[83685] in North American Network Operators' Group
Re: Question about propagation and queuing delays
daemon@ATHENA.MIT.EDU (Eric A. Hall)
Mon Aug 22 11:34:30 2005
Date: Mon, 22 Aug 2005 11:32:43 -0400
From: "Eric A. Hall" <ehall@ehsco.com>
To: David Hagel <david.hagel@gmail.com>
Cc: nanog@merit.edu
In-Reply-To: <c6ae07ec05082208144da6b29@mail.gmail.com>
Errors-To: owner-nanog@merit.edu
On 8/22/2005 11:14 AM, David Hagel wrote:
> This is interesting. This may sound like a naive question. But if
> queuing delays are so insignificant in comparison to other fixed delay
> components then what does it say about the usefulness of all the
> extensive techniques for queue management and congestion control
> (including TCP congestion control, RED and so forth) in the context of
> today's backbone networks?
Latency is cumulative. Knocking a little time off Part A will still act to
shorten total time, regardless of the time occupied by Part B
Queuing behaviors are also significant when you are suffering congestion,
apart from the delay factors
--
Eric A. Hall http://www.ehsco.com/
Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
