[   50.015427][ T1426] br0: port 1(dummy0) entered blocking state
[   50.015810][ T1426] br0: port 1(dummy0) entered disabled state
[   50.016184][ T1426] dummy0: entered allmulticast mode
[   50.017227][ T1426] dummy0: entered promiscuous mode
[   50.050655][ T1427] br0: port 1(dummy0) entered blocking state
[   50.051114][ T1427] br0: port 1(dummy0) entered forwarding state
[   52.949107][   T12] dummy0: left allmulticast mode
[   52.949849][   T12] dummy0: left promiscuous mode
[   52.950516][   T12] br0: port 1(dummy0) entered disabled state