OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8ec1a8-0): addr:5a:b7:c9:57:e9:7e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-f4a56c-0): addr:1e:da:39:1e:e2:3c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-7018ca-0): addr:92:f4:7a:ac:64:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:a6:6f:e9:9f:a8:23
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
