[ 1784.849930] br0: port 1(dummy0) entered blocking state
[ 1784.849961] br0: port 1(dummy0) entered disabled state
[ 1784.849982] dummy0: entered allmulticast mode
[ 1784.850018] dummy0: entered promiscuous mode
[ 1784.853688] br0: port 1(dummy0) entered blocking state
[ 1784.853709] br0: port 1(dummy0) entered forwarding state
[ 1785.129830] dummy0: left allmulticast mode
[ 1785.129856] dummy0: left promiscuous mode
[ 1785.129874] br0: port 1(dummy0) entered disabled state