Software Defined NetworksNetwork Function Virtualization

Pivotal TechnologiesMargaret T. Chiosi

AT&T Labs Distinguished Network Architect

Network Function Virtualization – ETSI ISG founding member

Opening Up NFV – Facilitating Discussions within ISG

MEF Board of Directors (Former)

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Overview of NFV, NFV and SDN synergy, standardization and role of open-source – Margaret Chiosi, AT&T

Spreading NFV through the Network: the NFV Use Cases - Andrea Pinnola, Telecom Italia

Building a Digital Telco: Network Virtualisation experiences – Francisco Javier Salguero, Telefonica

DOCOMO's Challenges for Network Virtualization in Mobile Networks - Tetsuya Nakamura, NTT Docomo

Deployment of SDN and NFV : Vendor perspectives and experiences -Karthikeyan Subramaniam, Adara

Agenda

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Creates an intelligent network that is more open, programmable, andapplication aware

• a vision in which the network is transformed into a more effectivebusiness enabler

Enables applications to request and change services provided by thenetwork and allow the network to expose network state back to theapplications

What is Software Defined Networks (SDN)?

3*Source: Definitions from talks in the industry

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SDN for E2E Enterprise Connectivity

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Page 4

Virtual Private Data Centers

VPN-1

VPN-2

AT&T CBB

RR

Customer-1 Sites

Customer-2 Sites

VRF

VRFIRBI-PE/

I-CE

Service Orchestrator

SDN Controller

SubnetsSubnets

SubnetsSubnets

Mo

bile

an

d B

road

ban

d In

tern

et

Acc

ess

VM

vSwitch/Rtr

Network Orchestrator

VM

VMVMSDN Controller

Tomorrow Connectivity Between Data Centers

5

AT&T CBB

RTR IPE Ethernet Switch

TOR

Server w/RTR ICE

VRF 1

VRF 2

•Optimize end-end network path when moving VMs

Data Center A

Data Center B

CustomerRemote Site

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An E2E Architecture View on Virtualization

Computing

Hardware

Storage

Hardware

Network

Hardware

Hardware resources

Virtualisation LayerVirtualised

Infrastructure

Manager(s)

VNF

Manager(s)

VNF 2

OSS/BSS

NFVI

VNF 3VNF 1

Execution reference points Main NFV reference pointsOther reference points

Virtual

ComputingVirtual Storage Virtual Network

EMS 2 EMS 3EMS 1

Service, VNF and Infrastructure Description

Or-Vi

Or-Vnfm

Vi-Vnfm

Os-Ma

Se-Ma

Ve-Vnfm

Nf-Vi

Vn-Nf

Vl-Ha

Orchestrator

ETSI ISG NFV

SDN &NFV Fit Hand in Glove

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7

VM Container

Virtual

Network

Function

Cloud Orchestrator &

Management

Controller &

Management

Physical

Network

Function

Service Orchestrator

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SDN & NFV

Computing

Hardware

Storage

Hardware

Network

Hardware

Hardware resources

Virtualisation LayerVirtualised

Infrastructure

Manager(s)

VNF

Manager(s)

VNF 2

OSS/BSS

NFVI

VNF 3VNF 1

Execution reference points Main NFV reference pointsOther reference points

Virtual

ComputingVirtual Storage Virtual Network

EMS 2 EMS 3EMS 1

Service, VNF and Infrastructure Description

Or-Vi

Or-Vnfm

Vi-Vnfm

Os-Ma

Se-Ma

Ve-Vnfm

Nf-Vi

Vn-Nf

Vl-Ha

Orchestrator

ETSI ISG NFV

SDN Controller

SDN Controller

Cycle Time – Faster Instantiation of New or Removal of Old Capabilities/Services

• Pre-deployed common pooled hardware• Design for rapid insertion of new or removal of old capabilities/services via software

Composition – Faster Innovation to New Features or More Streamlined Functions

• Modularity and API vs. today’s monolithic functionality• Easier to re-architect products/services• Agile development to trial features in a sandbox or controlled exposure• Ability to create value-added capabilities while retaining the operational and scale advantages

associated with multi-tenant carrier platforms

Cost – Providing cost-performance leadership

Why are SDN/NFV Important to AT&T?

