

Technical Committee Mission: To establish common broadband related technical specifications to ensure network and management optimization

Technical Committee Chair:
Michael Fargano, CenturyLink
Technical Committee Vice-Chairs:
Frank Van der Putten, Nokia
Hongyu Li, Huawei Technologies

Members Only:

Technical Work Areas

[Architecture and Migration] [Broadband User Services] [Common YANG] [Fiber Access Networks]
[Fiber to the Distribution Point] [Innovation] [Physical Layer Transmission] [Routing and Transport]
[SDN and NFV] [Wireline-Wireless Convergence]

Architecture and Migration Work Area
Mission Statement:

The Architecture and Migration Work Area defines 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 new 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.


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. The products of the work area provide the BBF with a collective and consistent language and algebra to help drive overall consistency of product.

Work Area Directors:

David Thorne, BT

David Allan, Ericsson

Works in Progress:

Project Stream: Architecture Modeling
Project Stream Leader: Vacant
A Framework for Virtualization
The purpose of this working text is to establish a framework to permit the Broadband Forum to effectively reference and specify systems such that the deployment of NFV (as defined by the ETSI NFV ISG) in Broadband Forum specified networks is facilitated.
Performance Measurement from Customer Equipment to IP Edge
This project will extend Broadband Forum's OAM framework with architectural and nodal requirements to enable Customer Equipment to IP Edge service assurance of broadband subscribers, both for business and residential connections. The main business drivers for this work are:
  • Define standardized mechanisms for performance measurement (e.g. delay, jitter, loss) between network side of the RG/CPE and access side of the BNG/PE
  • Give service providers insight on how their access network is performing
  • Ability to use existing but not currently deployed tools
The BBF is in a unique position to give service providers the tools they need in this subject matter, defining a solution that allows measurement and exposure of RG/CPE to BNG/PE network performance and addresses the current gap.

SD-364: Impact analysis and requirements for 4K (UHD) Video Support
SD-365: Definition of an SDN Reference Model
SD-392: MSBN Management Framework

Project Stream: Broadband Assured Services
Project Stream Leader: Vacant
Broadband Assured IP Services Architecture
In Development.
Broadband Assured IP Services Technical Specification
In Development.
Project Stream: Migration
Project Stream Leader: Oliver Thorp, Sky plc
Broadband Network Gateway and Network Function Virtualization
Building on TR-101 and TR-178, WT-345 documents a set of architectures for broadband multi-service network, addressing infrastructures, topologies and deployment scenarios for Multi-Service Broadband Network Gateway (MS-BNG) with hierarchical instances realized as Virtualized Network Functions (VNF).

Starting from such architectural models WT-345 defines the specific requirements necessary to support the addressed infrastructures, topologies and deployment scenarios, in order to fulfill the business requirements defined in TR-144. The main changes introduced in the WT-345 architectures compared to the TR-101 and TR-178 models are:
  • - Implications of scale out
  • - OAM and other Operational aspects
  • - Traffic management and QoS
  • Broadband User Services Work Area
    Mission Statement:

    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
    Work Area Directors:

    John Blackford, Arris

    Jason Walls, QA Cafe

    Works in Progress:

    Project Stream: Alternate Management Path
    Project Stream Leader: Peter Silverman, ASSIA
    Alternate Management Path for Broadband
    This document describes a new method of managing broadband lines using an alternate data channel or path and particularly for diagnosing disconnections. For example, a smartphone can connect to a broadband modem or RG and access diagnostics data to troubleshoot a disconnected broadband line. This connection would be between the LAN side of the RG and the smartphone. The smartphone would then use an app or other system to relay this connection through the 3G/4G network back to a management server. Similarly, a neighboring WiFi connection or another data connection could be used instead of the smartphone relay. Re-configuration of the broadband modem or home network may also be performed over the alternate management path.
    Project Stream: Compliance Testing
    Project Stream Leader: Marion Dillon, UNH IOL
  • ID-069 Issue 2: TR-069 Conformance Test Plan
  • ID-106: CWMP Data Model Verification Test Plan
  • ID-181: CWMP Interoperability and Functionality Test Plan

  • OD-361: CWMP Certification Program Guidelines

  • Project Stream: CWMP
    Project Stream Leader:
    John Blackford, Arris
    CPE WAN Management Protocol
    This WT defines version 1.5 of the CPE WAN Management Protocol, incorporating items from the Issue List IL-069. It includes updates to the firmware management system, security updates, and updates to the XMPP connection request and notification mechanisms.
  • IL-069: TR-069 Proposed Changes

