[  110.531961] br0: port 1(dummy0) entered blocking state
[  110.532035] br0: port 1(dummy0) entered disabled state
[  110.532103] dummy0: entered allmulticast mode
[  110.532191] dummy0: entered promiscuous mode
[  110.534970] br0: port 1(dummy0) entered blocking state
[  110.535003] br0: port 1(dummy0) entered forwarding state
[  110.717286] dummy0: left allmulticast mode
[  110.717319] dummy0: left promiscuous mode
[  110.717355] br0: port 1(dummy0) entered disabled state