[ 2234.055731][ T5929] br0: port 1(dummy0) entered blocking state
[ 2234.055910][ T5929] br0: port 1(dummy0) entered disabled state
[ 2234.056069][ T5929] dummy0: entered allmulticast mode
[ 2234.056924][ T5929] dummy0: entered promiscuous mode
[ 2234.093154][ T5930] br0: port 1(dummy0) entered blocking state
[ 2234.093548][ T5930] br0: port 1(dummy0) entered forwarding state
[ 2236.456647][   T67] dummy0: left allmulticast mode
[ 2236.458533][   T67] dummy0: left promiscuous mode
[ 2236.458820][   T67] br0: port 1(dummy0) entered disabled state