OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-24a5fd-0): addr:22:d5:4f:0e:96:25
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-10bfce-0): addr:5e:fd:00:74:88:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5e:f2:e6:bd:ca:32
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
