[ 2040.103211][T20735] br0: port 1(dummy0) entered blocking state
[ 2040.103405][T20735] br0: port 1(dummy0) entered disabled state
[ 2040.103564][T20735] dummy0: entered allmulticast mode
[ 2040.104434][T20735] dummy0: entered promiscuous mode
[ 2040.127730][T20736] br0: port 1(dummy0) entered blocking state
[ 2040.127935][T20736] br0: port 1(dummy0) entered forwarding state
[ 2042.163023][   T70] dummy0: left allmulticast mode
[ 2042.164134][   T70] dummy0: left promiscuous mode
[ 2042.164428][   T70] br0: port 1(dummy0) entered disabled state