[ 1743.927816] br0: port 1(dummy0) entered blocking state
[ 1743.927881] br0: port 1(dummy0) entered disabled state
[ 1743.927953] dummy0: entered allmulticast mode
[ 1743.928037] dummy0: entered promiscuous mode
[ 1743.930783] br0: port 1(dummy0) entered blocking state
[ 1743.930814] br0: port 1(dummy0) entered forwarding state
[ 1744.124902] dummy0: left allmulticast mode
[ 1744.124935] dummy0: left promiscuous mode
[ 1744.124965] br0: port 1(dummy0) entered disabled state