OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-05f335-0): addr:ca:da:2b:c6:51:0a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-46bc73-0): addr:da:48:4d:0c:51:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ea:30:6e:5b:50:94
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
