OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d085ee-0): addr:36:6f:fa:ed:5b:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-0d0e38-0): addr:06:50:6a:8a:53:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-3bbd5a-0): addr:3a:58:c8:05:bf:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:86:aa:b1:3d:17:90
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
