A bit more of the Raspberry Pi as an OVS Switch carries on from part 3 and finishes the config before starting to configure the switch at the command line and then see this on an OpenDayLight SDN Controller.
Some useful commands:
lsmod | grep openvswitch
sudo modprobe --show-depends openvswitch
sudo ovs-vsctl show
sudo ovs-vsctl add-br br0
sudo ovs-vsctl add-port br0 eth1
sudo ovs-vsctl set-controller tcp:localhost:6633
sudo ovs-dpctl show
sudo ovs-dpctl dump-flows
sudo ovs-dpctl dump-flows -m ovs-system
sudo ovs-ofctl dump-ports br0
sudo ovs-ofctl dump-flows br0