OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-91ab10-0): addr:9e:51:c3:af:87:bf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:1a:ce:2b:bd:8f:41
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
