During my troubleshooting on neutron-plugin-openvswitch-agent I stumbled across two utilities/scripts that I definitely want to take a look at. Hopefully I’ll get some time in mid-December to play with them and post my experiences.
Debug Helper Script for Neutron - extends python-neutronclient to allow for deeper control of Neutron commands during troubleshooting. You can create, manipulate, and destroy probes on whatever the L2 switch is.
ovs-sandbox - allows for mucking with Open vSwitch in a quasi-virtual environment. The script can construct a software simulated network environment and is used in the Open vSwitch Advanced Features Tutorial.