[ 1594.317608] br0: port 1(dummy0) entered blocking state
[ 1594.317655] br0: port 1(dummy0) entered disabled state
[ 1594.317691] dummy0: entered allmulticast mode
[ 1594.317744] dummy0: entered promiscuous mode
[ 1594.320605] br0: port 1(dummy0) entered blocking state
[ 1594.320639] br0: port 1(dummy0) entered forwarding state
[ 1594.510322] dummy0: left allmulticast mode
[ 1594.510354] dummy0: left promiscuous mode
[ 1594.510383] br0: port 1(dummy0) entered disabled state