OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-40d48e-0): addr:a6:4c:f7:d1:77:82
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3e:c4:18:cd:b2:d0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
