OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-0f7fe2-0): addr:ce:04:5f:ee:0d:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d6:02:e4:96:ca:98
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
