[ 2525.072583] br0: port 1(dummy0) entered disabled state
[ 2525.140526] br0: port 1(dummy0) entered listening state
[ 2526.294657] br0: port 1(dummy0) entered learning state
[ 2526.378850] br0: port 1(dummy0) entered forwarding state
[ 2526.453659] br0: port 1(dummy0) entered forwarding state
[ 2541.650907] br0: port 1(dummy0) entered disabled state
[ 2541.675578] br0: port 1(dummy0) entered blocking state
[ 2541.675587] br0: port 1(dummy0) entered listening state
[ 2562.191585] br0: port 1(dummy0) entered learning state
[ 2582.671503] br0: port 1(dummy0) entered forwarding state
[ 2582.671538] br0: topology change detected, propagating
[ 2601.996116] br0: port 1(dummy0) entered disabled state
[ 2602.019644] device dummy0 left promiscuous mode
[ 2602.019672] br0: port 1(dummy0) entered disabled state