[ 1830.316753] br0: port 1(dummy0) entered blocking state
[ 1830.316793] br0: port 1(dummy0) entered disabled state
[ 1830.316827] dummy0: entered allmulticast mode
[ 1830.316883] dummy0: entered promiscuous mode
[ 1830.320290] br0: port 1(dummy0) entered blocking state
[ 1830.320354] br0: port 1(dummy0) entered forwarding state
[ 1830.551633] dummy0: left allmulticast mode
[ 1830.551668] dummy0: left promiscuous mode
[ 1830.551704] br0: port 1(dummy0) entered disabled state