OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-cce53f-0): addr:f2:28:9c:06:11:4f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-0cf764-0): addr:16:69:e3:45:d5:73
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:42:d3:2b:3c:60:dc
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
