OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-aca85a-0): addr:a2:fe:64:1b:d9:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-776972-0): addr:3e:84:4c:0f:bb:70
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b6:44:e6:96:0c:9a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
