[ 2187.541867][T24634] br0: port 1(dummy0) entered blocking state
[ 2187.542053][T24634] br0: port 1(dummy0) entered disabled state
[ 2187.542492][T24634] dummy0: entered allmulticast mode
[ 2187.543347][T24634] dummy0: entered promiscuous mode
[ 2187.572727][T24635] br0: port 1(dummy0) entered blocking state
[ 2187.573042][T24635] br0: port 1(dummy0) entered forwarding state
[ 2189.591042][   T12] dummy0: left allmulticast mode
[ 2189.592022][   T12] dummy0: left promiscuous mode
[ 2189.592264][   T12] br0: port 1(dummy0) entered disabled state