[ 1339.000974] br0: port 1(dummy0) entered blocking state
[ 1339.001013] br0: port 1(dummy0) entered disabled state
[ 1339.001046] dummy0: entered allmulticast mode
[ 1339.001098] dummy0: entered promiscuous mode
[ 1339.004353] br0: port 1(dummy0) entered blocking state
[ 1339.004424] br0: port 1(dummy0) entered forwarding state
[ 1339.219040] dummy0: left allmulticast mode
[ 1339.219077] dummy0: left promiscuous mode
[ 1339.219107] br0: port 1(dummy0) entered disabled state