[ 1727.576659] br0: port 1(dummy0) entered blocking state
[ 1727.576696] br0: port 1(dummy0) entered disabled state
[ 1727.576734] dummy0: entered allmulticast mode
[ 1727.576786] dummy0: entered promiscuous mode
[ 1727.580214] br0: port 1(dummy0) entered blocking state
[ 1727.580280] br0: port 1(dummy0) entered forwarding state
[ 1727.802204] dummy0: left allmulticast mode
[ 1727.802250] dummy0: left promiscuous mode
[ 1727.802281] br0: port 1(dummy0) entered disabled state