[ 1831.850835] br0: port 1(dummy0) entered blocking state
[ 1831.850886] br0: port 1(dummy0) entered disabled state
[ 1831.850922] dummy0: entered allmulticast mode
[ 1831.850982] dummy0: entered promiscuous mode
[ 1831.854772] br0: port 1(dummy0) entered blocking state
[ 1831.854837] br0: port 1(dummy0) entered forwarding state
[ 1832.142759] dummy0: left allmulticast mode
[ 1832.142799] dummy0: left promiscuous mode
[ 1832.142829] br0: port 1(dummy0) entered disabled state