Overview of Software defined networking (SDN) presented at IDG's IT Roadmap.

2. IT RoadShow, Denver, June 2014
Your Speaker
• Dave Michels
• F100 Corporate IT Leadership
• Principal Analyst TalkingPointz
• Analyst and Media
• TalkingPointz
• Founded2002
• Exclusive focus on Enterprise Communications
@DaveMichels

3. IT RoadShow, Denver, June 2014
The Familiar trend of virtualization
Servers
Desktops
Networks

4. IT RoadShow, Denver, June 2014
• Agility
• Isolate Applications
• Improve Disaster Recovery
• Faster Provisioning
• Reduce cost of Support
• Green
Virtualization
Server Virtualization Benefits Desktop Virtualization Benefits
• Agility
• Isolate Applications
• Improve Disaster Recovery
• Faster Provisioning
• Reduce cost of Support
• Green

5. IT RoadShow, Denver, June 2014
Network Virtualization
● Agility
● Isolate Applications
● Improve Disaster Recovery
● Faster Provisioning
● Reduce cost of support
● Green

6. IT RoadShow, Denver, June 2014

7. IT RoadShow, Denver, June 2014
SDN: What is It?
● Software Defined Networking
● Commercialized from work done at Berkeley and Stanford Universities (2008)
● Decouples the logic and forward planes
● Centralizes network state and intelligence
● Network becomes an abstract resource

8. IT RoadShow, Denver, June 2014
Control vs. Data
Control Plane
• CPU intensive
• Low bandwidth
• General purpose hardware
• Can be centralized
Data Plane
• Low CPU
• High bandwidth
• Specialized hardware common
• Needs to be distributed

9. IT RoadShow, Denver, June 2014
OpenFlow
● Overlay New Protocols Without Disrupting Underlying Fabric
● Provides Communications Between Network Intelligence and Network Gear
● Attractive in the Data Center
o DynamicInfrastructure as a Serice
o Made Networking Behave Like Software
● The Attraction of Commodity Hardware
● One (of many) approachesto SDN

10. IT RoadShow, Denver, June 2014
Data Plane (hardware)
OpenFlow AgentControl Plane (software)
Controller
Network Switch
FlowTables
Match Rule Action CountersFlow Table Rules:
OpenFlow under the hood
1. Forward
2. Modify
3. Encap /
decapsulate
4. Drop, etc.

11. IT RoadShow, Denver, June 2014

12. IT RoadShow, Denver, June 2014
SDN Today
● Almost every technology vendor in the networking arena now has an SDN Angle
● Highly disruptive
● Immature
● Data Center Centric
● Southbound Standards
● Northbound APIs

13. IT RoadShow, Denver, June 2014
East, West
● Creates the benefits of a Layer 2
network
● Far more efficient use of BW and
resources
● SDN could enable distributed
switches to act as routers,
firewalls, load balancers

14. IT RoadShow, Denver, June 2014
Data Center Impetus
● As server virtualization has increased, so has complexity of dynamic infrastructures
● Tried and True IP Routing Breaks-Down
● SDN Provides Flexibility to Set Attributes Across the Network
● SDNs are the Natural Counterpart to Server Virtualization
● The Promise of Orchestration

15. IT RoadShow, Denver, June 2014
Orchestration
Concerned with lifecycle management operations
• Service instantiation
• Health monitoring and repair
• Elastic scaling
• VM migration
Automation - Rather than perform manually
Openstack: Collaborative effort of developers and cloud
companies to create a single cloud operating system

16. IT RoadShow, Denver, June 2014
5 Key Benefits to SDNs
1. Flexibility and Holistic Management
2. Provisioning Speed and Agility
3. Improved and More Granular Security
4. Efficiency - and Lower Operating Expenses
5. Virtual Network Services, Lowered CapEx

17. IT RoadShow, Denver, June 2014
SDN Won’t Be Contained to DC
● Enterprise Wide Implications
● Unified Communications
o Wired/Wireless
o DynamicBW IM/Voice/Video
o Any Device: Desktop/Tablet/Mobile/xDevice
● APIs make Apps Everywhere
● 60-80% of Poor End User Experience due to Network Issues

18. IT RoadShow, Denver, June 2014
SDN: It’s Gonna Be Big
● 2018 Market Forecast for SDN: $35B
● CAGR: 62% over 5 Years
● 2017: 60% of Enterprises will automate the provisioning of Security Controls
● 75% of Gartner Clients Report they are Thinking About or Evaluating SDNs

19. IT RoadShow, Denver, June 2014
The Disruptive Element
● Traditional Approach Favors Single Vendor Solutions
● Cloud-Scale Data Centers Experimented with Open Source Controllers w/ Commodity Hardware
● Programmability of previously rigid vendor networks.
● Reduced vendor lock
● Open Source initiatives

20. IT RoadShow, Denver, June 2014
Open Source Initiatives
● OpenDaylight is a community-led, open, industry-supported framework under the Linux Foundation
● Project Floodlight is the Open SDN Open Source Project supported by Big Switch Networks
● Indigo is an open source project aimed at enabling vendors to support OpenFlow on physical and
hypervisor switches
● OFTest is a testing framework and test suite for OpenFlow compliance testing

21. IT RoadShow, Denver, June 2014
Agility in Practice
● Rapidly Create & Deploy Proof of Concept and Test Networks
● Faster Response to New Techs ie. Mobile
● Security and Compliance governed From Central Location
● Lowers Operational Spend and CapEx

22. IT RoadShow, Denver, June 2014
SDN is Progressive….but Immature
● Lack of standards for full device control - no Northbound API Std (to Appl Layer)
● SDN Introduces New Security Concerns
o New Risks with Centralized Controller
o API Exposure to Attack
● Think about SDN Long Term Implications

23. IT RoadShow, Denver, June 2014
Take-Aways
● SDN Emerging Tech of Growing Importance
● SDN Will Have Disruptive Impacts
● Will facilitate agility and reduce costs
● Early Still - Barriers to Adoption Exist
● SDN Standards Are Evolving Slowly