[ 1843.867345] br0: port 1(dummy0) entered blocking state
[ 1843.867386] br0: port 1(dummy0) entered disabled state
[ 1843.867427] dummy0: entered allmulticast mode
[ 1843.867481] dummy0: entered promiscuous mode
[ 1843.870738] br0: port 1(dummy0) entered blocking state
[ 1843.870802] br0: port 1(dummy0) entered forwarding state
[ 1844.116242] dummy0: left allmulticast mode
[ 1844.116285] dummy0: left promiscuous mode
[ 1844.116351] br0: port 1(dummy0) entered disabled state