[ 1760.643340] br0: port 1(dummy0) entered blocking state
[ 1760.643376] br0: port 1(dummy0) entered disabled state
[ 1760.643411] dummy0: entered allmulticast mode
[ 1760.643463] dummy0: entered promiscuous mode
[ 1760.646313] br0: port 1(dummy0) entered blocking state
[ 1760.646348] br0: port 1(dummy0) entered forwarding state
[ 1760.842182] dummy0: left allmulticast mode
[ 1760.842271] dummy0: left promiscuous mode
[ 1760.842331] br0: port 1(dummy0) entered disabled state