[ 1928.771618] br0: port 1(dummy0) entered blocking state
[ 1928.771656] br0: port 1(dummy0) entered disabled state
[ 1928.771708] dummy0: entered allmulticast mode
[ 1928.771783] dummy0: entered promiscuous mode
[ 1928.775397] br0: port 1(dummy0) entered blocking state
[ 1928.775420] br0: port 1(dummy0) entered forwarding state
[ 1929.033873] dummy0: left allmulticast mode
[ 1929.033914] dummy0: left promiscuous mode
[ 1929.033940] br0: port 1(dummy0) entered disabled state