[   18.176862] br0: port 1(dummy0) entered blocking state
[   18.176920] br0: port 1(dummy0) entered disabled state
[   18.176963] dummy0: entered allmulticast mode
[   18.177018] dummy0: entered promiscuous mode
[   18.180202] br0: port 1(dummy0) entered blocking state
[   18.180273] br0: port 1(dummy0) entered forwarding state
[   18.389441] dummy0: left allmulticast mode
[   18.389492] dummy0: left promiscuous mode
[   18.389525] br0: port 1(dummy0) entered disabled state