[ 1913.527621] br0: port 1(dummy0) entered blocking state
[ 1913.527667] br0: port 1(dummy0) entered disabled state
[ 1913.527705] dummy0: entered allmulticast mode
[ 1913.527751] dummy0: entered promiscuous mode
[ 1913.531388] br0: port 1(dummy0) entered blocking state
[ 1913.531449] br0: port 1(dummy0) entered forwarding state
[ 1913.807193] dummy0: left allmulticast mode
[ 1913.807227] dummy0: left promiscuous mode
[ 1913.807258] br0: port 1(dummy0) entered disabled state