OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ac4d0f-0): addr:e2:db:a0:da:ad:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-0000b4-0): addr:8a:da:81:06:41:68
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-9f83c9-0): addr:be:5f:5f:7c:49:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5a:9a:87:cc:5f:12
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
