OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ff0c0f-0): addr:0e:16:1a:6c:41:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-2ad2db-0): addr:3e:6e:5a:5b:13:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:42:ec:d5:53:ec:b6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
