OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8b32bf-0): addr:26:bd:05:7d:d5:76
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4a:97:1e:7b:f2:95
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
