From owner-freebsd-isp  Tue Mar 16  3:13:28 1999
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From: Luigi Rizzo <luigi@labinfo.iet.unipi.it>
Message-Id: <199903160854.JAA21390@labinfo.iet.unipi.it>
Subject: Re: dummynet bandwidth
To: Karel.Taft@SkyNet.CZ (Karel Taft)
Date: Tue, 16 Mar 1999 09:54:21 +0100 (MET)
Cc: freebsd-isp@FreeBSD.ORG
In-Reply-To: <36EE234D.5D7B654E@SkyNet.CZ> from "Karel Taft" at Mar 16, 99 10:24:10 am
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> Hello,
> 
> could you write what's recommended queue size for dummynet
> bandwidth (for example 64Kbit/s line)?
> 
> Is this rule correct?
> /sbin/ipfw pipe 13 config bw 64Kbit/sec delay 35ms queue 69packets

my rule of thumb is generally to stay within 2-3s worth of data on
slow pipes, and below 0.5s on fast pipes. In your case i'd probably
set something like "queue 15KB".  There is no reason to add delay.

	cheers
	luigi


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