OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d8e85b-0): addr:82:4f:ae:cd:6e:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:52:15:37:81:1c:f7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
