[ 1924.358154] br0: port 1(dummy0) entered blocking state
[ 1924.358198] br0: port 1(dummy0) entered disabled state
[ 1924.358230] dummy0: entered allmulticast mode
[ 1924.358286] dummy0: entered promiscuous mode
[ 1924.361879] br0: port 1(dummy0) entered blocking state
[ 1924.361942] br0: port 1(dummy0) entered forwarding state
[ 1924.619249] dummy0: left allmulticast mode
[ 1924.619279] dummy0: left promiscuous mode
[ 1924.619307] br0: port 1(dummy0) entered disabled state