[  635.207542] br0: port 1(dummy0) entered blocking state
[  635.207586] br0: port 1(dummy0) entered disabled state
[  635.207625] dummy0: entered allmulticast mode
[  635.207679] dummy0: entered promiscuous mode
[  635.211164] br0: port 1(dummy0) entered blocking state
[  635.211229] br0: port 1(dummy0) entered forwarding state
[  635.463160] dummy0: left allmulticast mode
[  635.463202] dummy0: left promiscuous mode
[  635.463234] br0: port 1(dummy0) entered disabled state