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APIs (SDN Controller – North/South; Virtualization Management & Orchestration) Open Community/Plug-ins and Standards/Forums

SDN Controller Multi-vendor Hybrid – New Network Elements; Deployed NE

Virtualization Platform Portability -> Modular & Multi-Vendor (Processor, Hypervisor, Storage, NIC..) Common Virtual Platform

Orchestration and Management->Zero Touch-Automation Integration of Platform Orchestration & Management with the Network Function Management &

SDN Controller Multi-vendor VNF/PNF support Major change in Operations (one for a function -> 2+ platform, function) Major change in Capacity Management

Areas For Leadership & Innovation

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ETSI ISG NFV Status

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The NFV ISG provides a forum for the industry & operators to

collaborate, have common requirements, agree on common

approaches, and validate recommendations

• Produce a set of requirements/specifications, quick turnaround (4Q2014

Identify technical challenges and scope

Encourage Standards as well as Open Source

ETSI ISG NFV’s Objectives

ETSI ISG NFV

Global operators-initiated Industry Specification Group (ISG) under the

auspices of ETSI

• >184 companies (Global span: Africa ,Asia ,Europe, Latin America, North America)

• 28 Tier-1 carriers (incl mobile) + cable industry

Open membership• ETSI members sign the “Member Agreement”

• Non-ETSI members sign the “Participant Agreement”

• Operates by consensus (formal voting only when required)

Deliverables: requirements specifications, architectural frameworks,

PoCs, SDO Liaisons

ETSI ISG NFV Group

13 ETSI ISG NFV

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ETSI ISG NFV

Existing NFV ISG Setup

14

Virtu

alis

atio

n

Infr

astr

uctu

re W

G

So

ftw

are

Arc

hite

ctu

re W

G

Re

liab

ility

an

dA

va

ilab

ility

WG

Ma

na

ge

me

nt a

nd

Orc

he

str

ation

WG

Pe

rfo

rma

nce

EG

Se

cu

rity

EG

NFV Plenary

>900 delegates>180 companies

Quarterly

Technical Steering Committee Network Operator Counciladvisory only

Chairman / Vice Chair

E2E Architecture WI

Requirements WI

Use Cases WI

Terminology WI

ETSI ISG NFV

We have grown. (159 in NFV#4 184 now)

We have moved from identifying the need to specifying the

requirements. (White Papers & Frameworks WG Docs;

Identifying gaps in Standards and Open Source)

We are focussing on timely completion. (Aggressive timeline for

publication.)

We are moving our emphasis from identifying requirements to

fostering implementations. (Docs PoCs)

We have created proposals for the form of the ISG beyond our

initial 2–year charter. (NFV 2.0)

Where Are We?

© ETSI 2014. All rights reserved15

In the 14 months since the organizing meeting in January of this year :

• Published 5 documents - Use Cases, Requirements, Architectural Framework, Terminology, and PoC Framework.

• 9 PoC proposals accepted.

• 2 drafts in public / open area from SEC & PER Expert Groups

• Created easy to navigate websites for access to public material.(http://www.etsi.org/nfv)

• NFV blog

What Have We Done?

© ETSI 2014. All rights reserved16

ETSI ISG NFV

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DecOctSepAugJulyJuneAprilMarchFebJan May Nov JuneAprilMarchFebJan May

ETSI ISG NFV

NFV#7USA

NFV#6JP

NFV#5SP

NFV#9FR

NFV#8USA

NFV RELEASE TIMELINE

Release Maintenance: Drafts are WG approved, i.e. Technical content is ready for PUB, only corrections and inter WG alignments are allowed.

Release Maintenance

Release ”Freeze”

Progress NFV release

Release Approval & PUBLICATION

OPEN area

Release stable,WG final check

NFVApp

OPEN areaupon Req 30d

unchanged

WGApp

NFVApp

If required, update terminology + Architecture + Requirements

30dunchanged

All WG drafts are WG-approved

Forces pulling NFV in different directions

© ETSI 2012. All rights reserved18

NFV

Astandards

organization

Fast TrackImplementation

Monitoring &CoordinationCommittee

ETSI ISG NFV

Where to position NFV phase 2 ?

© ETSI 2012. All rights reserved19

Astandards

organization

Fast TrackImplementation

Monitoring &CoordinationCommittee

NFVPhase 2

ETSI ISG NFV

ETSI ISG NFV

Speed up implementation of NFV

Create a carrier grade Open Source Ecosystem

Focus on Open Community which isn’t controlled by one vendor/implementation

Focus on Open Framework to allow the plug and play of different implementations

Try to build upon existing Open Source Foundations

Why/How to Pursue Open Source Framework?

20

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