[ 1787.447327] br0: port 1(dummy0) entered blocking state
[ 1787.447372] br0: port 1(dummy0) entered disabled state
[ 1787.447416] dummy0: entered allmulticast mode
[ 1787.447473] dummy0: entered promiscuous mode
[ 1787.450886] br0: port 1(dummy0) entered blocking state
[ 1787.450918] br0: port 1(dummy0) entered forwarding state
[ 1787.663309] dummy0: left allmulticast mode
[ 1787.663344] dummy0: left promiscuous mode
[ 1787.663374] br0: port 1(dummy0) entered disabled state