[ 2827.827006] br0: port 1(dummy0) entered disabled state
[ 2827.957030] br0: port 1(dummy0) entered listening state
[ 2829.182471] br0: port 1(dummy0) entered learning state
[ 2829.295958] br0: port 1(dummy0) entered forwarding state
[ 2829.407074] br0: port 1(dummy0) entered forwarding state
[ 2844.719316] br0: port 1(dummy0) entered disabled state
[ 2844.768200] br0: port 1(dummy0) entered blocking state
[ 2844.769651] br0: port 1(dummy0) entered listening state
[ 2865.028467] br0: port 1(dummy0) entered learning state
[ 2885.508828] br0: port 1(dummy0) entered forwarding state
[ 2885.510789] br0: topology change detected, propagating
[ 2905.340291] br0: port 1(dummy0) entered disabled state
[ 2905.393864] device dummy0 left promiscuous mode
[ 2905.396066] br0: port 1(dummy0) entered disabled state