[ 1856.763203] br0: port 1(dummy0) entered blocking state
[ 1856.763237] br0: port 1(dummy0) entered disabled state
[ 1856.763260] dummy0: entered allmulticast mode
[ 1856.763299] dummy0: entered promiscuous mode
[ 1856.766981] br0: port 1(dummy0) entered blocking state
[ 1856.767001] br0: port 1(dummy0) entered forwarding state
[ 1857.034194] dummy0: left allmulticast mode
[ 1857.034222] dummy0: left promiscuous mode
[ 1857.034246] br0: port 1(dummy0) entered disabled state