OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7ed0ec-0): addr:c2:b0:b5:bf:f7:16
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-aa082e-0): addr:7a:f3:87:51:2d:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-000076-0): addr:f2:38:65:a2:8e:13
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:9e:de:05:40:d5:0d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