  • MD-353: Best Practices for Deploying TR-069 - White Paper

  • Project Stream: CWMP Data Model
    Project Stream Leader:
    William Lupton, Broadband Forum
    WT-140 Amendment 3
    TR-069 Data Model for Storage Service Enabled Devices
    WT-140 Amendment3, permits the remote management of Storage Service devices via CWMP as defined in TR-069 and TR-106. It covers the data model for describing a Storage Service device as well as rules regarding notifications on parameter value change. General use cases are also described including standard data model profiles that would typically be seen while remotely managing a device of this nature.
    WT-181 Issue 2 Amendment 12
    Device Data Model for TR-069
    In Development.
    WT-196 Issue 2 Corrigendum 3
    Femto Access Point Service Data Model
    In Development.
  • IL-106: TR-106 DM and DT Schema Proposed Changes
  • IL-157: Proposed TR-069 Data Model Objects and Parameters
  • IL-181: Device:2 Data Model and TR-181 Issue 2 Proposed Changes

  • SD-279: TR-069 Proxy Management Implementation Guidelines
  • SD-344: CWMP Root Data Model Transition Mechanisms

  • Project Stream: Device Requirements
    Project Stream Leader: Jean-Didier Ott, Orange
  • IL-124: TR-124 Issues List

  • Project Stream: Network Measurement
    Project Stream Leaders:
    Barbara Stark, AT&T
    Miodrag Djurica, KPN
    Tim Carey, Nokia
    Test Plan for 1905.1/1a
    In Development.
  • MD-363: Home Network Diagnostics Mechanisms and Best Practices - Whitepaper

  • SD-323: BBHome Work Items Related to WT-304
  • SD-333: Intra Customer Premises Network Measurements

  • Project Stream: Software Tools
    Project Stream Leaders:
    William Lupton, Broadband Forum
    Mark Tabry, Google
  • SD-354: New BBF CWMP Report Tool

  • OD-148: CWMP Index Page Configuration File
  • OD-290: BroadbandHome Publication Guidelines

  • Project Stream: User Services Platform - User Services Platform Project (PDF)
    Project Stream Leaders:
    Barbara Stark, AT&T
    Tim Spets, GreenWave Systems
    User Service Platform (USP)
    This document describes the architecture, protocol, and data model that builds an intelligent User Service Platform. It is targeted towards application developers, application service providers, CPE vendors, consumer electronics manufacturers, and broadband and mobile network providers who want to expand the value of the end users network connection and their connected devices.
      This document describes:
    • The overall architecture of USP Agents, Controllers, and service elements
    • The proxy mechanisms for addressing non-USP service elements
    • Requirements for the transport protocol used to handle USP messages, and defined bindings for specific protocols.
    • The various CUSP messages, their requirements, and expected behavior patterns, along with on-the-wire encoding of CUSP messages
    • The protocol requirements for discovery, end-to-end security, authentication, and authorization
    • An explanation of the data model and how it is used to enable USP, service elements, proxying, and object defined operations
    The objects necessary to implement USP are described in the Device:2 data model of the CPE WAN Management Protocol, (CWMP).
    Project Stream: Voice Service Data Model for CWMP
    Project Stream Leader: Jean-Didier Ott, Orange
  • IL-104: TR-104 Issues List

  • Project Stream: Assessment of xCONF for CPE Management
    Project Stream Leader: Barbara Stark, AT&T
  • SD-375: Analysis of NETCONF/RESTCONF for CPE management
  • SD-376: CWMP Data Model/YANG Translation Rules and Tools

  • Common YANG Project Stream

    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.

    Project Stream Leaders:

    William Lupton, Broadband Forum

    Michael Shaffer, Nokia

    Works in Progress:

    Common YANG
    In Development.
  • OD-360: Best Current Practices for developing YANG models

  • Fiber Access Networks Work Area
    Mission Statement:

    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.

