[ 1857.019704] br0: port 1(dummy0) entered blocking state
[ 1857.019755] br0: port 1(dummy0) entered disabled state
[ 1857.019792] dummy0: entered allmulticast mode
[ 1857.019848] dummy0: entered promiscuous mode
[ 1857.023435] br0: port 1(dummy0) entered blocking state
[ 1857.023499] br0: port 1(dummy0) entered forwarding state
[ 1857.278037] dummy0: left allmulticast mode
[ 1857.278075] dummy0: left promiscuous mode
[ 1857.278111] br0: port 1(dummy0) entered disabled state