[ 3651.609994] br0: port 1(dummy0) entered disabled state
[ 3652.010145] br0: port 1(dummy0) entered listening state
[ 3653.678363] br0: port 1(dummy0) entered learning state
[ 3654.012274] br0: port 1(dummy0) entered forwarding state
[ 3654.347343] br0: port 1(dummy0) entered forwarding state
[ 3670.280424] br0: port 1(dummy0) entered disabled state
[ 3670.401879] br0: port 1(dummy0) entered blocking state
[ 3670.403354] br0: port 1(dummy0) entered listening state
[ 3690.655896] br0: port 1(dummy0) entered learning state
[ 3711.135831] br0: port 1(dummy0) entered forwarding state
[ 3711.137630] br0: topology change detected, propagating
[ 3732.041500] br0: port 1(dummy0) entered disabled state
[ 3732.154025] device dummy0 left promiscuous mode
[ 3732.155235] br0: port 1(dummy0) entered disabled state