OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-149f8b-0): addr:12:f7:bf:fb:5f:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2e:fe:87:07:8c:63
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
