OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9dc99c-0): addr:f6:75:cb:52:6d:f2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ca:3b:a7:b2:a4:55
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
