[  334.529099] br0: port 1(dummy0) entered blocking state
[  334.529857] br0: port 1(dummy0) entered disabled state
[  334.530789] device dummy0 entered promiscuous mode
[  334.596557] br0: port 1(dummy0) entered blocking state
[  334.597289] br0: port 1(dummy0) entered forwarding state
[  334.835259] br0: port 1(dummy0) entered disabled state
[  334.937153] device dummy0 left promiscuous mode
[  334.937868] br0: port 1(dummy0) entered disabled state