[ 2181.004928] br0: port 1(dummy0) entered blocking state
[ 2181.004970] br0: port 1(dummy0) entered disabled state
[ 2181.005005] dummy0: entered allmulticast mode
[ 2181.005059] dummy0: entered promiscuous mode
[ 2181.007859] br0: port 1(dummy0) entered blocking state
[ 2181.007890] br0: port 1(dummy0) entered forwarding state
[ 2181.203413] dummy0: left allmulticast mode
[ 2181.203441] dummy0: left promiscuous mode
[ 2181.203480] br0: port 1(dummy0) entered disabled state