[ 1589.484719] br0: port 1(dummy0) entered blocking state
[ 1589.484766] br0: port 1(dummy0) entered disabled state
[ 1589.484808] dummy0: entered allmulticast mode
[ 1589.484868] dummy0: entered promiscuous mode
[ 1589.487734] br0: port 1(dummy0) entered blocking state
[ 1589.487799] br0: port 1(dummy0) entered forwarding state
[ 1589.674834] dummy0: left allmulticast mode
[ 1589.674907] dummy0: left promiscuous mode
[ 1589.675005] br0: port 1(dummy0) entered disabled state