OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b663ec-0): addr:16:de:34:ea:6c:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-93735e-0): addr:fa:54:bc:d0:aa:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-00c991-0): addr:2a:2b:b2:5c:e1:9f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:56:4c:3f:6e:6f:5e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
