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SubjectRe: 2.6.17: networking bug??
From: Rick Jones <>
Date: Tue, 13 Jun 2006 15:40:53 -0700

> > One final word about window sizes. If you have a connection whose
> > bandwidth-delay-product needs an N byte buffer to fill, you actually
> > have to have an "N * 2" sized buffer available in order for fast
> > retransmit to work.
> Is that as important in the presence of SACK?

The consern is identical, SACK or not.

The only difference SACK introduces for fast retransmit is that we
know with more certainty which holes need to be filled and thus which
packets to fast retransmit.
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