OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7db753-0): addr:3a:db:65:4f:19:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-78438f-0): addr:b6:59:21:b2:9d:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-1c612d-0): addr:62:bc:66:70:56:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0a:55:8f:eb:5e:c6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
