[ 2002.708884] br0: port 1(dummy0) entered disabled state
[ 2002.753553] br0: port 1(dummy0) entered listening state
[ 2003.847000] br0: port 1(dummy0) entered learning state
[ 2003.891216] br0: port 1(dummy0) entered forwarding state
[ 2003.935772] br0: port 1(dummy0) entered forwarding state
[ 2019.056140] br0: port 1(dummy0) entered disabled state
[ 2019.106628] br0: port 1(dummy0) entered blocking state
[ 2019.106645] br0: port 1(dummy0) entered listening state
[ 2039.560452] br0: port 1(dummy0) entered learning state
[ 2060.040482] br0: port 1(dummy0) entered forwarding state
[ 2060.040497] br0: topology change detected, propagating
[ 2079.313516] br0: port 1(dummy0) entered disabled state
[ 2079.330013] device dummy0 left promiscuous mode
[ 2079.330054] br0: port 1(dummy0) entered disabled state