[ 1713.773869] br0: port 1(dummy0) entered blocking state
[ 1713.773901] br0: port 1(dummy0) entered disabled state
[ 1713.773937] dummy0: entered allmulticast mode
[ 1713.773980] dummy0: entered promiscuous mode
[ 1713.776677] br0: port 1(dummy0) entered blocking state
[ 1713.776736] br0: port 1(dummy0) entered forwarding state
[ 1713.952927] dummy0: left allmulticast mode
[ 1713.952954] dummy0: left promiscuous mode
[ 1713.952986] br0: port 1(dummy0) entered disabled state