OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-46f401-0): addr:32:dc:26:0b:41:18
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-8c5daa-0): addr:de:d3:74:7c:f9:7b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:66:2b:de:5b:bc:43
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
