OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-30d813-0): addr:96:16:51:02:37:1c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ba:4c:aa:6e:c7:9b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
