OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8e3a2c-0): addr:a6:d0:0d:3b:6a:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-55aea4-0): addr:5a:46:90:c4:f4:0e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:72:93:01:d3:06:bb
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
