[ 1759.795345] br0: port 1(dummy0) entered blocking state
[ 1759.795387] br0: port 1(dummy0) entered disabled state
[ 1759.795427] dummy0: entered allmulticast mode
[ 1759.795481] dummy0: entered promiscuous mode
[ 1759.798871] br0: port 1(dummy0) entered blocking state
[ 1759.798936] br0: port 1(dummy0) entered forwarding state
[ 1760.012358] dummy0: left allmulticast mode
[ 1760.012387] dummy0: left promiscuous mode
[ 1760.012412] br0: port 1(dummy0) entered disabled state