> This too interests me... I have seen this done on OpenBSD but the same tools > they use are not for Linux.. anyone out there know this? you can do this with tc. just use an u32 match to add a rule to filter acks and prioritize them into queues. Please read the lartc on http://www.lartc.org It is full of examples, a cookbook and a good description of queing disciplines, filters, matches, etc... Regards, Maciej