OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bd30a8-0): addr:2e:b5:7b:4c:61:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-cdd09c-0): addr:fa:a8:6e:5a:61:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-a43628-0): addr:92:06:24:1f:49:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:22:80:56:4d:ca:7f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
