OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6c8b48-0): addr:32:94:2e:0e:c5:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-386a1a-0): addr:76:d9:9d:0e:2c:56
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7e:58:87:66:99:69
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
