OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ac6eca-0): addr:ca:81:8d:aa:d2:1e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-89d408-0): addr:de:6b:9d:ca:ee:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5e:ec:38:db:e7:af
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
