[   18.273928] br0: port 1(dummy0) entered blocking state
[   18.273982] br0: port 1(dummy0) entered disabled state
[   18.274005] dummy0: entered allmulticast mode
[   18.274077] dummy0: entered promiscuous mode
[   18.277686] br0: port 1(dummy0) entered blocking state
[   18.277723] br0: port 1(dummy0) entered forwarding state
[   18.536334] dummy0: left allmulticast mode
[   18.536372] dummy0: left promiscuous mode
[   18.536408] br0: port 1(dummy0) entered disabled state