[ 1660.856788] br0: port 1(dummy0) entered blocking state
[ 1660.856864] br0: port 1(dummy0) entered disabled state
[ 1660.856941] dummy0: entered allmulticast mode
[ 1660.857013] dummy0: entered promiscuous mode
[ 1660.859751] br0: port 1(dummy0) entered blocking state
[ 1660.859778] br0: port 1(dummy0) entered forwarding state
[ 1661.046745] dummy0: left allmulticast mode
[ 1661.046782] dummy0: left promiscuous mode
[ 1661.046805] br0: port 1(dummy0) entered disabled state