[  305.235818] br0: port 1(dummy0) entered disabled state
[  305.309598] br0: port 1(dummy0) entered listening state
[  306.433008] br0: port 1(dummy0) entered learning state
[  306.507819] br0: port 1(dummy0) entered forwarding state
[  306.582802] br0: port 1(dummy0) entered forwarding state
[  321.786279] br0: port 1(dummy0) entered disabled state
[  321.814992] br0: port 1(dummy0) entered blocking state
[  321.814999] br0: port 1(dummy0) entered listening state
[  341.840305] br0: port 1(dummy0) entered learning state
[  362.320353] br0: port 1(dummy0) entered forwarding state
[  362.320367] br0: topology change detected, propagating
[  382.198523] br0: port 1(dummy0) entered disabled state
[  382.232608] device dummy0 left promiscuous mode
[  382.232649] br0: port 1(dummy0) entered disabled state