the broadband forum: updates on nfv & sdn … · the broadband forum: updates on nfv & sdn...

Enterprise/Govt. SMB Residential Mobile

Access Metro Backhaul/Core Data Center

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The Broadband Forum: Updates on NFV & SDN Activities

Ken Ko, ADTRAN BBF SDN & NFV Work Area Co-Director

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Almost every BBF Project has an NFV and/or SDN connection

Broadband Assured

IP Service

Remote Provider Domains

Data Center

Residential Users, Home Workers, Business, Industrial Users Gateway

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Remote Provider Domains

Content Delivery Network

Street Cabinet Cloud CO / Datacenter

Professional Building Multi-Dwelling

Residential/SoHo

Wi-Fi

Ethernet copper

Phone wiring

DPU

DPU

Best Effort Internet

Mobile/Wireline Converged Backhaul

Data Center Data Center Interconnect

Broadband - the big picture

Broadband - the big projects

DevOps for Virtualized Networks

Ultra-fast, FTTdp, NGPON2, GPON

Network Programming /SDN

Network Virtualization/NFV

Performance Aware Services

TR-069, Broadband User Services

Fiber Access Networks

Physical Layer Transmission

Software, Data Models, APIs

User Services Platform

Distributed Compute/ Cloud CO

Interop Testing & Certification

Broadband Innovation

Open Broadband

Wi-Fi Performance and Fault Isolation Routing & Transport

Architecture & Migration

Broadband 20/20

Wireless-Wireline Convergence

4G/5G Hybrid Networking

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Top Areas of Broadband 20/20 Innovation

• Ultra-fast wireline infrastructure service • Intelligent home/small business services • Seamless wireline/wireless connectivity services • Broadband Assured IP services • Personalized network service

Each brings new stakeholder value enabled by BBF deliverables

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Broadband 20/20 SDN & NFV Projects

Context for Broadband Forum Projects • SDN & NFV – why the Broadband Forum? –BBF matches SDN/NFV with expertise in access network and services – Industry looking to the BBF to bring NFV/SDN to 350m installations

• BBF revenue-generating use cases are enabled by SDN/NFV • Seamless migration to hybrid model only viable approach • 9 recently completed BBF projects • 8 projects in progress

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Some NFV/SDN Projects

Application of SDN and Virtualization • Convergence: 5G universal fixed/wireless access functions (SD-357) • Virtual Gateway: Virtual Business Gateway (WT-328) • Control: SDN in the Access Network (WT-358) & SDAN YANG (WT-368) • Architectural Framework: for NFV & SDN (WT-359i2) • Multi-tenant: Fixed Access Network Sharing (WT-370); FANS Interfaces (WT-386) • Cloud CO: Architecture (WT-384)

Completed technical enablers • Services: Cloud Intelligent Broadband Network (SD-302) • Control: SDN in Broadband Networks (SD-313); Flexible Service Chaining (SD-326) • Migration: NFV introduction in the Broadband Network (SD-340); Introducing NFV into

Business Gateway Edge (WT-345) • Multi-tenant: Fixed Access Network Sharing (SD-351) • Architectural Framework: Architectural Framework for NFV (WT-359); Defining an SDN

reference model (SD-365) • Virtual Gateway: Network Enhanced Residential Gateway (TR-317)



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Focus on Selected Project Areas

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YANG Models

• BBF has become an industry leader for YANG models

• General approach – Build on IETF models, e.g. ietf-interfaces, where appropriate

– Model functionality as it relates to access networks

• Common YANG (TR-383) – Soon to be published: L2 forwarding, QoS, subscriber protocols (DHCP, PPPoE)

– Work in progress: multicast management, software management, enhanced QoS features, e.g. bandwidth profiles

• Technology-specific models – Fiber to the Distribution Point (TR-355)

• published models for G.fast, VDSL, MELT, SELT

– PON Management (WT-385) – work in progress

– ONU Management (WT-394) – work in progress

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Broadband Assured Services

• Beyond best effort Internet access – Performance- and security-aware

• Broadband Assured IP Services Architecture (WT-387) – Sets up the phased implementation of BAS services and their attributes. This encompasses

the service frames and end-points, preservation of service attributes across single and multi-domain networks, hybrid wireless and wireline service connection points, service level protection recommendations for various service reliability levels.

• Broadband Assured IP Services Technical Specification (WT-388) – Covers the definition and attributes of BAS services. First phase emphasizes definition of a

useful simple service meeting the requirements of simpler use cases, that can readily be implemented via a set of Broadband Forum data models

• Performance Measurement between Customer Equipment and IP Edge (WT-390) – Describes in-service performance measurement tests. Main focus is on-demand

performance measurement, but also used for proactive testing including continuous monitoring.

