OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-66e142-0): addr:6e:d4:d5:07:e1:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-5bdcc3-0): addr:76:cd:84:05:41:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-4d28b1-0): addr:a2:04:df:26:04:b7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:1a:c3:11:a8:62:8f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
