[  103.975081] br0: port 1(dummy0) entered blocking state
[  103.975170] br0: port 1(dummy0) entered disabled state
[  103.975247] dummy0: entered allmulticast mode
[  103.975333] dummy0: entered promiscuous mode
[  103.978235] br0: port 1(dummy0) entered blocking state
[  103.978269] br0: port 1(dummy0) entered forwarding state
[  104.168634] dummy0: left allmulticast mode
[  104.168681] dummy0: left promiscuous mode
[  104.168719] br0: port 1(dummy0) entered disabled state