OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-1c3ad5-0): addr:3a:1c:24:77:49:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ae:e0:07:d4:47:a0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
