OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-61e048-0): addr:b6:3f:41:1b:4d:dc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-09ce5d-0): addr:4e:2c:de:4d:a6:c4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-e200ec-0): addr:be:a8:8d:66:32:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:02:50:a9:29:37:0b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
