[   17.106155] br0: port 1(dummy0) entered blocking state
[   17.106193] br0: port 1(dummy0) entered disabled state
[   17.106214] dummy0: entered allmulticast mode
[   17.106254] dummy0: entered promiscuous mode
[   17.109512] br0: port 1(dummy0) entered blocking state
[   17.109561] br0: port 1(dummy0) entered forwarding state
[   17.332280] dummy0: left allmulticast mode
[   17.332306] dummy0: left promiscuous mode
[   17.332324] br0: port 1(dummy0) entered disabled state