OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-50d38f-0): addr:9e:91:1b:6f:6b:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-8f0d40-0): addr:8e:3b:58:7a:18:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-9f35b9-0): addr:7e:5f:87:41:48:c3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2e:f8:ee:a8:d8:18
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
