[ 2056.638110][ T5892] br0: port 1(dummy0) entered blocking state
[ 2056.638299][ T5892] br0: port 1(dummy0) entered disabled state
[ 2056.638464][ T5892] dummy0: entered allmulticast mode
[ 2056.639612][ T5892] dummy0: entered promiscuous mode
[ 2056.661222][ T5893] br0: port 1(dummy0) entered blocking state
[ 2056.661504][ T5893] br0: port 1(dummy0) entered forwarding state
[ 2058.663474][   T12] dummy0: left allmulticast mode
[ 2058.666159][   T12] dummy0: left promiscuous mode
[ 2058.666410][   T12] br0: port 1(dummy0) entered disabled state