OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-726e2a-0): addr:ce:9f:05:9b:b0:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:9e:8f:38:36:3a:f3
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
