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From: richard <richard@pacdat.net>
To: Dave Hart <hart@ntp.org>
Cc: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] Thoughts on Stochastic Fair Blue
Date: Thu, 24 Mar 2011 13:44:32 -0700	[thread overview]
Message-ID: <1300999472.12456.22.camel@amd.pacdat.net> (raw)
In-Reply-To: <AANLkTimij92OZw8qnuPgQ_UwhMuLEk_xeAHp9ySGih4x@mail.gmail.com>



On Thu, 2011-03-24 at 05:30 +0000, Dave Hart wrote:
> On Thu, Mar 24, 2011 at 01:03 UTC, Juliusz Chroboczek wrote:
> >
> > [1] Aleksandar Kuzmanovic. The power of explicit congestion
> >    notification. In Proceedings of the 2005 conference on Applications,
> >    technologies, architectures, and protocols for computer
> >    communications. 2005.
> 
> http://www.cs.northwestern.edu/~akuzma/doc/ecn.pdf
> 
> appears to be the paper Juliusz cited.
> 
If nothing else, I take away from this paper that ECN should be applied
(at least) on servers (and they advocate clients and routers) to TCP
control packets (e.g. SYN and ACK packets) as well as data packets
despite the potential (accepted admin legend???) that this might be a
"bad thing" for reasons of aiding a potential SYN-flood attack vector. 

The point that doing this provides "instant" goodness for the ECN
machines and only gradual degradation of non-ECN machines provides
incentive to switch on ECN (and change to adding it to SYN/ACK too) no
matter what AQM is being used, even the brain-dead one they came up with
to test against RED.

richard

> Cheers,
> Dave Hart
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat
-- 
Richard C. Pitt                 Pacific Data Capture
rcpitt@pacdat.net               604-644-9265
http://digital-rag.com          www.pacdat.net
PGP Fingerprint: FCEF 167D 151B 64C4 3333  57F0 4F18 AF98 9F59 DD73


  reply	other threads:[~2011-03-24 20:44 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-13  1:40 Jonathan Morton
2011-03-24  1:03 ` Juliusz Chroboczek
2011-03-24  5:30   ` Dave Hart
2011-03-24 20:44     ` richard [this message]
2011-03-24 22:22       ` [Bloat] Packet drops, ECN and ECN+ [was: Thoughts on Stochastic Fair Blue] Juliusz Chroboczek
2011-03-25 19:22         ` Richard Scheffenegger
2011-04-03 16:35       ` [Bloat] Thoughts on Stochastic Fair Blue Juliusz Chroboczek
2011-04-03 18:03         ` Jonathan Morton
2011-03-24 11:59   ` Jim Gettys
2011-03-24 12:40   ` Jonathan Morton
2011-03-24 13:32     ` Eric Dumazet
2011-03-24 13:31 Dave Taht

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