OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9a0c85-0): addr:e6:d4:b6:f0:f0:5f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-968d9d-0): addr:d6:73:5e:2a:65:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-b99910-0): addr:ba:4f:4c:de:c5:e8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7e:d7:1f:6d:04:8c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
