OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5319f1-0): addr:42:6c:e8:1c:d1:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4e:cf:99:f9:b6:81
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