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Virtual Gateways

• Network Enhanced Residential Gateway TR-317 – Shifts functionalities from the

Residential Gateway to the operator's network.

– Facilitates deployment and evolution of existing and new capabilities without adding complexity to the RG or the home network.

• Virtual Business Gateway WT-328 – Virtualizes functionalities from a

Business Gateway to a flexible hosting environment

– NFVI located at the customer premises and/or in the operator's network

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Multi-Tenant Access

• Fixed Access Network Sharing

– Allow multiple Virtual Network Operators to share a common physical network infrastructure

– Enable sharing models beyond bitstream

• WT-370, FANS Architecture & Requirements

– Management-plane: support FANS in existing (non-virtualized) deployments using enhancements in management plane

– Virtualization-enabled: allocate virtualized resources managed directly by tenants

– SDN-enabled: leverage SDN to support new FANS deployment scenarios

• WT-386, FANS interfaces

– Provides details required to define the system interfaces defined in WT-370

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– Architectural framework

– Interfaces

Cloud CO

• Next generation framework – Aligns with the BBF Broadband 20/20 vision

– Virtualized, implemented on NFV infrastructure

– Deployed at Central Offices

– Inherent multi-tenancy

• Consistent with principles driving OpenCORD – OpenCORD is an OS reference implementation

– Cloud CO supports many implementations including OpenCORD

– Cloud CO accommodates migration and coexistence scenarios

– Cloud CO accommodates commodity and proprietary hardware as well as PNFs

• Cloud CO projects

NNI

Access Node (single)

Access Node (multiple)

Network I/O ONU, DPU,

CM, pSG, …

PON, G.fast, HFC, …

UNI

Access Node

SDNC

NBI(s)

CPE

NFVI

Compute Nodes

Compute Nodes

Compute Nodes

VNF1 VNF1 VNF3

VNF4 VNF1

Leaf Sw. Leaf Sw.

Compute Nodes

VNF2

VNF3

Leaf Sw. Leaf Sw. Leaf Sw. Leaf Sw.

Spine Switch Spine Switch

MANO NFVO

VNFM VIM

– Migration and Co-existence

– Hardware

– Software

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5G Convergence

• Opportunity for convergence in next-gen fixed and mobile cores

– Common NFV infrastructure

– 5G minimizes dependencies between Access Network (AN) and Core Network (CN)

• February Workshop with 3GPP (Dubrovnik)

– Service providers want network functions convergence - not just hosted on a common infrastructure

– Common infrastructure and processes on any access

• Going forward

– BBF to analyze gaps to integrate wireline access to a Common Core

– BBF to make recommendation to 3GPP for adaptation to procedures and reference points

– Goal is to execute on normative work in a 5G Phase 2 timeframe (R16)



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• A collaborative space for the integration and testing of open source, standards-based and vendor provided implementations

– Place where suppliers & operators can work together on new & coexisting solutions

– Open Broadband Infrastructure (OB-I) is a common hardware and software platform for an open laboratory

• Fulfilling important industry requirements

1. The acceleration of go-to-market and go-to-production for new services

2. Open Broadband is an open invitation to participate in a developer-friendly environment without undue financial, membership, proprietary or rigid technical constraints

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Open Broadband - a new BBF project

• The context for Open Broadband

– The migration to Cloud-based, programmed, virtualized systems & co-existence with existing infrastructure

• Open Broadband provides

– A new framework for the integration and testing of broadband services and related services

– Alignment with open source techniques, while focusing on interoperability and mitigation of deployment risks

– A partnership with the open source community

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How OB accelerates go-to-market for new services

• OB builds trust and predictability, understanding of limitations, issues & calibrating likely performance in operational systems

• A realistic strategy for resolving interop/co-existence/migration issues that have been a barrier to virtualization and new revenue generating services

• The business oriented activities and principles include:

– Support for cross-platform development and testing of cloud-based solutions

– A global approach to rapid service on-boarding

– Developing reference models and test-beds for all aspects of a use case

– Integrating industry interoperable open source & commercial cloud-based broadband solutions from suppliers and service providers

– Open development platform for Broadband services and related technologies

– Avoidance of lock-in to proprietary solutions

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Open Broadband Infrastructure (OB-I): Definition and Scope

A common hardware and software platform for an open laboratory. OB-I is a collaborative industry resource that encompasses vendor provided, open source and standard implementations coming together in a framework supporting existing and planned service provider deployments. The initial scope of OB-I is:

• Create a rich set of test resources to be used for staging, testing (functional, performance, and interoperability), and continuous integration of broadband NFV/SDN, CloudCO, cloud-based services and applications, management, and orchestration.

