[ 1650.015893] br0: port 1(dummy0) entered blocking state
[ 1650.015943] br0: port 1(dummy0) entered disabled state
[ 1650.015976] dummy0: entered allmulticast mode
[ 1650.016028] dummy0: entered promiscuous mode
[ 1650.018531] br0: port 1(dummy0) entered blocking state
[ 1650.018594] br0: port 1(dummy0) entered forwarding state
[ 1650.195929] dummy0: left allmulticast mode
[ 1650.195964] dummy0: left promiscuous mode
[ 1650.195990] br0: port 1(dummy0) entered disabled state