[ 1736.004040] br0: port 1(dummy0) entered blocking state
[ 1736.004117] br0: port 1(dummy0) entered disabled state
[ 1736.004184] dummy0: entered allmulticast mode
[ 1736.004273] dummy0: entered promiscuous mode
[ 1736.007576] br0: port 1(dummy0) entered blocking state
[ 1736.007621] br0: port 1(dummy0) entered forwarding state
[ 1736.208777] dummy0: left allmulticast mode
[ 1736.208816] dummy0: left promiscuous mode
[ 1736.208845] br0: port 1(dummy0) entered disabled state