1. Forget the Layers:
NFV Is About Dynamism
Prayson Pate CTO, Ensemble, ADVA Optical Networking
July 1, 2016

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NFV: A Narrow Definition
Replacing closed appliances with software virtual network
functions (VNFs) that can be hosted anywhere in the network on
any open hardware

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NFV sounds great,
but there are some obstacles

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Access to NFV: Layer 2 or Layer 3?
Service
Provider
Backbone
On Net
Layer 2
Off Net
Layer 3
Transparent connection
for virtualized services
Standard for
broadband access

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Hosting for NFV: Customer or Cloud?
Service
Provider
Backbone
Access Access
Lowest initial cost
Cost scales with services
Benefits of cloud (e.g.,
resilience, cost,
maintenance, etc.)

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NFV Deployment: Greenfield or Brownfield?
Service
Provider
Backbone
SDN
Buildout
Existing
MPLS
Fully automated
and virtualized
services
Upfit of existing
networks and
services

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The Answer to These Questions is “Both”
… and those aren’t really the right questions!

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The Right Questions
• How can we can dynamically orchestrate NFV-
based services to provide new revenue?
• How can they deploy on both greenfield and
brownfield scenarios?
• How can we use the cloud to dynamically
deliver the cloud?

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Result: Success today and in the future
The Right Answers
• Select an architecture that is open and
that supports multiple deployment
options
• Select partners that are interoperable
• Identify an application that is contained
and valuable

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NFV Example: Use BGP to Insert VNFs
Layer 3
VPN
MPLS
Backbone
Data Center
Specific VNFs can be dynamically tied to specific VPNs

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NFV Example: Virtual CPE
Service
Provider
NID, router,
firewall, etc.
Service
Provider
Move from static appliances to dynamic VNFs
Dynamic
VNFs

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NFV Example: NFVIaaS
Operator EADService provider
serverCustomer
Service provider
VNFs
Access
network
Operator server
with NFVI (NFVIaaS)
Service provider
VNFs
Customer
New revenue for facilities-based operators
Access
network

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NFV Example – Micro Data Center
Micro Data Center
NOC
Extend the cloud to the customer
Public
Internet
Public
Internet
Macro
Data Center

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The Result: Success With NFV
Support for multiple deployment
options, access methodologies, and
applications – all dynamically
controlled and orchestrated

15. Thank You
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