[ 1826.978634] br0: port 1(dummy0) entered blocking state
[ 1826.978678] br0: port 1(dummy0) entered disabled state
[ 1826.978713] dummy0: entered allmulticast mode
[ 1826.978765] dummy0: entered promiscuous mode
[ 1826.982569] br0: port 1(dummy0) entered blocking state
[ 1826.982601] br0: port 1(dummy0) entered forwarding state
[ 1827.271051] dummy0: left allmulticast mode
[ 1827.271088] dummy0: left promiscuous mode
[ 1827.271128] br0: port 1(dummy0) entered disabled state