[ 2010.162997] br0: port 1(dummy0) entered blocking state
[ 2010.163048] br0: port 1(dummy0) entered disabled state
[ 2010.163087] dummy0: entered allmulticast mode
[ 2010.163157] dummy0: entered promiscuous mode
[ 2010.166967] br0: port 1(dummy0) entered blocking state
[ 2010.167046] br0: port 1(dummy0) entered forwarding state
[ 2010.470806] dummy0: left allmulticast mode
[ 2010.470849] dummy0: left promiscuous mode
[ 2010.470884] br0: port 1(dummy0) entered disabled state