OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f1056e-0): addr:1a:20:24:60:08:73
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-c45ecc-0): addr:56:9d:60:39:30:2e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ba:35:b8:7a:5f:7c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
