[ 1736.994881] br0: port 1(dummy0) entered blocking state
[ 1736.994922] br0: port 1(dummy0) entered disabled state
[ 1736.994956] dummy0: entered allmulticast mode
[ 1736.995005] dummy0: entered promiscuous mode
[ 1736.998458] br0: port 1(dummy0) entered blocking state
[ 1736.998489] br0: port 1(dummy0) entered forwarding state
[ 1737.260019] dummy0: left allmulticast mode
[ 1737.260056] dummy0: left promiscuous mode
[ 1737.260082] br0: port 1(dummy0) entered disabled state