[ 1658.573401] br0: port 1(dummy0) entered blocking state
[ 1658.573476] br0: port 1(dummy0) entered disabled state
[ 1658.573545] dummy0: entered allmulticast mode
[ 1658.573627] dummy0: entered promiscuous mode
[ 1658.576403] br0: port 1(dummy0) entered blocking state
[ 1658.576437] br0: port 1(dummy0) entered forwarding state
[ 1658.766764] dummy0: left allmulticast mode
[ 1658.766824] dummy0: left promiscuous mode
[ 1658.766893] br0: port 1(dummy0) entered disabled state