OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5ec8f2-0): addr:32:31:5a:93:2d:4a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fd066f-0): addr:22:9f:3d:fd:8e:f1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:81:b3:71:72:27
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
