OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-944820-0): addr:5a:6c:9b:86:d0:23
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-5618e7-0): addr:7e:97:6e:6a:bc:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-41c638-0): addr:5e:10:e2:41:a8:a4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:46:9c:06:ff:00:2a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
