From: Jesper Dangaard Brouer <jdb@comx.dk>
To: Pedro Tumusok <pedro.tumusok@gmail.com>
Cc: bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] Bismark router + ecn + red tested
Date: Wed, 11 May 2011 14:42:41 -0400 [thread overview]
Message-ID: <1305139361.2688.41.camel@probook> (raw)
In-Reply-To: <BANLkTinsk-k6bqb683y8nKzh4vx+TzMb0g@mail.gmail.com>
On Wed, 2011-05-11 at 10:49 +0200, Pedro Tumusok wrote:
> I got a Linux based router, ZyXEL P2612 (ADSL2+) and also the P2812
> (VDSL2) both got an ethernet wan port also.
> I can mess around with qdisc on it, since the web ui QoS setup just
> creates qdisc settings to correspond.
Please remember to take the ADSL overhead into account, when configuring
HTB, or else we/you don't have control over the queue, which is the
hole-point when trying to solve bufferbloat by AQM/shaping.
Simply add parameters when creating qdisc:
linklayer adsl
and
overhead XXX
BTW, I don't think its needed, when using VDSL2, as I think its
linklayer is not ATM.
> [...] cut [...]
> Its got an old kernel, with lots of patches to kernel I think, so not
> sure if its easily done to create a new kernel for it either.
>
> # uname -an
> Linux P-2612HNU-F3 2.6.20.19 #44 Wed Mar 30 10:58:43 CST 2011 mips unknown
Damm, linklayer overhead got introduced in 2.6.24.
--
Best regards,
Jesper Dangaard Brouer
ComX Networks A/S
Linux Network Kernel Developer
Cand. Scient Datalog / MSc.CS
Author of http://adsl-optimizer.dk
LinkedIn: http://www.linkedin.com/in/brouer
prev parent reply other threads:[~2011-05-11 18:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-10 23:22 Dave Taht
2011-05-11 8:49 ` Pedro Tumusok
2011-05-11 13:35 ` Dave Taht
2011-05-11 18:42 ` Jesper Dangaard Brouer [this message]
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