[83692] in North American Network Operators' Group
Re: Question about propagation and queuing delays
daemon@ATHENA.MIT.EDU (Petri Helenius)
Mon Aug 22 12:31:54 2005
Date: Mon, 22 Aug 2005 19:30:13 +0300
From: Petri Helenius <pete@he.iki.fi>
To: Tony Finch <dot@dotat.at>
Cc: David Hagel <david.hagel@gmail.com>,
"Robert E. Seastrom" <rs@seastrom.com>,
Richard A Steenbergen <ras@e-gerbil.net>, nanog@merit.edu
In-Reply-To: <Pine.LNX.4.60.0508221717430.32180@hermes-1.csi.cam.ac.uk>
Errors-To: owner-nanog@merit.edu
Tony Finch wrote:
>TCP performs much better if queueing delays are short, because that
>means it gets feedback from packet drops more promptly, and its RTT
>measurements are more accurate so the retransmission timeout doesn't get
>artificially inflated.
>
>
Sure, but sending speculative duplicate ack's if you're competing
seriously of transit bandwidth works even better...
Not sure how to set the evil bit on the packets though...
Pete
