The document discusses Software Defined Networking (SDN) presented by Matt Bynum at BarCamp Huntsville 2014, highlighting its architecture, concepts, and the challenges it addresses, including scalability, complexity, and vendor lock-in. It emphasizes the importance of understanding SDN for networking professionals, developers, and IT managers, providing insights on resources and actions they can take. Key technologies like OpenFlow and the Clean Slate program are mentioned as foundational elements in designing future internet infrastructure.

1. Demystifying Software Defined Networking
BARCAMP HUNTSVILLE 2014
Matt Bynum, CCIE #21753

3. Overlays Openflow
ASIC’s SDK’s
Controllers Orchestration
Virtualization and more…

4. The network as we have known it…
Data PlaneControl Plane
Forwarding Path
Forwarding Decision
Store Information
L2/L3 forwarding tables
Build Information
ARP, routing protocols,
MAC Learning
Port 1
Port 2
Port 3

6. What problem is SDN
really trying to solve?

7. 1. Scalability

8. 2. Complexity

9. 3. Vendor Lock-in

11. In 2008, created the Clean Slate Program.
“…explore what kind of Internet we would design if we
were to start with a clean slate and 20-30 years of
hindsight.”
Programmable Mobile
Internet
Mobile Social Networking
Stanford Experimental
Data Center Lab
Internet
Infrastructure
cleanslate.standford.edu
Software Defined Networking
&

12. Server Switch
Openflow Controller Architecture
Openflow Controller S/W
Northbound API
App #1 App #2 App #3
Openflow S/W Agent
Southbound API Southbound API
opennetworking.org

13. TL;DR Software Defined Networking (SDN)
Data Plane
Forwarding Path
Control Plane
Forwarding Decision
Store Information
L2/L3 forwarding tables
Build Information
ARP, routing protocols, MAC Learning
Port 1
Port 2
Port 3
OpenFlow
API’s
OpenFlow
API’s

14. The Openflow End Goal
Controller orchestrating the network devices
Openflow Controller S/W
App #1 App #2 App #3
O/F Agent
ASIC HW
O/F Agent
ASIC HW
O/F Agent
ASIC HW
O/F Agent
ASIC HW
O/F Agent
ASIC HW
Network Device Network Device Network Device Network Device Network Device

15. Old School Networking
Major Business
App
ASIC HW
ASIC HW
ASIC HW
ASIC HW
ASIC HW
ASIC HW
Users
Users
Users
Switches
Control
Control
Control
Control
Control
Control

16. OpenFlow in Action
Openflow Controller S/W
Major Business
App
O/F Agent
ASIC HW
O/F Agent
ASIC HW
O/F Agent
ASIC HW
O/F Agent
ASIC HW
O/F Agent
ASIC HW
O/F Agent
ASIC HW
Northbound API Southbound API
Integration
with Controller
Users
Users
Users

18. opendaylight.org
An Open Source Controller

19. Smells like OpenStack.
Cisco
Brocade
Citrix
Ericsson
IBM
Juniper
Red Hat
Microsoft
NEC
VMWare
A10, Adva, Arista,
Ciena,
Contexstream,
Coriant, Cyan, Dell,
Fujitsu, Guavus, HP,
Huawei, In Cybe
Technologies, Intel,
Midokura, Nuage,
Pantheon, Plexxi,
Plumgrid, Qosmos,
Radware, Versa, ZTE
Platinum SilverGold

20. If you are a networking nerd:
• Learn the SDN architecture and concepts
• Maybe learn some Python and/or Java
• Play around with Puppet for orchestration
• Download and install Open Daylight
• Don’t worry, programmers aren’t
replacing you

21. If you are a cloud application developer:
• Learn the SDN architecture and concepts
• Dig into the Openflow API’s
• Download and install Open Daylight
• Don’t be mean to the network nerds…pretty please

22. If you are an IT Manager/Director/Bossman
• Ask your application providers if they
are planning to support SDN, and if so,
which vendor
• Ask your networking vendor/partner
what they are planning with SDN
• Have your Network nerds and
developers learn SDN architecture
concepts

23. Change. It happens.

24. Thank you!
linkedin.com/in/mattbynum/
google.com/+MattBynum/
slideshare.net/mbynum/