[ 1828.741364] br0: port 1(dummy0) entered blocking state
[ 1828.741403] br0: port 1(dummy0) entered disabled state
[ 1828.741436] dummy0: entered allmulticast mode
[ 1828.741501] dummy0: entered promiscuous mode
[ 1828.744736] br0: port 1(dummy0) entered blocking state
[ 1828.744768] br0: port 1(dummy0) entered forwarding state
[ 1828.959040] dummy0: left allmulticast mode
[ 1828.959074] dummy0: left promiscuous mode
[ 1828.959107] br0: port 1(dummy0) entered disabled state