[ 2038.220065][T10888] br0: port 1(dummy0) entered blocking state
[ 2038.220252][T10888] br0: port 1(dummy0) entered disabled state
[ 2038.220399][T10888] dummy0: entered allmulticast mode
[ 2038.221395][T10888] dummy0: entered promiscuous mode
[ 2038.250681][T10889] br0: port 1(dummy0) entered blocking state
[ 2038.251191][T10889] br0: port 1(dummy0) entered forwarding state
[ 2040.229798][   T12] dummy0: left allmulticast mode
[ 2040.232129][   T12] dummy0: left promiscuous mode
[ 2040.232410][   T12] br0: port 1(dummy0) entered disabled state