[ 1660.570136] br0: port 1(dummy0) entered blocking state
[ 1660.570188] br0: port 1(dummy0) entered disabled state
[ 1660.570219] dummy0: entered allmulticast mode
[ 1660.570274] dummy0: entered promiscuous mode
[ 1660.573000] br0: port 1(dummy0) entered blocking state
[ 1660.573062] br0: port 1(dummy0) entered forwarding state
[ 1660.756928] dummy0: left allmulticast mode
[ 1660.756976] dummy0: left promiscuous mode
[ 1660.757005] br0: port 1(dummy0) entered disabled state