Stanford Seminar - Software-Defined Networking at the Crossroads

Colloquium on Computer Systems Seminar Series (EE380) presents the current research in design, implementation, analysis, and use of computer systems. Topics range from integrated circuits to operating systems and programming languages. It is free and open to the public, with new lectures each week.

Introduction.
Co-Conspirators.
Caveats and Clarifications.
Architecture and Academia Don't Mix.
Outline.
What is the Root Cause?.
The Two Networking "Planes".
Data Plane Abstractions: Layers.
Layers Key to Internet's Success.
Today's Control Plane: No Abstractions.
Abstractions For Control Plane?.
SDN: Two Control Plane Abstractions.
SDN is "Layers" for Control Plane.
Clean Separation of Concerns.
Major Change in Paradigm.
Looking Back After Five Years.
The Role of Control Programs.
Simple Example: Access Control.
Network Virtualization.
Virtualization Simplifies Control Program.
Software Defined Network.
Virtualization is Killer App for SDN.
Long-Term Implications.
Homogeneous Network.
Three Important Logical Interfaces.
How Are These Interfaces Implemented?.
Incorporate MPLS Approach into SDN.
Claim #1: Core Can Focus on Delivery.
Software Switches Quite Common.
Software Switches Getting Faster.
Claim #2: Edge Can Use Software.
Examples.
Software vs Hardware.
Long-Term Opportunity.
The Myth of the Internet's Dataplane.
The Reality of the Internet's Dataplane.
Middleboxes As Common As Switches.
Four Important Facts.
One Inescapable Conclusion.
How Did We Get Here?.
Why Is Software Forwarding Better?.
SDN and Networking at the Crossroads.