[ 1674.866807] br0: port 1(dummy0) entered blocking state
[ 1674.866888] br0: port 1(dummy0) entered disabled state
[ 1674.866955] dummy0: entered allmulticast mode
[ 1674.867045] dummy0: entered promiscuous mode
[ 1674.869826] br0: port 1(dummy0) entered blocking state
[ 1674.869858] br0: port 1(dummy0) entered forwarding state
[ 1675.057383] dummy0: left allmulticast mode
[ 1675.057423] dummy0: left promiscuous mode
[ 1675.057454] br0: port 1(dummy0) entered disabled state