Semioff-topic: DoS mitigation technique mentioned in SA-list

[Pedro David Marco]

Hi all,
Not a long time ago someone in the list mentioned an interesting antiDos 
mitigation technique consisting in "playing" with attackers TCP windows 
sizes... (as far as i remember)... but i cannot find the post with the name of 
the tehcnique :-(
Please, if someone remembers the name of the technique, tell me off-list..
Thanks a lot in advance...
-------PedroD.