[ 1613.019052] br0: port 1(dummy0) entered blocking state
[ 1613.019093] br0: port 1(dummy0) entered disabled state
[ 1613.019125] dummy0: entered allmulticast mode
[ 1613.019178] dummy0: entered promiscuous mode
[ 1613.021955] br0: port 1(dummy0) entered blocking state
[ 1613.021992] br0: port 1(dummy0) entered forwarding state
[ 1613.223969] dummy0: left allmulticast mode
[ 1613.223998] dummy0: left promiscuous mode
[ 1613.224028] br0: port 1(dummy0) entered disabled state