OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a0428a-0): addr:2a:b3:51:7b:b0:63
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:de:99:0d:2f:06:8f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
