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On Nov 8, 2004, at 1:53 PM, Jonathan Stone wrote:

> Yes, but if you get packet loss (e. g., due to congestion from
> multiple flows crossing the router onto one or other subnet), then the
> stretch-ACK bug breaks Fast Recovery, and you incur full slow
> timeouts. Which sounds to me more like what Bill was seeing.

Yes, certainly.  I was merely explaining stretch-ack because Bill asked 
:-)


> Historical note: I seem to recall that back then, NetBSD's TCP would
> actually send one ACK every 3 segments in steady-state; which was
> fixed when you fixed the stretch-ACK bug.

That's certainly possible.  You'll forgive me if my memory isn't so 
crisp on a 7 year-old event :-)

         -- Jason R. Thorpe <thorpej@shagadelic.org>


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