OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-cac152-0): addr:0a:47:f8:b8:e7:9f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-2269f9-0): addr:72:3d:01:43:85:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:aa:b5:9b:e6:1d:0a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
