OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-89ec01-0): addr:d2:8a:27:12:cd:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:26:fe:a4:a8:14:d7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
