[ 2131.216804][ T5950] br0: port 1(dummy0) entered blocking state
[ 2131.217124][ T5950] br0: port 1(dummy0) entered disabled state
[ 2131.217398][ T5950] dummy0: entered allmulticast mode
[ 2131.218514][ T5950] dummy0: entered promiscuous mode
[ 2131.253011][ T5951] br0: port 1(dummy0) entered blocking state
[ 2131.253604][ T5951] br0: port 1(dummy0) entered forwarding state
[ 2133.758979][   T12] dummy0: left allmulticast mode
[ 2133.759556][   T12] dummy0: left promiscuous mode
[ 2133.760212][   T12] br0: port 1(dummy0) entered disabled state