• Provide the industry and BBF members with defined interfaces and reference test environment for how their products and solutions can fit into the NFV/SDN cloud-based architecture.

• Derive from requirements related to BBF projects such as CloudCO, but do not constrain third party application service providers.

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Open Broadband Infrastructure

BBF User-facing interfaces (U/T) BBF

Network-facing interfaces (A10)

Common Cloud Platform

Open Source NFV/SDN Vendor-provided NFV/SDN

Value Added Services/Applications

BBF Policy/Management interfaces (R/M/…)

BBF Interface Access

Existing and new Broadband

Network implementations

Physical Platform (NFVI Hardware)

Test Automation Framework

Located in Open Broadband Laboratories

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Additional OB-I Scope

• Cloud Central Office implementation with a common cloud platform and customer premises implementations

• Platform serving as a Broadband Networking proving ground. Development and code upstreaming to open source partners is also possible

• Test co-existence and migration models bringing virtualization and software defined networking into existing deployments

• APIs to consume services from a Cloud CO-based network with multi-vendor support, service orchestration and MANO compliance

• Gives stakeholders opportunity to run a single network with a variety of access technologies

• OB-I will be able to model Use Cases validating the platform, business case and deployment

• Successful "field" tests will feed into downstream BBF standardization See

notes

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Open Broadband Laboratories

• BBF role: partner with labs based on regional requirements & available funding

– Broadband Forum is not funding OB but is helping to facilitate funding

• OB Labs hosting the OB-I are independent of the BBF

• OB Labs adhere to the OB guidelines:

– Provide services according to fair, reasonable, and nondiscriminatory terms

– Must makes services available to the entire industry (no limitations)

– Must be independently funded

– Hardware and software platforms in each lab may vary

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Value for Stakeholders Service providers • Accelerated time to market • Proving ground for business cases – mitigation of risks providing a test bed for application and

service development, expanding opportunities and eliminating silos • Development collaboration, leveraging shared infrastructure, innovative solutions where

Intellectual Property is respected and protected • Support for top down service model for automated service management Integrators • Integrate scalable implementations for a wide variety of clients and classes of operators • Development collaboration, leveraging shared infrastructure, to development innovative

solutions Suppliers • Proving ground for functionality, interoperability and performance • Effective and neutral ground to ‘on board’ new apps and services • Protection of Intellectual Property developed within the framework • Development collaboration, leveraging shared infrastructure, development innovative solutions

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Collaboration: Open Broadband and other industry projects

• OB-I is the infrastructure platform that will provide physical lab resources to facilitate integration, testing, trials, and prototypes for cloud based broadband services

• BBF Cloud CO Project, together with new BBF service modeling, define aspects of the virtualized broadband network (architecture, software, hardware, interfaces, migration) enabling new services

• Open Source Projects (OPNFV, Open-O, OCP, ONOS, OpenCORD, Open Daylight, OpenStack, etc.) can provide implementations into Open Broadband

– Open Broadband will facilitate input to those projects, including desired requirements, upstream code, etc.

• Collaboration with other organizations e.g. ETSI NFV ISG, ONF, IETF, etc.

• Vendors can provide their additional solutions into Open Broadband

– Enables testing of integration for commercial deployments

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What Open Broadband isn't …

• OB is not another open source project to implement an NFV Infrastructure or MANO system(s)

• OB is not intended as merely proof-of-concept or experimental – it is business-oriented and deployment-focused

• OB does not require open source implementations/projects for all defined virtual functions or platforms – Some functions might have reference/prototype implementations, based on

community contribution(s)

– Some functions might already have well adopted, closed solutions, and would likely not drive enough participation to develop a viable open source project

– Open to vendor provided and open source solutions to satisfy full range of business and deployment scenarios

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Summary • The BBF takes on a key and complementary industry role in creating a

collaborative space to work between open source & vendor provided deployable implementations

• BBF establishes and oversees regionally located independent labs

• BBF uniquely understands and is the defining body for Broadband architecture, services, interfaces, and management

• Accelerates virtualization of resources throughout the broadband network

• Sets the stage for migration and co-existence

• Provides safe harbor for projects where retention of IPR is required



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Thank you!

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At a Glance

Industry’s defining body for - LAN/WAN architecture design, implementation,

management, certification testing for existing and emerging technologies

Strong Membership - Work sourced globally from more than 150 manufacturers

and service provider members

Large Body of Work Implemented - Approaching 200 published standards - Key specifications adopted globally - Referenced by the SDO community

Highly Active - More than 1000 technical contributions in the last 12 months - Rapid growth in recognition and adoption of BBF certification

the broadband forum: updates on nfv & sdn … · the broadband forum: updates on nfv & sdn...

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