OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-2ca19c-0): addr:12:71:a9:b3:37:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-388844-0): addr:3a:31:03:91:89:7f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2a:82:b5:5a:12:5d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
