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Re: TCP congestion

  • From: Philip Lavine
  • Date: Thu Jul 12 15:10:11 2007
  • Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024;; h=X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type b=o8K5L4iQddCaql75FT6+jzTiP46Zb6DufoYvftGz9PmfT+o9A7nJkLNyq6u81Cf23w5Sw0SkjZGj

Even if the segment was received out of order what would cause congestion avoida
nce to starve the connection of legitimate traffic for 15 to 20 seconds? That is
 the core of the problem.

----- Original Message ----
From: Fred Baker <[email protected]>
To: Brian Knoll <[email protected]>
Cc: Philip Lavine <[email protected]>; nanog <[email protected]>
Sent: Thursday, July 12, 2007 11:56:06 AM
Subject: Re: TCP congestion

On Jul 12, 2007, at 11:42 AM, Brian Knoll ((TTNET)) wrote:

> If the receiver is sending a DUP ACK, then the sender either never
> received the first ACK or it didn't receive it within the timeframe it
> expected.

or received it out of order.

Yes, a tcpdump trace is the first step.

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