OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a81ff7-0): addr:7a:01:f3:a1:56:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:6a:77:32:a7:46:53
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
