[ 1610.790947] br0: port 1(dummy0) entered blocking state
[ 1610.791005] br0: port 1(dummy0) entered disabled state
[ 1610.791059] dummy0: entered allmulticast mode
[ 1610.791138] dummy0: entered promiscuous mode
[ 1610.793791] br0: port 1(dummy0) entered blocking state
[ 1610.793811] br0: port 1(dummy0) entered forwarding state
[ 1610.983590] dummy0: left allmulticast mode
[ 1610.983612] dummy0: left promiscuous mode
[ 1610.983630] br0: port 1(dummy0) entered disabled state