[ 1785.049757] br0: port 1(dummy0) entered blocking state
[ 1785.049810] br0: port 1(dummy0) entered disabled state
[ 1785.049849] dummy0: entered allmulticast mode
[ 1785.049913] dummy0: entered promiscuous mode
[ 1785.053118] br0: port 1(dummy0) entered blocking state
[ 1785.053190] br0: port 1(dummy0) entered forwarding state
[ 1785.263789] dummy0: left allmulticast mode
[ 1785.263836] dummy0: left promiscuous mode
[ 1785.263870] br0: port 1(dummy0) entered disabled state