[ 1593.824745] br0: port 1(dummy0) entered blocking state
[ 1593.824782] br0: port 1(dummy0) entered disabled state
[ 1593.824813] dummy0: entered allmulticast mode
[ 1593.824870] dummy0: entered promiscuous mode
[ 1593.827722] br0: port 1(dummy0) entered blocking state
[ 1593.827788] br0: port 1(dummy0) entered forwarding state
[ 1594.018140] dummy0: left allmulticast mode
[ 1594.018168] dummy0: left promiscuous mode
[ 1594.018196] br0: port 1(dummy0) entered disabled state