[  664.879707] br0: port 1(dummy0) entered blocking state
[  664.879742] br0: port 1(dummy0) entered disabled state
[  664.879766] dummy0: entered allmulticast mode
[  664.879806] dummy0: entered promiscuous mode
[  664.883554] br0: port 1(dummy0) entered blocking state
[  664.883602] br0: port 1(dummy0) entered forwarding state
[  665.173708] dummy0: left allmulticast mode
[  665.173737] dummy0: left promiscuous mode
[  665.173760] br0: port 1(dummy0) entered disabled state