OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6172fd-0): addr:4a:c5:7d:1e:43:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8e:55:c7:18:57:3a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
