[ 1894.362664] br0: port 1(dummy0) entered blocking state
[ 1894.362741] br0: port 1(dummy0) entered disabled state
[ 1894.362809] dummy0: entered allmulticast mode
[ 1894.362892] dummy0: entered promiscuous mode
[ 1894.366352] br0: port 1(dummy0) entered blocking state
[ 1894.366384] br0: port 1(dummy0) entered forwarding state
[ 1894.606948] dummy0: left allmulticast mode
[ 1894.606980] dummy0: left promiscuous mode
[ 1894.607011] br0: port 1(dummy0) entered disabled state