OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-2fe6c8-0): addr:4e:5e:ef:64:7d:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fb9898-0): addr:92:98:a2:17:8a:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d2:7f:8d:05:8b:77
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
