[ 1862.309925] br0: port 1(dummy0) entered blocking state
[ 1862.309964] br0: port 1(dummy0) entered disabled state
[ 1862.309998] dummy0: entered allmulticast mode
[ 1862.310052] dummy0: entered promiscuous mode
[ 1862.313209] br0: port 1(dummy0) entered blocking state
[ 1862.313241] br0: port 1(dummy0) entered forwarding state
[ 1862.548021] dummy0: left allmulticast mode
[ 1862.548057] dummy0: left promiscuous mode
[ 1862.548085] br0: port 1(dummy0) entered disabled state