[ 1738.086057] br0: port 1(dummy0) entered blocking state
[ 1738.086101] br0: port 1(dummy0) entered disabled state
[ 1738.086152] dummy0: entered allmulticast mode
[ 1738.086208] dummy0: entered promiscuous mode
[ 1738.089951] br0: port 1(dummy0) entered blocking state
[ 1738.090018] br0: port 1(dummy0) entered forwarding state
[ 1738.367894] dummy0: left allmulticast mode
[ 1738.367938] dummy0: left promiscuous mode
[ 1738.368001] br0: port 1(dummy0) entered disabled state