[ 1995.786959][ T3574] br0: port 1(dummy0) entered blocking state
[ 1995.787164][ T3574] br0: port 1(dummy0) entered disabled state
[ 1995.787357][ T3574] dummy0: entered allmulticast mode
[ 1995.788348][ T3574] dummy0: entered promiscuous mode
[ 1995.808787][ T3575] br0: port 1(dummy0) entered blocking state
[ 1995.809128][ T3575] br0: port 1(dummy0) entered forwarding state
[ 1997.763942][   T72] dummy0: left allmulticast mode
[ 1997.764242][   T72] dummy0: left promiscuous mode
[ 1997.764459][   T72] br0: port 1(dummy0) entered disabled state