OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-67cd36-0): addr:6a:ff:df:71:32:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-e5fcb5-0): addr:36:40:41:8d:35:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:aa:ae:56:31:c9:41
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
