I can never seem to get enough OpenStack networking information. I have been collecting various notes in Evernote for 2 years now on OpenStack networking. Having built and destroyed OpenStack Diablo, Essex, Folsom, and now Grizzly at Gap with much pain, I decided to share my notes in a consolidated format. My hope is this will help make OpenStack Quantum network design more tenable for folks trying to be planful with their network design and OpenStack. You can see the full presentation embedded from scribd below or you can access it here.