[ 1563.437449] br0: port 1(dummy0) entered blocking state
[ 1563.437499] br0: port 1(dummy0) entered disabled state
[ 1563.437531] dummy0: entered allmulticast mode
[ 1563.437590] dummy0: entered promiscuous mode
[ 1563.440142] br0: port 1(dummy0) entered blocking state
[ 1563.440183] br0: port 1(dummy0) entered forwarding state
[ 1563.611919] dummy0: left allmulticast mode
[ 1563.611959] dummy0: left promiscuous mode
[ 1563.612060] br0: port 1(dummy0) entered disabled state