OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f69772-0): addr:be:66:de:af:7a:70
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-30bd13-0): addr:02:ef:79:36:2f:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-cc0a50-0): addr:5e:62:97:be:53:8d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7e:41:7b:31:54:17
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
