[ 1894.417947] br0: port 1(dummy0) entered blocking state
[ 1894.417986] br0: port 1(dummy0) entered disabled state
[ 1894.418024] dummy0: entered allmulticast mode
[ 1894.418073] dummy0: entered promiscuous mode
[ 1894.421580] br0: port 1(dummy0) entered blocking state
[ 1894.421643] br0: port 1(dummy0) entered forwarding state
[ 1894.674618] dummy0: left allmulticast mode
[ 1894.674688] dummy0: left promiscuous mode
[ 1894.674752] br0: port 1(dummy0) entered disabled state