OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-43d353-0): addr:56:00:52:5b:9b:52
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-3e110c-0): addr:c2:a2:bf:96:b0:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-f7dc12-0): addr:0e:47:3e:90:60:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:82:a0:0d:aa:0c:1e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
