[97841] in North American Network Operators' Group
Re: TCP congestion
daemon@ATHENA.MIT.EDU (Fred Baker)
Thu Jul 12 14:57:07 2007
In-Reply-To: <D4C8D8B144E6DE49AA3FC67557D58733061F4021@chiex01>
Cc: "Philip Lavine" <source_route@yahoo.com>, "nanog" <nanog@merit.edu>
From: Fred Baker <fred@cisco.com>
Date: Thu, 12 Jul 2007 11:56:06 -0700
To: Brian Knoll ((TTNET)) <Brian.Knoll@tradingtechnologies.com>
Errors-To: owner-nanog@merit.edu
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.