    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
    Work Area Directors:

    Greg Bathrick, Calix Networks

    Wei Lin, Huawei Technologies

    Works in Progress:

    WT-142 Issue 3
    Framework for TR-069 enabled PON Devices
    In Development.
    ITU-T PON in the context of TR-178
    WT-280 focuses on GPON systems in an unbundled services environment that addresses requirements not covered by TR-156. TR-156 and WT-247 address basic L2 GPON systems. There are "more complex" types of ONT and Service Providers have more complex requirements that need a reference in BBF GPON framework. ITU standards already cover these more complex functionalities from an OMCI point of view. What is missing are the architectural/functional requirements.
    This document is intended to define a framework for remote management of CPE over various PON access technologies. TR-069 is the protocol of choice used by service providers worldwide for the remote management and configuration of many kinds of broadband CPE. The scope of this document is to detail the applicability to CPE having a PON WAN interface and in particular to clarify the relationship between different management protocols for example TR-069, NETCONF, and OMCI IEEE 802.3ah.

    The scope of this document addresses any PON device that is managed by different management protocols, for example, Single Family Units, Single Business Units, Multi-Dwelling Units, Multi-Tenant Units, and Distribution Point Units.
  • IL-280: WT-280 Issues List

  • Project Stream: Interoperability Test
    Project Stream Leader: Vincent Buchoux, LAN
    ID-247 Issue 4
    GPON & XG-PON1 ONU Conformance Test Plan
    In Development.
    Project Stream: NGPON2 Wavelength Management
    Project Stream Leader: Mark Wilson, Verizon
    Multi-wavelength PON Inter-Channel-Termination Protocol (ICTP) Specification
    The purpose of this Working Text is to specify a protocol that is executed between the OLT Channel Terminations and, based on the architecture and functional descriptions outlined in ITU-T Recommendation G.989.3, enables wavelength channel management within an NG-PON2 system.
    Project Stream: PON Based Mobile Backhaul
    Project Stream Leader: Robin Grindley, Broadcom
    Architecture & Technical Requirements for PON-based Mobile Backhaul networks

    A number of Broadband Forum Technical Reports are dedicated to the description of an Ethernet-based architecture optimized for multi-service PON networks and technical requirements for PON systems catering to both residential and business customers.

    Based on TR-221, this document extends the architecture and technical requirements to providing enhanced mobile backhaul functionality. These requirements cover system architecture, use cases, technical requirements as well as some implementation guideline, so as to for foster multi-vendor interoperability. The specifications in this document apply to both ITU-T and IEEE PON systems and focus on LTE and LTE advanced.

    Project Stream: PON Management
    Project Stream Leader: Vacant
    YANG model for management of ITU-T PON
    In Development.
    YANG Models for Management of PON ONUs
    In Development.
    NETCONF Management of PON ONUs Architecture Specification
    In Development.

    Fiber to the Distribution Point Work Area
    Mission Statement:

    To establish common related technical specification for FTTdp in order to ensure maximal equipment and management interoperability.

    Business Impact:

    The Fiber to the Distribution Point (FTTdp) network offers a number of new important benefits to operators and its customers. First, it allows deployment of FTTH ultra-fast broadband network without actually having to install fiber at the customer premises. This increases the service take-up rate and requires zero-touch provider provisioning with customer install, no rewiring and no truck roll. Secondly, it offers the opportunity to lower OpEx through reverse powering and remote connectivity reconfiguration. It opens up new opportunities to service multi-tenant/dwelling business and residential locations with different requirements. Finally, the ultra-fast broadband network opens up a new market for provisioning of high-value performance-assured applications and services. By developing specifications for architecture, management and interoperability, the FTTdp Work Area plays a key role in accelerating time to market.


    FTTdp access architecture, encompassing architectural, nodal functional and network management requirements for FTTdp access architectures, in order to drive interoperability and best practice. This also includes the specification of YANG management models for the Distribution Point Units (DPUs).

    Work Area Directors:

    Christopher Croot, BT

    Sven Ooghe, Nokia

    Works in Progress:

    Project Stream: Architecture and Requirements
    Project Stream Leaders:
    Dong Wei, Huawei Technologies
    Michael Shaffer, Nokia
    WT-301 Issue 2
    Fiber to the
    Distribution point
    This Technical Report provides the architectural basis and technical requirements that are needed to deploy FTTdp within a TR-101 and/or TR-178 architecture. To this end a new node type, the DPU, is defined. This node, typically positioned at the Distribution Point (DP), supports one or more high-speed copper drops into the customer premises and uses a gigabit (or faster) fiber link to backhaul user data to a High Order Node (HON). A key aspect of the new node type is the ability for it to be reverse power fed from one or more copper drop pairs. To Reverse Power Feed (RPF), there needs to be power supply functionality at the customer premises, the requirements for which are also defined here.
  • IL-301: WT-301 Issues List

