[ 2148.427901][ T8895] br0: port 1(dummy0) entered blocking state
[ 2148.428269][ T8895] br0: port 1(dummy0) entered disabled state
[ 2148.428593][ T8895] dummy0: entered allmulticast mode
[ 2148.429632][ T8895] dummy0: entered promiscuous mode
[ 2148.462105][ T8896] br0: port 1(dummy0) entered blocking state
[ 2148.462408][ T8896] br0: port 1(dummy0) entered forwarding state
[ 2150.897659][   T68] dummy0: left allmulticast mode
[ 2150.898052][   T68] dummy0: left promiscuous mode
[ 2150.898372][   T68] br0: port 1(dummy0) entered disabled state