[ 1729.360424] br0: port 1(dummy0) entered blocking state
[ 1729.360498] br0: port 1(dummy0) entered disabled state
[ 1729.360565] dummy0: entered allmulticast mode
[ 1729.360658] dummy0: entered promiscuous mode
[ 1729.363589] br0: port 1(dummy0) entered blocking state
[ 1729.363622] br0: port 1(dummy0) entered forwarding state
[ 1729.563201] dummy0: left allmulticast mode
[ 1729.563241] dummy0: left promiscuous mode
[ 1729.563270] br0: port 1(dummy0) entered disabled state