Tallac Networks presents Intro to SDN, Part I. Watch or download the presentation with sound at tallac.com/webinars.

1. Tallac Networks Webinar Series
Software-Defined
Networking
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2. About the Presenter
• Chuck Black, Principal Software Architect and all-
around good guy at Tallac Networks
• 30+ years experience doing
research and development in
networks, network
security, and network
management
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3. SDN Intro: Part I
I promise I’ll slug the next moron that says “SDN”
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4. SDN: Nowhere to Hide
• Resistance is futile, you will be assimilated
• Billion-dollar acquisitions
• Millions of dollars of VC
• Google, VMware, even Cisco ... seems like
everybody is getting into the act
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5. What the heck is SDN anyway?
• Depends who you ask...
Neurologist
Sexually
Dimorphic
Nucleus
• Look at the roots of SDN from the very beginning
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6. Pre-SDN Situation
Fundamental Issue: Closed system
App App App App App
App
Operating System
App App
Operating System
Open Environments Closed
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7. Why Does This Suck? Stupid static, rigid, and
inflexible networks!
• Little opportunity for • Vendor hegemony • Result:
innovation and lock-in Static, rigid, and
inflexible networks
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8. What Can We Do About This?
• Whine, bitch, moan App
App App
Operating System
• Stop using the network
• Open that sucker up: But how? Closed
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9. How do we open it up?
Separate Control and Forwarding Planes
Moving control functionality to centralized controller
• Removing control software Controller
from device and putting it
Control
into a controller
• With SDN, the device
Control
handles the forwarding
and data planes
Data
• With SDN, the controller Forwarding
Device
hosts the control plane
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10. Networks Today
• Autonomous
devices
Control
• All control Data
Control
functionality in Control
Forwarding Data
individual devices Data Forwarding
Forwarding
• Fully distributed Control
control, but hard
to innovate and
Data
Control
Forwarding
evolve Data
Forwarding
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11. Open Networking via SDN App App App App
• Simplified devices
Controller
• All control
functionality in Data
controller Forwarding Data
Forwarding
•
Data
Enforcement Forwarding
implemented by
devices
Data
• Open environment Data
Forwarding
for innovation Forwarding
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12. SDN: The Big Picture
App App App App App
• A network
Application
operating system Network Operating System
Control
• A suite of network Openflow API
applications Data Data
Forwarding
•
Forwarding
Communication
between Data
Data
controller and
Forwarding
Forwarding
devices via
Openflow API Data
Forwarding Forwarding / Data / Device / Infrastructure
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13. SDN Intro: Part way there
• Part II: How does this SDN crap actually work?
Or, “This was super totally lame, I want more information!”
• Part III: Wait – Who stole my SDN?!
Or, “What about these alternative definitions of SDN?”
• Part IV: SDN, Schmesh-DN. Why should I care?
Or, “Yawn. Boooring. Give me one good reason why I should care
and not still punch you.”
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14. About Tallac Networks
• Consulting and training services
• SDN enterprise deployment solutions
Contact us:
o www.tallac.com
o Tallac Networks
 6528 Lonetree Blvd
 Rocklin, CA 95765
 916.757.6350
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15. Tallac Networks Confidential