OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9157ad-0): addr:fa:84:37:15:cf:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d2:03:a8:72:99:6d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
