[ 1863.845174] br0: port 1(dummy0) entered blocking state
[ 1863.845221] br0: port 1(dummy0) entered disabled state
[ 1863.845257] dummy0: entered allmulticast mode
[ 1863.845307] dummy0: entered promiscuous mode
[ 1863.848712] br0: port 1(dummy0) entered blocking state
[ 1863.848776] br0: port 1(dummy0) entered forwarding state
[ 1864.105109] dummy0: left allmulticast mode
[ 1864.105145] dummy0: left promiscuous mode
[ 1864.105176] br0: port 1(dummy0) entered disabled state