OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-810690-0): addr:5e:47:de:f8:e5:57
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-a37c0e-0): addr:ee:bc:ce:77:06:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-1685b9-0): addr:3e:c4:a6:2c:8d:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:9a:89:6a:13:15:9e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
