OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d39b5b-0): addr:a6:45:eb:57:29:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-127282-0): addr:16:96:f1:2b:0c:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-61eba4-0): addr:e6:5d:0d:98:fe:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ea:ae:c0:6b:07:8d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
