From: Stef Coene <stef.coene@docum.org>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Wonder Shaper - New Features - Unofficial Version
Date: Fri, 30 May 2003 18:28:44 +0000 [thread overview]
Message-ID: <marc-lartc-105431939202744@msgid-missing> (raw)
In-Reply-To: <marc-lartc-105428707601624@msgid-missing>
> > I have some remarks on the wshaper.
> > - The bandwidth parameter should reflect your real link bandwidth
> > parameter. So it's 100mbit if the NIC is connected with 100Mbit to the
> > router/switch/modem. Its _NOT_ the modem bandwidth.
>
> huh? I thought rule 1 of traffic shaping was to take control of the
> traffic buffer. If you belch traffic at the modem and it cues there
> instead of your Linux box, how are you going to prioritize anything?
The bandwidth parameter is used to calculate the idle time of the link. So
sending 1mbit on a 10mbit link means 90% idle time. It has nothing to do
with maximum of traffic you can send. Cbq needs also a valid allot and avpkt
parameter for the same reason : to calculate the link idle time of the NIC.
Limiting the total traffic is done with the bounded 1:1 class attached to the
root qdisc.
Stef
--
stef.coene@docum.org
"Using Linux as bandwidth manager"
http://www.docum.org/
#lartc @ irc.oftc.net
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prev parent reply other threads:[~2003-05-30 18:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-30 9:24 [LARTC] Wonder Shaper - New Features - Unofficial Version Gordan Bobic
2003-05-30 17:28 ` Stef Coene
2003-05-30 17:40 ` John McCain
2003-05-30 18:28 ` Stef Coene [this message]
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