OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-404c22-0): addr:de:38:00:b1:b3:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-159bc0-0): addr:6a:65:59:08:31:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0a:f5:ea:1a:8d:32
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
