[ 1895.542882] br0: port 1(dummy0) entered blocking state
[ 1895.542930] br0: port 1(dummy0) entered disabled state
[ 1895.542967] dummy0: entered allmulticast mode
[ 1895.543024] dummy0: entered promiscuous mode
[ 1895.546601] br0: port 1(dummy0) entered blocking state
[ 1895.546633] br0: port 1(dummy0) entered forwarding state
[ 1895.818911] dummy0: left allmulticast mode
[ 1895.818949] dummy0: left promiscuous mode
[ 1895.818981] br0: port 1(dummy0) entered disabled state