2016-08-19 14:19:31.621 1 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-a9d2afe6-de72-49e8-9e89-45c631c889f9 - - - - -] Mapping physical network physnet1 to bridge br-ex
2016-08-19 14:19:32.617 1 ERROR neutron.agent.ovsdb.impl_vsctl [req-a9d2afe6-de72-49e8-9e89-45c631c889f9 - - - - -] Unable to execute ['ovs-vsctl', '--timeout=10', '--oneline', '--format=json', '--', '--columns=type', 'list', 'Interface', 'int-br-ex']. Exception: Exit code: 1; Stdin: ; Stdout: ; Stderr: ovs-vsctl: no row "int-br-ex" in table Interface