OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ec3c17-0): addr:2a:32:45:07:ea:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:be:dc:fd:f4:6b:5a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
