[ 1754.928491] br0: port 1(dummy0) entered blocking state
[ 1754.928570] br0: port 1(dummy0) entered disabled state
[ 1754.928639] dummy0: entered allmulticast mode
[ 1754.928727] dummy0: entered promiscuous mode
[ 1754.932544] br0: port 1(dummy0) entered blocking state
[ 1754.932578] br0: port 1(dummy0) entered forwarding state
[ 1755.197574] dummy0: left allmulticast mode
[ 1755.197607] dummy0: left promiscuous mode
[ 1755.197633] br0: port 1(dummy0) entered disabled state