[ 2582.124447] br0: port 1(dummy0) entered disabled state
[ 2582.175195] br0: port 1(dummy0) entered listening state
[ 2583.312349] br0: port 1(dummy0) entered learning state
[ 2583.364739] br0: port 1(dummy0) entered forwarding state
[ 2583.420222] br0: port 1(dummy0) entered forwarding state
[ 2598.565555] br0: port 1(dummy0) entered disabled state
[ 2598.585285] br0: port 1(dummy0) entered blocking state
[ 2598.585289] br0: port 1(dummy0) entered listening state
[ 2619.072792] br0: port 1(dummy0) entered learning state
[ 2639.552910] br0: port 1(dummy0) entered forwarding state
[ 2639.552935] br0: topology change detected, propagating
[ 2658.843006] br0: port 1(dummy0) entered disabled state
[ 2658.860973] device dummy0 left promiscuous mode
[ 2658.860996] br0: port 1(dummy0) entered disabled state