[ 1713.709071] br0: port 1(dummy0) entered blocking state
[ 1713.709150] br0: port 1(dummy0) entered disabled state
[ 1713.709218] dummy0: entered allmulticast mode
[ 1713.709316] dummy0: entered promiscuous mode
[ 1713.712113] br0: port 1(dummy0) entered blocking state
[ 1713.712148] br0: port 1(dummy0) entered forwarding state
[ 1713.893611] dummy0: left allmulticast mode
[ 1713.893644] dummy0: left promiscuous mode
[ 1713.893674] br0: port 1(dummy0) entered disabled state