OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bdc194-0): addr:0a:03:f8:3f:27:e4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-b36a49-0): addr:4e:d7:a2:33:8b:5e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-67ef43-0): addr:5a:16:44:78:ff:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fa:ad:f1:4b:5c:a9
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
