OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8c2940-0): addr:9a:59:1d:72:ce:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ca:72:47:0e:06:7a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
