[ 1963.765946][ T2793] br0: port 1(dummy0) entered blocking state
[ 1963.766147][ T2793] br0: port 1(dummy0) entered disabled state
[ 1963.766316][ T2793] dummy0: entered allmulticast mode
[ 1963.767532][ T2793] dummy0: entered promiscuous mode
[ 1963.795936][ T2794] br0: port 1(dummy0) entered blocking state
[ 1963.796607][ T2794] br0: port 1(dummy0) entered forwarding state
[ 1965.801684][   T12] dummy0: left allmulticast mode
[ 1965.801887][   T12] dummy0: left promiscuous mode
[ 1965.802122][   T12] br0: port 1(dummy0) entered disabled state