[ 1674.786184] br0: port 1(dummy0) entered blocking state
[ 1674.786213] br0: port 1(dummy0) entered disabled state
[ 1674.786236] dummy0: entered allmulticast mode
[ 1674.786278] dummy0: entered promiscuous mode
[ 1674.789485] br0: port 1(dummy0) entered blocking state
[ 1674.789535] br0: port 1(dummy0) entered forwarding state
[ 1674.994061] dummy0: left allmulticast mode
[ 1674.994093] dummy0: left promiscuous mode
[ 1674.994116] br0: port 1(dummy0) entered disabled state