OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6619b8-0): addr:f2:18:00:ec:fc:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-2c4567-0): addr:da:0a:3d:37:8b:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4e:f9:c7:f2:99:c8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
