OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-80c97c-0): addr:ce:50:e4:10:f2:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-55af76-0): addr:c6:20:41:51:49:f7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:02:c6:4b:cb:65:67
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
