[ 1565.914578] br0: port 1(dummy0) entered blocking state
[ 1565.914653] br0: port 1(dummy0) entered disabled state
[ 1565.914717] dummy0: entered allmulticast mode
[ 1565.914804] dummy0: entered promiscuous mode
[ 1565.917302] br0: port 1(dummy0) entered blocking state
[ 1565.917362] br0: port 1(dummy0) entered forwarding state
[ 1566.082564] dummy0: left allmulticast mode
[ 1566.082601] dummy0: left promiscuous mode
[ 1566.082628] br0: port 1(dummy0) entered disabled state