OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7c405e-0): addr:f6:66:cd:c4:7c:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d6:26:ef:78:0e:f1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
