OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-944820-0): addr:f2:96:d1:20:36:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-5618e7-0): addr:02:36:f2:f8:18:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-9ddf46-0): addr:16:83:c2:fb:27:ee
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d6:b5:09:4d:ce:69
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
