[ 2347.638443][ T3108] br0: port 1(dummy0) entered blocking state
[ 2347.639116][ T3108] br0: port 1(dummy0) entered disabled state
[ 2347.639281][ T3108] dummy0: entered allmulticast mode
[ 2347.640858][ T3108] dummy0: entered promiscuous mode
[ 2347.665075][ T3109] br0: port 1(dummy0) entered blocking state
[ 2347.665331][ T3109] br0: port 1(dummy0) entered forwarding state
[ 2350.027071][   T67] dummy0: left allmulticast mode
[ 2350.028157][   T67] dummy0: left promiscuous mode
[ 2350.028538][   T67] br0: port 1(dummy0) entered disabled state