OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7fa596-0): addr:3e:16:d3:80:b4:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-49cde4-0): addr:8a:3f:31:79:c9:2d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-395dd3-0): addr:de:17:5b:0a:6f:b2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:7b:13:08:06:50
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
