[ 1843.475625] br0: port 1(dummy0) entered blocking state
[ 1843.475677] br0: port 1(dummy0) entered disabled state
[ 1843.475715] dummy0: entered allmulticast mode
[ 1843.475767] dummy0: entered promiscuous mode
[ 1843.479261] br0: port 1(dummy0) entered blocking state
[ 1843.479324] br0: port 1(dummy0) entered forwarding state
[ 1843.726189] dummy0: left allmulticast mode
[ 1843.726230] dummy0: left promiscuous mode
[ 1843.726260] br0: port 1(dummy0) entered disabled state