OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-20c0de-0): addr:56:f5:6a:07:34:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ca:2e:14:41:6e:d9
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
