[ 1589.492488] br0: port 1(dummy0) entered blocking state
[ 1589.492556] br0: port 1(dummy0) entered disabled state
[ 1589.492611] dummy0: entered allmulticast mode
[ 1589.492700] dummy0: entered promiscuous mode
[ 1589.495407] br0: port 1(dummy0) entered blocking state
[ 1589.495456] br0: port 1(dummy0) entered forwarding state
[ 1589.676719] dummy0: left allmulticast mode
[ 1589.676743] dummy0: left promiscuous mode
[ 1589.676764] br0: port 1(dummy0) entered disabled state