OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-d4364c-0): addr:9e:ec:06:a8:96:9c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:da:10:fb:bd:28:9a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
