DB
ovs-vsctl list open_vswitch
ovs-vsctl list interface
ovs-vsctl --columns=ofport,name list Interface
ovs-vsctl --columns=ofport,name --format=table list Interface
ovs-vsctl -f csv --no-heading --columns=_uuid list controller
ovs-vsctl --format=table --columns=name,mac_in_use find Interface name=br-dpdk1
ovs-vsctl get interface vhub656c3cb-23 name