OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-00fb02-0): addr:02:19:47:95:30:04
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-ec1dec-0): addr:e6:b4:8f:0b:ec:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:e2:4a:66:78:50
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
