[  657.927221] br0: port 1(dummy0) entered blocking state
[  657.927267] br0: port 1(dummy0) entered disabled state
[  657.927306] dummy0: entered allmulticast mode
[  657.927352] dummy0: entered promiscuous mode
[  657.930819] br0: port 1(dummy0) entered blocking state
[  657.930858] br0: port 1(dummy0) entered forwarding state
[  658.179807] dummy0: left allmulticast mode
[  658.179841] dummy0: left promiscuous mode
[  658.179870] br0: port 1(dummy0) entered disabled state