[ 1691.867349] br0: port 1(dummy0) entered blocking state
[ 1691.867388] br0: port 1(dummy0) entered disabled state
[ 1691.867484] dummy0: entered allmulticast mode
[ 1691.867571] dummy0: entered promiscuous mode
[ 1691.869972] br0: port 1(dummy0) entered blocking state
[ 1691.870030] br0: port 1(dummy0) entered forwarding state
[ 1692.045642] dummy0: left allmulticast mode
[ 1692.045675] dummy0: left promiscuous mode
[ 1692.045704] br0: port 1(dummy0) entered disabled state