[ 1924.858647][T10664] br0: port 1(dummy0) entered blocking state
[ 1924.858857][T10664] br0: port 1(dummy0) entered disabled state
[ 1924.859046][T10664] dummy0: entered allmulticast mode
[ 1924.860304][T10664] dummy0: entered promiscuous mode
[ 1924.884439][T10665] br0: port 1(dummy0) entered blocking state
[ 1924.884716][T10665] br0: port 1(dummy0) entered forwarding state
[ 1926.834428][   T12] dummy0: left allmulticast mode
[ 1926.835125][   T12] dummy0: left promiscuous mode
[ 1926.835406][   T12] br0: port 1(dummy0) entered disabled state