[ 1961.461496] br0: port 1(dummy0) entered blocking state
[ 1961.461571] br0: port 1(dummy0) entered disabled state
[ 1961.461638] dummy0: entered allmulticast mode
[ 1961.461723] dummy0: entered promiscuous mode
[ 1961.465212] br0: port 1(dummy0) entered blocking state
[ 1961.465244] br0: port 1(dummy0) entered forwarding state
[ 1961.725844] dummy0: left allmulticast mode
[ 1961.725878] dummy0: left promiscuous mode
[ 1961.725907] br0: port 1(dummy0) entered disabled state