[ 1658.969467] br0: port 1(dummy0) entered blocking state
[ 1658.969503] br0: port 1(dummy0) entered disabled state
[ 1658.969536] dummy0: entered allmulticast mode
[ 1658.969589] dummy0: entered promiscuous mode
[ 1658.972478] br0: port 1(dummy0) entered blocking state
[ 1658.972542] br0: port 1(dummy0) entered forwarding state
[ 1659.165831] dummy0: left allmulticast mode
[ 1659.165898] dummy0: left promiscuous mode
[ 1659.165969] br0: port 1(dummy0) entered disabled state