OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-dd4306-0): addr:f2:af:3e:7c:31:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:be:43:e1:4b:d5:fc
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
