[ 1772.356028] br0: port 1(dummy0) entered blocking state
[ 1772.356056] br0: port 1(dummy0) entered disabled state
[ 1772.356081] dummy0: entered allmulticast mode
[ 1772.356119] dummy0: entered promiscuous mode
[ 1772.358768] br0: port 1(dummy0) entered blocking state
[ 1772.358789] br0: port 1(dummy0) entered forwarding state
[ 1772.532886] dummy0: left allmulticast mode
[ 1772.532913] dummy0: left promiscuous mode
[ 1772.532935] br0: port 1(dummy0) entered disabled state