OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9588eb-0): addr:3e:31:40:15:4e:89
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e2:5f:df:74:32:7e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
