OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-e68167-0): addr:0e:c1:88:ce:1a:21
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:0f:02:d7:ad:a5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
