On Fri, Jul 13, 2001 at 09:52:28AM -0500, Dan Nelson wrote:
> Considering that w2k and Linux both have sack enabled by default, it's
> not going away.  Do you have a link to the thread that says sack
> doesn't help?

The best I can find is at the bottom of
http://ftp.ee.lbl.gov/floyd/sacks.html
which has http://www.cs.Berkeley.edu/~hari/papers/csd-97-966.ps on it.
They do not seem to suggest that SACK _decreases_ performance, but
they suggest from real world data capture that it would only help
on 4% of the connections in that experience congestion in a production
enviornment, and is thus probably not the best solution.

My take it is that it's the best solution we have today, and best means
"it helps in very few cases".  One could argue it would be better to
find a solution that works in more cases, but for now I would think 
SACK should be implemented so we have the best known solution.

-- 
Leo Bicknell - [EMAIL PROTECTED]
Systems Engineer - Internetworking Engineer - CCIE 3440
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