OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-404c22-0): addr:2e:bd:13:f3:d5:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-3f7c19-0): addr:0a:0f:b9:6a:05:5e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:9e:15:fb:83:38:42
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
