...
To undo any of the above OVS operations, replace "add" in the command with "del", e.g. "add-br" becomes "del-br" and "add-port" becomes "del-port". There are many other OVS commands we won't discuss here (or yet, rather) that follow the same convention.
Lastly, to To view all running switch configurations:
Here is a presentation that covers other useful OVS commands, many of which are beyond the scope of this tutorial but might still be useful. Topics covered include bridge configuration, OpenFlow, and spanning tree to name a few.