[ 1780.701850] br0: port 1(dummy0) entered blocking state
[ 1780.701885] br0: port 1(dummy0) entered disabled state
[ 1780.701924] dummy0: entered allmulticast mode
[ 1780.701981] dummy0: entered promiscuous mode
[ 1780.705043] br0: port 1(dummy0) entered blocking state
[ 1780.705079] br0: port 1(dummy0) entered forwarding state
[ 1780.911787] dummy0: left allmulticast mode
[ 1780.911821] dummy0: left promiscuous mode
[ 1780.911849] br0: port 1(dummy0) entered disabled state