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Date:      Fri, 22 Feb 2002 09:27:03 -0800
From:      Luigi Rizzo <rizzo@icir.org>
To:        Michael Sierchio <kudzu@tenebras.com>
Cc:        FreeBSD user <freebsd@XtremeDev.com>, freebsd-ipfw@FreeBSD.ORG
Subject:   Re: ipfw, dummynet, weights, and ssh?
Message-ID:  <20020222092703.A62387@iguana.icir.org>
In-Reply-To: <3C7673C6.9060706@tenebras.com>
References:  <20020222031809.M37938-100000@Amber.XtremeDev.com> <3C7673C6.9060706@tenebras.com>

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On Fri, Feb 22, 2002 at 08:37:26AM -0800, Michael Sierchio wrote:
> FreeBSD user wrote:
> >I'm trying to decipher ipfw syntax related to dummynet, and I'm not having
> >much luck. Basically all I want to do is give priority to all ssh
> >connections, both outbound and inbound. If the line is saturated I should
> >still be able to ssh in and out of my server, hopefully without too much
> >lag. Is this possible with ipfw/dummynet's WF2Q+ policies? And if so, any
> >examples you can provide would greatly help. Thanks in advance.
> 
> Dummynet doesn't provide dynamic bandwidth limiting based on load

wrong.
You can use queues (WF2Q+) to do this kind of sharing.

	cheers
	luigi

> or traffic.  You can use a clever combination of bandwidth-limiting
> pipes and masks to ensure that no one connection uses more that X%
> of your (theoretical) bw.
> 
> You could make all non-ssh connections go through a bw-limiting
> pipe (75-85%).
> 
> 
> 
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