OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-c76f25-0): addr:12:46:ab:10:a4:3e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-345392-0): addr:d2:af:92:8b:07:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-9838f2-0): addr:de:ce:ca:72:d4:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:de:7e:3e:fd:4f:32
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
