OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-4e1576-0): addr:f6:6a:20:74:0a:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:42:c9:da:04:99:10
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
