[  231.997911][ T1676] br0: port 1(dummy0) entered blocking state
[  231.998331][ T1676] br0: port 1(dummy0) entered disabled state
[  231.998551][ T1676] dummy0: entered allmulticast mode
[  232.000268][ T1676] dummy0: entered promiscuous mode
[  232.026542][ T1677] br0: port 1(dummy0) entered blocking state
[  232.026783][ T1677] br0: port 1(dummy0) entered forwarding state
[  233.887267][   T67] dummy0: left allmulticast mode
[  233.887663][   T67] dummy0: left promiscuous mode
[  233.887985][   T67] br0: port 1(dummy0) entered disabled state