  • Project Stream: FTTdp Management Interop and Testing
    Project Stream Leader:
    Mauro Tilocca, Telecom Italia
    Lincoln Lavoie, UNH IOL
  • OD-379: Interoperability Test Plan for FTTdp PMA/DPU Management Interface

  • Project Stream: FTTdp Management
    Project Stream Leaders:
    Ken Kerpez, ASSIA
    Joey Boyd, ADTRAN
    WT-298 Issue 2
    Management model for DSL line test
    This document defines an object model for all the DSL line test parameters specified in G.996.2. The object model specifies the structure of the managed objects, the detailed specifications of the parameters are given in G.996.2.
    WT-355 Amendment 1
    YANG Modules for FTTdp Management
    This document defines YANG data models for the management interfaces to support FTTdp. These models are to enable interoperability for FTTdp management.
    Yang Models for Management of Systems in FTTdp Architecture
    This specification defines the Yang data models necessary for the management of ITU-T technology when used in FTTdp architectures.
    Persistent Management Agent Aggregator (PMAA) Management Model
    In Development.
  • IL-355: WT-355 Issues List

  • Innovation

    An open environment to expose, discuss, stretch and socialize ideas that could be qualified at first as out of the box, innovative, or embryonic. Ideas may represent a personal view (not specifically associated with a company).

    The Innovation Track is an incubator for long term or disruptive topics, an exploratory space to road-test and help mature ideas to be then handed over to relevant Work Areas.

    Work Area Directors:

    Christele Bouchat, Nokia

    Mauro Tilocca, Telecom Italia

    Works in Progress:

  • SD-373 (jointly with Wireless Wireline Convergence Work Area): 5G Requirements and Enablers
  • SD-377: Broadband Assured IP Services Framework
  • SD-389: Broadband Assured IP Services Use Cases

  • Physical Layer Transmission Work Area
    Mission Statement:

    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 ever 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
    Work Area Directors:

    Les Brown, Huawei Technologies

    Massimo Sorbara, Qualcomm Incorporated

    Works in Progress:

    CPE SELT Equipment Testing and Operation Guidelines
    In Development.
  • IL-347: WT-347 Issues List
  • Project Stream: Bonding
    Project Stream Leaders:
    Herman Verbueken, Nokia
    Massimo Sorbara, Qualcomm Incorporated
    WT-273 Amendment 1
    Testing of Bonded, Multi-Pair xDSL Systems

    This amendment contains additional test cases to test the train up time of a bonding group.

    WT-273 Issue 2
    Testing of Bonded, Multi-Pair xDSL Systems

    In Development.

  • IL-273: WT-273 Issues List

  • Project Stream: and RPF Certification Testing
    Project Stream Leaders:
    Les Brown, Huawei Technologies
    Frank Van der Putten, Nokia
    WT-285 Amendment 1
    Broadband Copper Cable Models - Amendment 1

    This Amendment to TR-285 adds a reference model for modern polyethylene-foam insulated plant quad structured cable (PE4D) as being deployed by various European network operators.

    Reverse Power Feed (RPF) Test Plan

    This document specifies tests for the RPF functions of a DPU and the customer premises' Power Supply Equipment (PSE) either as a stand-alone device or as a function integrated in a FAST Network Termination.

    Test cases are mainly specified with reference to ETSI TS 101 548 and BBF WT-301 requirements. Furthermore they are designed to ensure safe deployment of RPF equipment.

    WT-380 Performance Test Plan

    In Development.

  • ID-337: FAST Certification Test Plan
  • ID-337: Certification Abstract Test Plan

  • IL-335: OD-335 Issues List
  • IL-337: ID-337 Issues List
  • IL-380: WT-380 Issues List

  • OD-335: Interop Plugfest Test Plan

  • SD-285: Copper Transmission Models for Testing above 30 MHz

  • Project Stream: Home Networking
    Project Stream Leaders:
    Les Brown, Huawei Technologies
    Marcos Martinez, Marvell
    WT-208 Issue 2
    Performance Test Plan For In-premises Powerline Communications systems - Issue 2

    This document is aimed to provide industry, operators, and test labs with a well defined test bed and an established set of tests that enable a performance comparison between powerline products and technologies that can be independently verified.

