OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e84d49-0): addr:da:1e:5c:46:18:9f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-be467c-0): addr:5e:ce:8a:03:dd:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:22:8c:e1:3b:10:eb
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
