[ 2562.614121] br0: port 1(dummy0) entered disabled state
[ 2562.725632] br0: port 1(dummy0) entered listening state
[ 2563.975801] br0: port 1(dummy0) entered learning state
[ 2564.094417] br0: port 1(dummy0) entered forwarding state
[ 2564.206434] br0: port 1(dummy0) entered forwarding state
[ 2579.526976] br0: port 1(dummy0) entered disabled state
[ 2579.609464] br0: port 1(dummy0) entered blocking state
[ 2579.610250] br0: port 1(dummy0) entered listening state
[ 2599.610592] br0: port 1(dummy0) entered learning state
[ 2620.090294] br0: port 1(dummy0) entered forwarding state
[ 2620.091448] br0: topology change detected, propagating
[ 2640.143687] br0: port 1(dummy0) entered disabled state
[ 2640.225584] device dummy0 left promiscuous mode
[ 2640.226195] br0: port 1(dummy0) entered disabled state