OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e509f9-0): addr:be:e0:b6:fd:ae:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:da:79:7b:2f:9b:06
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
