OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e84e96-0): addr:ca:9a:1a:73:8b:97
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(patch-br-int-to): addr:9a:87:29:8f:d5:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:42:69:10:4a:1e:51
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
