[ 1815.906710] br0: port 1(dummy0) entered blocking state
[ 1815.906783] br0: port 1(dummy0) entered disabled state
[ 1815.906852] dummy0: entered allmulticast mode
[ 1815.906943] dummy0: entered promiscuous mode
[ 1815.910416] br0: port 1(dummy0) entered blocking state
[ 1815.910460] br0: port 1(dummy0) entered forwarding state
[ 1816.140891] dummy0: left allmulticast mode
[ 1816.140925] dummy0: left promiscuous mode
[ 1816.140966] br0: port 1(dummy0) entered disabled state