[ 1933.932309][ T3327] br0: port 1(dummy0) entered blocking state
[ 1933.932508][ T3327] br0: port 1(dummy0) entered disabled state
[ 1933.932675][ T3327] dummy0: entered allmulticast mode
[ 1933.933657][ T3327] dummy0: entered promiscuous mode
[ 1933.957218][ T3328] br0: port 1(dummy0) entered blocking state
[ 1933.957742][ T3328] br0: port 1(dummy0) entered forwarding state
[ 1935.942628][   T12] dummy0: left allmulticast mode
[ 1935.943215][   T12] dummy0: left promiscuous mode
[ 1935.943537][   T12] br0: port 1(dummy0) entered disabled state