[ 1773.627618] br0: port 1(dummy0) entered blocking state
[ 1773.627671] br0: port 1(dummy0) entered disabled state
[ 1773.627723] dummy0: entered allmulticast mode
[ 1773.627792] dummy0: entered promiscuous mode
[ 1773.630362] br0: port 1(dummy0) entered blocking state
[ 1773.630408] br0: port 1(dummy0) entered forwarding state
[ 1773.800679] dummy0: left allmulticast mode
[ 1773.800700] dummy0: left promiscuous mode
[ 1773.800718] br0: port 1(dummy0) entered disabled state