[ 1814.096488] br0: port 1(dummy0) entered blocking state
[ 1814.096523] br0: port 1(dummy0) entered disabled state
[ 1814.096556] dummy0: entered allmulticast mode
[ 1814.096609] dummy0: entered promiscuous mode
[ 1814.099985] br0: port 1(dummy0) entered blocking state
[ 1814.100019] br0: port 1(dummy0) entered forwarding state
[ 1814.312914] dummy0: left allmulticast mode
[ 1814.312982] dummy0: left promiscuous mode
[ 1814.313075] br0: port 1(dummy0) entered disabled state