[ 1624.153940] br0: port 1(dummy0) entered blocking state
[ 1624.153988] br0: port 1(dummy0) entered disabled state
[ 1624.154028] dummy0: entered allmulticast mode
[ 1624.154076] dummy0: entered promiscuous mode
[ 1624.156981] br0: port 1(dummy0) entered blocking state
[ 1624.157045] br0: port 1(dummy0) entered forwarding state
[ 1624.352534] dummy0: left allmulticast mode
[ 1624.352608] dummy0: left promiscuous mode
[ 1624.352670] br0: port 1(dummy0) entered disabled state