[ 1807.689529] br0: port 1(dummy0) entered blocking state
[ 1807.689602] br0: port 1(dummy0) entered disabled state
[ 1807.689668] dummy0: entered allmulticast mode
[ 1807.689749] dummy0: entered promiscuous mode
[ 1807.693044] br0: port 1(dummy0) entered blocking state
[ 1807.693074] br0: port 1(dummy0) entered forwarding state
[ 1807.915994] dummy0: left allmulticast mode
[ 1807.916026] dummy0: left promiscuous mode
[ 1807.916055] br0: port 1(dummy0) entered disabled state