[ 1729.996033] br0: port 1(dummy0) entered blocking state
[ 1729.996102] br0: port 1(dummy0) entered disabled state
[ 1729.996171] dummy0: entered allmulticast mode
[ 1729.996257] dummy0: entered promiscuous mode
[ 1729.999072] br0: port 1(dummy0) entered blocking state
[ 1729.999101] br0: port 1(dummy0) entered forwarding state
[ 1730.182867] dummy0: left allmulticast mode
[ 1730.182895] dummy0: left promiscuous mode
[ 1730.182926] br0: port 1(dummy0) entered disabled state