OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-986697-0): addr:7e:3a:09:b4:1e:a8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-1e2bdb-0): addr:5a:02:65:46:cc:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d6:a6:a3:1c:e8:4f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
