[   17.029103] br0: port 1(dummy0) entered blocking state
[   17.029181] br0: port 1(dummy0) entered disabled state
[   17.029246] dummy0: entered allmulticast mode
[   17.029330] dummy0: entered promiscuous mode
[   17.032826] br0: port 1(dummy0) entered blocking state
[   17.032857] br0: port 1(dummy0) entered forwarding state
[   17.295053] dummy0: left allmulticast mode
[   17.295114] dummy0: left promiscuous mode
[   17.295175] br0: port 1(dummy0) entered disabled state