[ 3641.231897] br0: port 1(dummy0) entered disabled state
[ 3641.388063] br0: port 1(dummy0) entered listening state
[ 3642.718283] br0: port 1(dummy0) entered learning state
[ 3642.870125] br0: port 1(dummy0) entered forwarding state
[ 3643.027444] br0: port 1(dummy0) entered forwarding state
[ 3658.437871] br0: port 1(dummy0) entered disabled state
[ 3658.490866] br0: port 1(dummy0) entered blocking state
[ 3658.490884] br0: port 1(dummy0) entered listening state
[ 3678.727322] br0: port 1(dummy0) entered learning state
[ 3699.208607] br0: port 1(dummy0) entered forwarding state
[ 3699.208621] br0: topology change detected, propagating
[ 3719.217385] br0: port 1(dummy0) entered disabled state
[ 3719.271575] device dummy0 left promiscuous mode
[ 3719.271623] br0: port 1(dummy0) entered disabled state