[ 3722.153312] br0: port 1(dummy0) entered disabled state [ 3722.319992] br0: port 1(dummy0) entered listening state [ 3723.671265] br0: port 1(dummy0) entered learning state [ 3723.833088] br0: port 1(dummy0) entered forwarding state [ 3724.000953] br0: port 1(dummy0) entered forwarding state [ 3739.431037] br0: port 1(dummy0) entered disabled state [ 3739.491480] br0: port 1(dummy0) entered blocking state [ 3739.491505] br0: port 1(dummy0) entered listening state [ 3760.047813] br0: port 1(dummy0) entered learning state [ 3780.528976] br0: port 1(dummy0) entered forwarding state [ 3780.528993] br0: topology change detected, propagating [ 3800.249896] br0: port 1(dummy0) entered disabled state [ 3800.304702] device dummy0 left promiscuous mode [ 3800.309772] br0: port 1(dummy0) entered disabled state