[ 1735.975982] br0: port 1(dummy0) entered blocking state
[ 1735.976061] br0: port 1(dummy0) entered disabled state
[ 1735.976129] dummy0: entered allmulticast mode
[ 1735.976220] dummy0: entered promiscuous mode
[ 1735.980222] br0: port 1(dummy0) entered blocking state
[ 1735.980267] br0: port 1(dummy0) entered forwarding state
[ 1736.269946] dummy0: left allmulticast mode
[ 1736.269981] dummy0: left promiscuous mode
[ 1736.270013] br0: port 1(dummy0) entered disabled state