[ 2277.919648] br0: port 1(dummy0) entered blocking state
[ 2277.924798] br0: port 1(dummy0) entered disabled state
[ 2277.930142] device dummy0 entered promiscuous mode
[ 2277.995348] br0: port 1(dummy0) entered blocking state
[ 2278.000480] br0: port 1(dummy0) entered forwarding state
[ 2278.207183] br0: port 1(dummy0) entered disabled state
[ 2278.294018] device dummy0 left promiscuous mode
[ 2278.298601] br0: port 1(dummy0) entered disabled state