OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-3b8438-0): addr:26:0d:91:f8:3c:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ae:dd:03:0d:74:d8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
