[ 1798.773685] br0: port 1(dummy0) entered blocking state
[ 1798.773756] br0: port 1(dummy0) entered disabled state
[ 1798.773824] dummy0: entered allmulticast mode
[ 1798.773908] dummy0: entered promiscuous mode
[ 1798.777523] br0: port 1(dummy0) entered blocking state
[ 1798.777557] br0: port 1(dummy0) entered forwarding state
[ 1799.052465] dummy0: left allmulticast mode
[ 1799.052501] dummy0: left promiscuous mode
[ 1799.052585] br0: port 1(dummy0) entered disabled state