Interested in Understanding How Service Providers are Using Software-Defined Networking (SDN) to Solve Problems? This Presentation Explores Why Service Providers are Turning to SDN and What They are Doing With it...

1. Software-Defined Networking (SDN) Use
Cases
How Service Providers Are Using SDN
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2. First, Let’s Define SDN
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3. SDN is a New Way to Design, Build and Operate
Networks
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SDN Definition
1. Separates the network’s control (brains)
and forwarding (muscle) planes
2. Provides a centralized view of the overall
network
3. Utilizes programmatic application
interfaces (APIs)
4. Enables efficient orchestration and
automation of network services
SDN Controller/ Network Operating System
App App App App
OpenFlow
Packet-Forwarding
Hardware
OpenFlow
compliant OS
Packet-Forwarding
Hardware
OpenFlow
compliant OS
Packet-Forwarding
Hardware
OpenFlow
compliant OS
Well-defined
Open API

4. SDN Promises
Agility: enabling organizations to rapidly deploy
applications, services, and infrastructure to meet needs
Scale: automate and optimize new and existing
applications and services
Innovation: allowing organizations to create and deliver
new types of applications, services and business models
SDN Opens the Network Up for Innovation
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It replaces static, inflexible and complex networks, with networks that
are agile, scalable and innovative.

5. Why Are Service Providers Interested in
SDN?
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6. They Want to Drive Down Costs and Monetize
their Networks
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Virtualization and Cloud
Adoption –looking at ways to
better utilize resources and
embrace new architectures to
achieve greater flexibility and
scale.
Mobility – need to keep up
with exponential demands
and opportunities created by
mobile adoption; mobile data
growth rates exceeded 800%
in 12 months. (Cavell)
Visibility and Control – need
to understand and manage, in
detail, their user’s behavior to
create more accurate
forecasting and more efficient
content distribution strategies.

7. Packet-Forwarding Hardware
Operating System
L2/L3 L4-7 App App
The Complexity of Pre-SDN Networks Can Make It
Hard to Roll Out, Manage and Scale Services
Packet-Forwarding Hardware
Operating System
L2/L3 L4-7 App App
Packet-Forwarding Hardware
Operating System
L2/L3 L4-7 App App
Routers
Switches
Remote-access devices
…
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Reserved.
7
Forwarding Plane
Control Plane
Management Plane
Operating System

8. SDN Controller/ Network Operating System
App App App App
OpenFlow
Packet-Forwarding
Hardware
OpenFlow compliant OS
An SDN-Powered Network Can Simplify, Automate
and Accelerate Service Delivery
Packet-Forwarding
Hardware
OpenFlow compliant OS
Packet-Forwarding
Hardware
OpenFlow compliant OS
Well-defined
Open API
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Reserved.
8
Reduce CAPEX and OPEX and Grow Revenue and ARPU

9. So, What Are Service Providers Doing with
SDN?
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Let’s Look at Some Use Cases Being Deployed Now…

10. Why SDN Is Used
Accommodate Self-Service L4-7
Service Selection
To Create Dynamic Chains of L4-7
Services on a Per Tenant Basis
Accommodate Policy-Based L4-7
Service Selection (e.g. Turning on
DDoS Protection in Response to
an Attack or DPI in Mobile WAN
environments)
Benefits
Reduced Provisioning Times: from
Weeks to Minutes
Improved Agility
Self-Service Supports New
Revenue and Service
Opportunities, with Substantially
Lower Costs for Service
Data Center/Service Provider DMZ/WAN – Service
Insertion
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11. Why SDN Is Used
Replace Existing Customer
Premises Equipment (CPE) with
Lightweight Versions – in
Combination with NFV Initiatives
Move Common Functions and
Complex Traffic Handling into
Points-of-Presence (POP) or the
Data Center
Benefits
Increase Usable Lifespan of On-
Premise Equipment
Improve Troubleshooting: Less
Truck Rolls
Flexibility to Sell New Services to
Business and Residential
Customers
Virtual Edge (Residential and Business) – On-
Premise Upgrades
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12. Why SDN Is Used
Enable Programmatic Controls on
Carrier Links to Request Extra
Bandwidth When Needed (e.g.
Disaster Recovery; Backups)
Benefits
Reduced Operational Expenses:
Allowing Customer Self-Service
Improved Agility: Saving Weeks of
Manual Provisioning
Bandwidth on Demand
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13. Why SDN Is Used
To Bypass Expensive Inspection
Devices When Moving Large
Amounts of Trusted Data
Provide dynamic, yet authenticated
programmable access to flow-level
bypass, using APIs to network
switches and routers
Benefits
Savings: Hundreds of Thousands
of Dollars in Unnecessary
Investment in 10Gbps or 100Gbps
L4-7 Firewalls, Load-Balancers
and IPS/IDS that process traffic.
Maximize Utility of Inspection
Devices: Focusing Them on Traffic
that Poses a Risk to the Network
Edge – Dynamic WAN ReRouting
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14. Why SDN Is Used
Create Dynamic Interconnects
at Internet Exchanges
Between Enterprise Links or
Service Providers Using Cost-
Effective, High-Performance
Switches
Benefits
Reduce Operational
Expenses: Ability to Instantly
Connect and Enable Self-
Service Reduces Time and
Effort Associated with
Creating Cross-Organization
Interconnects
WAN – Dynamic WAN Interconnects
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15. Want More Information on What’s Going
on Now?
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16. Research &
Development
Organizations
Open Source Projects 225+ Organizations Customers – Live
Deployments
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16
A Vibrant SDN Open Source
community is actively
working on Open Source
Projects
Organizations are
collaborating to creating lots
of new technologies or adapt
old technologies
Hundreds of New and
Established Companies
have announced
SDN strategies
SDN Products
and Shipping Solutions
Check out real solutions
being used by real customers
at DemoFriday™
There Are A Lot of New
Technologies, Vendors and Deployments to
Leverage…

17. For More Information Visit SDNCentral.com
The Independent Community and #1 Resource for
SDN, NFV and Network Virtualization
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