[ 1759.476771] br0: port 1(dummy0) entered blocking state
[ 1759.476808] br0: port 1(dummy0) entered disabled state
[ 1759.476840] dummy0: entered allmulticast mode
[ 1759.476896] dummy0: entered promiscuous mode
[ 1759.479662] br0: port 1(dummy0) entered blocking state
[ 1759.479728] br0: port 1(dummy0) entered forwarding state
[ 1759.673748] dummy0: left allmulticast mode
[ 1759.673782] dummy0: left promiscuous mode
[ 1759.673812] br0: port 1(dummy0) entered disabled state