OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a901be-0): addr:e6:af:bd:3a:e5:40
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d032c5-0): addr:72:b5:aa:cc:13:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-fd4963-0): addr:fa:a0:86:3a:15:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fa:d2:04:fe:16:9a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
