[ 2223.642059][ T3595] br0: port 1(dummy0) entered blocking state
[ 2223.642250][ T3595] br0: port 1(dummy0) entered disabled state
[ 2223.642416][ T3595] dummy0: entered allmulticast mode
[ 2223.643386][ T3595] dummy0: entered promiscuous mode
[ 2223.672866][ T3596] br0: port 1(dummy0) entered blocking state
[ 2223.673162][ T3596] br0: port 1(dummy0) entered forwarding state
[ 2225.713146][   T67] dummy0: left allmulticast mode
[ 2225.713782][   T67] dummy0: left promiscuous mode
[ 2225.714013][   T67] br0: port 1(dummy0) entered disabled state