[ 1660.001764] br0: port 1(dummy0) entered blocking state
[ 1660.001807] br0: port 1(dummy0) entered disabled state
[ 1660.001840] dummy0: entered allmulticast mode
[ 1660.001909] dummy0: entered promiscuous mode
[ 1660.004820] br0: port 1(dummy0) entered blocking state
[ 1660.004895] br0: port 1(dummy0) entered forwarding state
[ 1660.203921] dummy0: left allmulticast mode
[ 1660.203959] dummy0: left promiscuous mode
[ 1660.203986] br0: port 1(dummy0) entered disabled state