[ 1559.878244] br0: port 1(dummy0) entered blocking state
[ 1559.878334] br0: port 1(dummy0) entered disabled state
[ 1559.878407] dummy0: entered allmulticast mode
[ 1559.878506] dummy0: entered promiscuous mode
[ 1559.881192] br0: port 1(dummy0) entered blocking state
[ 1559.881257] br0: port 1(dummy0) entered forwarding state
[ 1560.076633] dummy0: left allmulticast mode
[ 1560.076730] dummy0: left promiscuous mode
[ 1560.076768] br0: port 1(dummy0) entered disabled state