Just discovered a tool developed by OpenFlow researchers and engineers called Flowsim. It’s been around for a couple of years, I’ve just never got around to using it. It’s a tool that helps you visually learn OpenFlow. It runs entirely in your browser, and all you need is a free account to get started.
You can configure OpenFlow switches and setup packets to be sent through the OpenFlow pipeline. If you’re curious about the underworkings of OpenFlow and don’t feel like setting up your own lab, definitely check it out.
For some quick video instruction, check out Flowgrammable on Youtube.