[ 1862.571670] br0: port 1(dummy0) entered blocking state
[ 1862.571722] br0: port 1(dummy0) entered disabled state
[ 1862.571755] dummy0: entered allmulticast mode
[ 1862.571805] dummy0: entered promiscuous mode
[ 1862.575281] br0: port 1(dummy0) entered blocking state
[ 1862.575313] br0: port 1(dummy0) entered forwarding state
[ 1862.839949] dummy0: left allmulticast mode
[ 1862.839987] dummy0: left promiscuous mode
[ 1862.840020] br0: port 1(dummy0) entered disabled state