[ 1660.962209] br0: port 1(dummy0) entered blocking state
[ 1660.962244] br0: port 1(dummy0) entered disabled state
[ 1660.962281] dummy0: entered allmulticast mode
[ 1660.962342] dummy0: entered promiscuous mode
[ 1660.965685] br0: port 1(dummy0) entered blocking state
[ 1660.965749] br0: port 1(dummy0) entered forwarding state
[ 1661.175042] dummy0: left allmulticast mode
[ 1661.175075] dummy0: left promiscuous mode
[ 1661.175145] br0: port 1(dummy0) entered disabled state