[ 1828.630945] br0: port 1(dummy0) entered blocking state
[ 1828.631031] br0: port 1(dummy0) entered disabled state
[ 1828.631098] dummy0: entered allmulticast mode
[ 1828.631182] dummy0: entered promiscuous mode
[ 1828.634625] br0: port 1(dummy0) entered blocking state
[ 1828.634656] br0: port 1(dummy0) entered forwarding state
[ 1828.852531] dummy0: left allmulticast mode
[ 1828.852625] dummy0: left promiscuous mode
[ 1828.852687] br0: port 1(dummy0) entered disabled state