The document discusses software defined networks (SDN) and network function virtualization (NFV). It provides an agenda for a presentation on SDN and NFV including an overview of NFV and its synergy with SDN, standardization efforts, and the role of open source. The presentation will also cover spreading NFV through use cases, network virtualization experiences from operators, challenges of network virtualization for mobile networks, and vendor perspectives on deploying SDN and NFV.

3. Software Defined Networks
Network Function Virtualization
Pivotal Technologies
Margaret 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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4.  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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5. Creates an intelligent network that is more open, programmable, and
application aware
• a vision in which the network is transformed into a more effective
business enabler
Enables applications to request and change services provided by the
network and allow the network to expose network state back to the
applications
What is Software Defined Networks (SDN)?
3
*Source: Definitions from talks in the industry
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6. 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
VRF
IRBI-PE/
I-CE
Service
Orchestrator
SDN Controller
SubnetsSubnets
SubnetsSubnets
MobileandBroadbandInternet
Access
VM
vSwitch/Rtr
Network
Orchestrator
VM
VMVM
SDN Controller

7. 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
Customer
Remote
Site
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8. An E2E Architecture View on Virtualization
Computing
Hardware
Storage
Hardware
Network
Hardware
Hardware resources
Virtualisation Layer
Virtualised
Infrastructure
Manager(s)
VNF
Manager(s)
VNF 2
OSS/BSS
NFVI
VNF 3VNF 1
Execution reference points Main NFV reference pointsOther reference points
Virtual
Computing
Virtual 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

9. SDN &NFV Fit Hand in Glove
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property. AT&T Proprietary (Secure Restricted) - Only for use by
authorized individuals as approved by an Officer of the AT&T Companies
7
VM Container
Virtual
Network
Function
Cloud Orchestrator &
Management
Controller &
Management
Physical
Network
Function
Service Orchestrator
© 2013 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property. AT&T Proprietary (Secure Restricted) –
Only for use by authorized individuals as approved by an Officer of the AT&T Companies

10. SDN & NFV
Computing
Hardware
Storage
Hardware
Network
Hardware
Hardware resources
Virtualisation Layer
Virtualised
Infrastructure
Manager(s)
VNF
Manager(s)
VNF 2
OSS/BSS
NFVI
VNF 3VNF 1
Execution reference points Main NFV reference pointsOther reference points
Virtual
Computing
Virtual 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

11. 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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12.  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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13. ETSI ISG NFV Status
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14. 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

15. 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

16. © 2012 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other AT&T
marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated
companies. All other marks contained herein are the property of their respective owners.
ETSI ISG NFV
Existing NFV ISG Setup
14
Virtualisation
InfrastructureWG
Software
ArchitectureWG
Reliabilityand
AvailabilityWG
Managementand
OrchestrationWG
PerformanceEG
SecurityEG
NFV Plenary
>900 delegates
>180 companies
Quarterly
Technical Steering Committee Network Operator Council
advisory only
Chairman / Vice Chair
E2E Architecture WI
Requirements WI
Use Cases WI
Terminology WI

17. 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

18. 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

19. © 2012 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other AT&T
marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated
companies. All other marks contained herein are the property of their respective owners.
DecOctSepAugJulyJuneAprilMarchFebJan May Nov JuneAprilMarchFebJan May
ETSI ISG NFV
NFV#7
USA
NFV#6
JP
NFV#5
SP
NFV#9
FR
NFV#8
USA
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
NFV
App
OPEN area
upon Req 30d
unchanged
WG
App
NFV
App
If required, update terminology + Architecture + Requirements
30d
unchanged
All WG drafts are WG-
approved

20. Forces pulling NFV in different directions
© ETSI 2012. All rights reserved18
NFV
A
standards
organization
Fast Track
Implementation
Monitoring &
Coordination
Committee
ETSI ISG NFV

21. Where to position NFV phase 2 ?
© ETSI 2012. All rights reserved19
A
standards
organization
Fast Track
Implementation
Monitoring &
Coordination
Committee
NFV
Phase 2
ETSI ISG NFV

22. 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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