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From: Dan Siemon <dan@coverfire.com>
To: bloat <bloat@lists.bufferbloat.net>,
	codel@lists.bufferbloat.net, cerowrt-devel@lists.bufferbloat.net
Subject: Re: [Bloat] [Codel] [Cerowrt-devel] FQ_Codel lwn draft article review
Date: Mon, 03 Dec 2012 22:13:57 -0500	[thread overview]
Message-ID: <1354590837.29387.9.camel@ganymede.home> (raw)
In-Reply-To: <1354550303.24281.103.camel@shinybook.infradead.org>

On Mon, 2012-12-03 at 15:58 +0000, David Woodhouse wrote:
> ADSL is basically just ATM with a strange PHY. You have a bunch of
> options for how you use this ATM link. Mostly it's RFC2364 PPP-over-ATM
> or it's PPPoE on top of RFC2684 Ethernet-over-ATM.

Speaking of xDSL, does anyone on the list happen to have a good
understanding of how much per-packet overhead there is on VDSL2? I've
been tweaking the buffering and shaping on my upstream link and noticed
unexpected behavior with small packets.

The link below (use wayback machine version) has a good description of
per-packet overhead for various forms of ADSL but I haven't found
something similar for more modern DSL variants.
http://www.adsl-optimizer.dk/thesis/
http://web.archive.org/web/20090422131547/http://www.adsl-optimizer.dk/thesis/

I started a discussion on DSLReports
http://www.dslreports.com/forum/r27565251-Internet-Per-packet-overhead-on-Bell-s-VDSL-ATM-based-
but experimentally the overhead discussed there doesn't appear to be
correct
http://www.coverfire.com/archives/2012/11/29/per-packet-overhead-on-vdsl2/




  reply	other threads:[~2012-12-04  3:14 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAA93jw5yFvrOyXu2s2DY3oK_0v3OaNfnL+1zTteJodfxtAAzcQ@mail.gmail.com>
2012-11-23  8:57 ` [Bloat] " Dave Taht
2012-11-23 22:18   ` Paul E. McKenney
2012-11-24  0:07     ` Toke Høiland-Jørgensen
2012-11-24 16:19       ` Dave Taht
2012-11-24 16:36         ` [Bloat] [Cerowrt-devel] " dpreed
2012-11-24 19:57         ` [Bloat] [Codel] " Andrew McGregor
2012-11-26 21:13         ` Rick Jones
2012-11-26 21:19           ` Dave Taht
2012-11-26 22:16         ` [Bloat] " Toke Høiland-Jørgensen
2012-11-26 23:21           ` Toke Høiland-Jørgensen
2012-11-26 23:39             ` [Bloat] [Cerowrt-devel] " dpreed
2012-11-26 23:58               ` Toke Høiland-Jørgensen
2012-11-27 16:41                 ` Oliver Hohlfeld
2012-11-28  0:51                   ` Toke Høiland-Jørgensen
2012-11-28 19:21                     ` Greg White
2012-11-28 19:45                       ` Simon Barber
2012-11-28 20:01                         ` Oliver Hohlfeld
2012-11-28 21:40                         ` Greg White
2012-11-28 20:09                       ` Oliver Hohlfeld
2012-11-28 21:45                         ` Greg White
2012-11-26 17:20       ` [Bloat] " Paul E. McKenney
2012-11-26 21:05       ` [Bloat] [Codel] " Rick Jones
2012-11-26 23:18         ` Rick Jones
2012-11-27 22:03     ` [Bloat] [Cerowrt-devel] " Jim Gettys
2012-11-27 22:31       ` David Lang
2012-11-27 22:54         ` Paul E. McKenney
2012-11-27 23:15           ` [Bloat] [Codel] " Andrew McGregor
2012-11-28  0:51             ` Paul E. McKenney
2012-11-28 17:36             ` Paul E. McKenney
2012-11-28 14:06         ` [Bloat] " Michael Richardson
2012-11-27 22:49       ` Paul E. McKenney
2012-11-27 23:53         ` [Bloat] [Codel] " Greg White
2012-11-28  0:27           ` Paul E. McKenney
2012-11-28  3:43             ` Kathleen Nichols
2012-11-28  4:38               ` Paul E. McKenney
2012-11-28 16:01                 ` Paul E. McKenney
2012-11-28 16:16                   ` Jonathan Morton
2012-11-28 17:44                     ` Paul E. McKenney
2012-11-28 18:37                       ` Michael Richardson
2012-11-28 18:51                         ` Eric Dumazet
2012-11-28 21:44                           ` Michael Richardson
2012-11-28 19:00                       ` Eric Dumazet
     [not found]                         ` <87vcckb0el.fsf@toke.dk>
2012-12-02 21:47                           ` Andrew McGregor
2012-12-03  8:04                             ` Dave Taht
2012-12-02 22:07                           ` Eric Dumazet
     [not found]                             ` <87lidgaynn.fsf@toke.dk>
2012-12-02 22:30                               ` Eric Dumazet
2012-11-28 17:20       ` [Bloat] " Paul E. McKenney
     [not found]         ` <20121202230635.GA16359@linux.vnet.ibm.com>
     [not found]           ` <87obib5qf8.fsf@toke.dk>
2012-12-03 11:31             ` Dave Taht
     [not found]               ` <87fw3n5m9g.fsf@toke.dk>
2012-12-03 14:58                 ` Paul E. McKenney
2012-12-03 15:49                   ` [Bloat] [Codel] " Eric Dumazet
2012-12-03 15:03               ` [Bloat] " Paul E. McKenney
2012-12-03 15:58               ` David Woodhouse
2012-12-04  3:13                 ` Dan Siemon [this message]
2012-12-04  9:23                   ` [Bloat] [Codel] " Alex Burr
2012-12-05  3:41                     ` Dan Siemon
2012-12-05 20:33                       ` Alex Burr
2012-12-06  4:12                         ` Dan Siemon
2012-12-06 23:41                           ` Alex Burr
2012-12-05  0:01                   ` Sebastian Moeller
2012-11-30  1:09       ` [Bloat] " Dan Siemon
2013-01-01 20:50         ` Dan Siemon

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