    Testing of wireline home-network transceivers from different vendors or technologies should be possible in a repeatable and reproducible fashion.

    Test Plan for Recommendation ITU-T G.9977 "Mitigation of Interference between DSL and PLC"

    ITU-T G.9977 Recommendation specifies functionality of a mechanism to mitigate interference caused by in-home powerline communication (PLC) devices to xDSL network termination. This mechanism allows service providers to detect possible interference, measure the effect of the interference, analyze the effect of the interference on the overall access system and, finally appropriately configure the parameters of DSL and PLC systems to minimize the effect of the interference on the user experience.

  • IL-208: WT-208 Issue 2 Issues List
  • IL-381: WT-381 Issues List

  • Project Stream: VDSL2 Physical Layer Testing
    Project Stream Leaders:
    Aleksandra Kozarev, Intel
    Lincoln Lavoie, UNH IOL
    Issue 3
    VDSL2 Performance Test Plan
    This document, as part of the Broadband Suite, provides a set of region specific performance requirements and test methods for VDSL2 modems implemented in accordance with ITU-T G.993.2 (Very high speed Digital Subscriber Line transceivers 2). Its key value is in the verification of performance such that network operators may deploy consistent and successful VDSL2 services in their networks.
    Issue 3 Amendment 1
    VDSL2 Performance Test Plan
    In amendment 1 updates address BA17ade retransmission performance tests.
    Issue 3 Amendment 2
    VDSL2 Performance Test Plan
    Amentment 2 address updates in Annex Q.
    Issue 3 Amendment 1
    VDSL2 Functionality Test Plan
    Amentment 1 address updates in Annex Q.
    Issue 2
    Testing of G.993.5 Self-FEXT Cancellation (Vectoring)

    This Working Text is intended to provide an interoperability/performance/functionality test plan for ITU T Recommendation G.993.5 "Self-FEXT cancellation (vectoring) for use with VDSL2 transceivers". Deployment scenarios in the scope of this Working Text include deployments from the Central Office (CO) and Fiber-To-The-x (FTTx) remote deployments.

    The scope of this Working Text also covers validation of the functionality of the Control, Inventory, and Reported parameters defined in ITU T Recommendation G.997.1 for the related G.993.5 functionality.

  • IL-114: WT-114 Issue 3 - Issues List
  • IL-114: WT-114 Issue 3 Amendment 1 - Issues List
  • IL-114: WT-114 Issue 3 Amendment 2 - Issues List
  • IL-115: WT-115 Issue 3 Amendment 1 - Issues List
  • IL-249: WT-249 Issue 2 - Issues List
  • IL-346: WT-346 Issues List
  • Routing and Transport Work Area
    Mission Statement:

    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.


    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

    Work Area Director:

    David Sinicrope, Ericsson

    Works in Progress:

    Project Stream: Cloud Interconnect
    Project Stream Leader: Vacant
  • MD-325: Seamless MPLS for efficient broadband services delivery - Tutorial
  • MD-367: Data Center Interconnect and other applications of EVPN - Tutorial

  • WT-350 Phase 2
    Ethernet Services using BGP MPLS Based Ethernet VPNS (EVPN)
    Project Stream: Mobile Transport and Routing
    Project Stream Leaders:
    David Sinicrope, Ericsson
    Yuanlong Jiang, Huawei Technologies
    WT-221 Amendment 2
    Technical Specifications for MPLS in Mobile Backhaul Networks
    This provides a new amendment to TR-221 which includes specifications on timing (phase/frequency) synchronization, enhancements on scalability such as support of multi-area LSP signaling and BGP LSP routing. This amendment is applicable to address backhaul up through 3GPP Rel.11 and beyond.
  • MD-305 Issue 3: MPLS Mobile Backhaul Evolution - 4G and Beyond - Tutorial
  • MD-342: Energy Efficient Mobile Backhaul - White Paper
  • MD-343: Energy Efficient Mobile Backhaul - Tutorial
  • MD-391: Evolution to 5G Mobile Backhaul Networks - White Paper

  • Project Stream: Optical Packet Evolution
    Project Stream Leader: Dean Cheng, Huawei Technologies

    Part C
    Achieving Packet Network Optimization using DWDM Interfaces

    Physically separated/Logically Integrated

    Network Providers have identified the potential to better integrate their packet and DWDM/optical networks to address growing network capacity demands, increase efficiency and reduce OPEX. This document specifically addresses Packet and DWDM/Optical integration.

