[ 2005.273186] br0: port 1(dummy0) entered blocking state
[ 2005.273270] br0: port 1(dummy0) entered disabled state
[ 2005.273343] dummy0: entered allmulticast mode
[ 2005.273450] dummy0: entered promiscuous mode
[ 2005.277325] br0: port 1(dummy0) entered blocking state
[ 2005.277359] br0: port 1(dummy0) entered forwarding state
[ 2005.567755] dummy0: left allmulticast mode
[ 2005.567792] dummy0: left promiscuous mode
[ 2005.567837] br0: port 1(dummy0) entered disabled state