[ 1660.649661] br0: port 1(dummy0) entered blocking state
[ 1660.649711] br0: port 1(dummy0) entered disabled state
[ 1660.649748] dummy0: entered allmulticast mode
[ 1660.649803] dummy0: entered promiscuous mode
[ 1660.652226] br0: port 1(dummy0) entered blocking state
[ 1660.652288] br0: port 1(dummy0) entered forwarding state
[ 1660.825617] dummy0: left allmulticast mode
[ 1660.825688] dummy0: left promiscuous mode
[ 1660.825751] br0: port 1(dummy0) entered disabled state