[   54.151803] br0: port 1(dummy0) entered blocking state
[   54.151874] br0: port 1(dummy0) entered disabled state
[   54.151943] dummy0: entered allmulticast mode
[   54.152030] dummy0: entered promiscuous mode
[   54.154870] br0: port 1(dummy0) entered blocking state
[   54.154902] br0: port 1(dummy0) entered forwarding state
[   54.339902] dummy0: left allmulticast mode
[   54.339939] dummy0: left promiscuous mode
[   54.339968] br0: port 1(dummy0) entered disabled state