OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a4a716-0): addr:5a:b0:de:7f:d3:52
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fa57d8-0): addr:5a:4d:7d:93:72:76
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c2:a4:08:49:6b:ab
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
