OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-388e30-0): addr:52:ce:ba:82:e8:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6b99fc-0): addr:72:0e:19:50:98:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-28c918-0): addr:8e:c5:0f:66:f1:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b2:32:17:47:52:60
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
