[ 1545.890855] br0: port 1(dummy0) entered blocking state
[ 1545.890939] br0: port 1(dummy0) entered disabled state
[ 1545.891007] dummy0: entered allmulticast mode
[ 1545.891111] dummy0: entered promiscuous mode
[ 1545.894443] br0: port 1(dummy0) entered blocking state
[ 1545.894482] br0: port 1(dummy0) entered forwarding state
[ 1546.105429] dummy0: left allmulticast mode
[ 1546.105474] dummy0: left promiscuous mode
[ 1546.105564] br0: port 1(dummy0) entered disabled state