    Integrated packet/optical networks and network node equipment are based on a variety of protocols and functionalities specifications (e.g., physical layer, data plane, control plane, management plane, etc.) from different SDOs. This document identifies the set of specifications that are necessary for implementation of integrated packet optical networking equipment. The working text is aimed at fostering the development of interoperable solutions from multiple vendors to be the benefit of consumers and suppliers of broadband services alike.

  • MD-339: DWDM Integration Tutorial
  • MD-366: IP/Optical Integration - White Paper

  • SDN and NFV Work Area
    Mission Statement:

    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.


    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.

    Work Area Directors:

    Ken Ko, ADTRAN

    George Dobrowski, Huawei Technologies Co., Ltd.

    Works in Progress:

    Project Stream: Cloud CO
    Project Stream Leaders:
    Hongyu Li, Huawei Technologies
    Yves Hertoghs, VMWare
    Virtual Business Gateway
    This Working Text specifies architecture and requirements for the virtual business gateway. The virtual business gateway architecture describes the migration of functionalities running on a business gateway to the network service provider's infrastructure for enabling network-based features and services. Such migration is expected to simplify the deployment and management of the network and business services.
    The purpose of this Working Text is to specify the virtual business gateway architecture as well as deployment scenarios. Such architecture would target different business premises sizes, e.g., small and medium enterprises (SMEs), campus, as well as single office and home offices (SOHO).
    Cloud Central Office Reference Architectural Framework
    Develop a framework for cloud infrastructure in the Central Office (CO). It will describe a Cloud platform for CO and define what virtualize network functions are necessary to run in the CO optimized to support Broadband 20/20 network functions of the MSBN as well as necessary interfaces.
    Project Stream: FANS
    Project Stream Leader: Bruno Cornaglia, Vodafone
    FANS Overall Architecture and Requirements
    FANS Overall Architecture and Requirements investigates on the technical aspects associated with Fixed Access Network Sharing (FANS), which covers the Access Network and part of the Customer Network in case of PON architecture, addressing the typical infrastructures, topologies and deployment scenarios. It also provides security considerations necessary to support multi-operator access sharing. This project outlines technical aspects related to the migration of TR-101 and TR-178 based architectures toward a shared converged broadband access network architecture that supports the business drivers defined in SD-351. Besides multi-operator sharing scenarios, this project can be also appropriate for a network operator that wants to slice its access network to offer different services toward customers (e.g., for residential or enterprise markets) and wants to be able to manage it using a vertical organization structure. Furthermore, FANS Overall Architecture and Requirements is the ongoing pilot project for the upcoming activities related to Access Network Sharing interface(s) and SDN-Enabled FANS.
    FANS Access Network Sharing Interfaces
    The scope of "FANS - Access Network Sharing Interfaces" is to extend the SD-351 "Stage 1 Analysis of Fixed Access Network Sharing (FANS)" document with a deeper analysis of the systems interfaces involved in information exchange between FANS architecture systems.
    Project Stream: SDN for MSBN
    Project Stream Leader: Charles Cook, CenturyLink
    Support for SDN in Access Network Nodes
    WT-358 "Requirements for Support of SDN in Access Nodes" has two goals. The first goal is to define the requirements necessary to support SDN-based implementations for Access Nodes including FTTdp. This work is based on use cases identified in SD-313 and existing TRs such as TR-101 and TR-178 developed within BBF. A second goal is to identify gaps in current SDN protocols relative to the requirements identified and to communicate those gaps to the appropriate development organizations.
    YANG Models for ANs in SDN

    WT-368 is developing YANG models in support of WT-358 "Requirements for Support of SDN in Access Nodes." The project will document both the YANG models required for SDN-enabled Access Nodes and the relationships between those models and other YANG models used by ANs.

    Wireline-Wireless Convergence Work Area
    Mission Statement:

    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.


    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 at 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.

    Work Area Directors:

    David Allan, Ericsson

    Hongyu Li, Huawei Technologies

    Works in Progress:

  • SD-373 (jointly with Innovation): 5G Requirements and Enablers
  • Project Stream: Converged Policy and Control
    Project Stream Leader: Frederic Klamm, Orange
    Project Stream: Hybrid Access
    Project Stream Leaders:
    Jaume Rius I Riu, Ericsson
    Guiu Fabregas Segales, Nokia
    Hybrid Access Nodal Requirements
    In development.