Software Defined Networks (SDN)

Nick McKeownStanford University

With thanks to: NSF, GPO,Stanford Clean Slate Program, Cisco, DoCoMo, DT, Ericsson, Google, HP, Huawei, NEC, Xilinx

Custom Hardware

Custom Hardware

Custom Hardware

Custom Hardware

Custom Hardware

OS

OS

OS

OS

OS

Network OS

Feature Feature

Network restructuring

Feature Feature

Feature Feature

Feature Feature

Feature Feature

Feature Feature

Feature Feature

Network OS

1. Open interface to packet forwarding

3. Well-defined open API2. At least one Network OS

probably many.Open- and closed-source

Software Defined Network

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

My goal today

Show two examples of research demos on top of OpenFlow/SDN

ExperimentNetwork OS: NOX

Experimental Setup

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

ExperimentNetwork OS: NOX

Experimental Setup with Slicing

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

PacketForwarding

Slicing Layer: FlowVisor

ExperimentNOX

ExperimentNOX

ExperimentNOX

Research Example #1Load-balancing as

a network primitiveNikhil Handigol, Mario Flajslik, Srini Seetharaman

LOAD-BALANCER

Load Balancing is just Smart Routing

Nikhil’s Experiment: <500 lines of codeFeature Feature

Network OS: NOX

Research Example #2Using all the wireless

capacity around usKK Yap, Masayoshi Kobayashi, Yiannis Yiakoumis, TY Huang

KK’s Experiment: <250 lines of code

WiMax

Feature

Network OS: NOX

More infoOpen Networking Foundation opennetworkingfoundation.org

More videosopenflow.org/videos

Thank You!