OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6f73e5-0): addr:ee:07:91:7e:bb:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-268699-0): addr:a6:cc:78:e7:b3:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-b58ac6-0): addr:26:ca:8b:41:40:fe
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2e:77:fb:e4:43:f6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
