OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d97b5d-0): addr:e2:64:07:c2:6e:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:ae:2d:34:eb:7f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
