OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7ff5ed-0): addr:16:86:e2:25:67:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:42:05:5f:89:99:46
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
