[ 1685.671761] br0: port 1(dummy0) entered blocking state
[ 1685.671808] br0: port 1(dummy0) entered disabled state
[ 1685.671839] dummy0: entered allmulticast mode
[ 1685.671887] dummy0: entered promiscuous mode
[ 1685.674376] br0: port 1(dummy0) entered blocking state
[ 1685.674435] br0: port 1(dummy0) entered forwarding state
[ 1685.854657] dummy0: left allmulticast mode
[ 1685.854691] dummy0: left promiscuous mode
[ 1685.854754] br0: port 1(dummy0) entered disabled state