OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f90cdf-0): addr:02:22:cf:85:65:0a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-5f259f-0): addr:7e:d9:d2:08:80:20
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-80993c-0): addr:a6:a5:7a:58:a3:5b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fa:11:99:22:cb:24
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
