OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a80c44-0): addr:32:90:92:6c:59:00
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-840343-0): addr:b6:86:a5:7d:ce:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:6a:cc:f7:9a:16:27
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
