From owner-freebsd-security  Wed Sep 26 10:25: 9 2001
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Date: Wed, 26 Sep 2001 13:24:48 -0400 (EDT)
From: Joseph Gleason <clash@zogbe.tasam.com>
To: =?iso-8859-1?q?Adam=20Nealis?= <adamnealis@yahoo.co.uk>
Cc: <freebsd-security@FreeBSD.ORG>
Subject: Re: Using ipfw pipes for bandwidth management - can it allow for
 "bursting"?
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man 4 dummynet

I has more info about what the ipfw pipe commands do.

Once you have dummynet compiled into your kernel, you can use use IPFW
rules to manage bandwidth.


On Wed, 26 Sep 2001, [iso-8859-1] Adam Nealis wrote:

> Hi all,
>
> I have perused the list archives and RTFM on ipfw
> (which I use on this machine at home). I am interested
> in investigating some free bandwidth management tools
> and as a FreeBSD fan I'd like to use something that was
> part of the core OS.
>
> What I want to do is to restrict connections by IP
> address to having a nominal bandwidth, but allow for
> occasional bursts.
>
> In going through the ipfw man page, I came across
>
> pipe number config [bw bandwidth | device] [delay ms-delay]
> [queue {slots | size}] [plr loss-probability]
> [mask mask-specifier] [buckets hash-table-size]
> [red | gred w_q/min_th/max_th/max_p]
>
> and it looks like red/gred are important in traffic shaping
> and maybe bursting. However, I have been unable to find a
> description of what exactly the w_q/min_th/max_th/max_p
> parameters mean.
>
> Which brings me here ;)
>
> Am I going along the right lines with this or am I already
> tangential? Are there better, (preferably free) tools out
> there that I can use for this?
>
> Thanks,
> Adam Nealis.
>
>
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