OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-657115-0): addr:72:d7:34:da:ff:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-c76f25-0): addr:c2:9f:f4:f3:27:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-345392-0): addr:46:f2:35:e5:d9:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e6:26:4a:cf:8d:c6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
