OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5078af-0): addr:f6:7c:bf:0f:07:70
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-74944c-0): addr:ba:c2:20:24:e3:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-9d4a05-0): addr:96:ea:08:10:38:cb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fa:10:dc:82:da:63
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
