[ 1787.899600] br0: port 1(dummy0) entered blocking state
[ 1787.899643] br0: port 1(dummy0) entered disabled state
[ 1787.899678] dummy0: entered allmulticast mode
[ 1787.899727] dummy0: entered promiscuous mode
[ 1787.902520] br0: port 1(dummy0) entered blocking state
[ 1787.902581] br0: port 1(dummy0) entered forwarding state
[ 1788.083998] dummy0: left allmulticast mode
[ 1788.084032] dummy0: left promiscuous mode
[ 1788.084071] br0: port 1(dummy0) entered disabled state