[ 1759.113897] br0: port 1(dummy0) entered blocking state
[ 1759.113938] br0: port 1(dummy0) entered disabled state
[ 1759.113973] dummy0: entered allmulticast mode
[ 1759.114026] dummy0: entered promiscuous mode
[ 1759.117483] br0: port 1(dummy0) entered blocking state
[ 1759.117546] br0: port 1(dummy0) entered forwarding state
[ 1759.360366] dummy0: left allmulticast mode
[ 1759.360402] dummy0: left promiscuous mode
[ 1759.360433] br0: port 1(dummy0) entered disabled state