OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-684480-0): addr:8e:9f:d8:5f:98:0a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-920673-0): addr:26:b0:45:05:25:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:16:66:83:05:57:e4
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
