OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-fc0738-0): addr:5e:d3:a3:52:38:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d6:8b:33:da:70:90
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
