[ 1814.961491] br0: port 1(dummy0) entered blocking state
[ 1814.961567] br0: port 1(dummy0) entered disabled state
[ 1814.961636] dummy0: entered allmulticast mode
[ 1814.961719] dummy0: entered promiscuous mode
[ 1814.965330] br0: port 1(dummy0) entered blocking state
[ 1814.965368] br0: port 1(dummy0) entered forwarding state
[ 1815.236580] dummy0: left allmulticast mode
[ 1815.236618] dummy0: left promiscuous mode
[ 1815.236651] br0: port 1(dummy0) entered disabled state