OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-fdf940-0): addr:e2:29:cf:bd:da:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-b03989-0): addr:c6:a8:26:c1:bb:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:26:4c:56:63:af:f0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
