[ 1725.739694] br0: port 1(dummy0) entered blocking state
[ 1725.739742] br0: port 1(dummy0) entered disabled state
[ 1725.739780] dummy0: entered allmulticast mode
[ 1725.739827] dummy0: entered promiscuous mode
[ 1725.742685] br0: port 1(dummy0) entered blocking state
[ 1725.742749] br0: port 1(dummy0) entered forwarding state
[ 1725.932955] dummy0: left allmulticast mode
[ 1725.932997] dummy0: left promiscuous mode
[ 1725.933025] br0: port 1(dummy0) entered disabled state