OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-dc77ce-0): addr:9a:63:d8:72:2f:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0a:82:20:0e:5b:4a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
