[ 1896.273068] br0: port 1(dummy0) entered blocking state
[ 1896.273101] br0: port 1(dummy0) entered disabled state
[ 1896.273124] dummy0: entered allmulticast mode
[ 1896.273165] dummy0: entered promiscuous mode
[ 1896.276653] br0: port 1(dummy0) entered blocking state
[ 1896.276673] br0: port 1(dummy0) entered forwarding state
[ 1896.561299] dummy0: left allmulticast mode
[ 1896.561356] dummy0: left promiscuous mode
[ 1896.561405] br0: port 1(dummy0) entered disabled state