[ 1803.083019] br0: port 1(dummy0) entered blocking state
[ 1803.083070] br0: port 1(dummy0) entered disabled state
[ 1803.083098] dummy0: entered allmulticast mode
[ 1803.083145] dummy0: entered promiscuous mode
[ 1803.086451] br0: port 1(dummy0) entered blocking state
[ 1803.086516] br0: port 1(dummy0) entered forwarding state
[ 1803.307975] dummy0: left allmulticast mode
[ 1803.308011] dummy0: left promiscuous mode
[ 1803.308042] br0: port 1(dummy0) entered disabled state