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Date:      Mon, 21 Jul 2003 09:16:36 -0700
From:      Michael Sierchio <kudzu@tenebras.com>
To:        patrick@filespanker.com
Cc:        freebsd-ipfw@FreeBSD.ORG
Subject:   Re: Not specifying bandwidth for Dummynet
Message-ID:  <3F1C11E4.7000309@tenebras.com>
In-Reply-To: <200307210840.01042.patrick@filespanker.com>

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Patrick C wrote:
> I'm on a cable connection, and the bandwidth is varying at different times of 
> the day. Because of the dynamic speed of this connection, is specifying the 
> bandwidth limits required when creating a dummynet pipe? For example... could 
> I just create the pipe with "ipfw pipe 10 config queue 25k/s" ?

Set the pipe bw to be the maximum you'll ever get.

Set the queue length to be something like avg latency * avg bw.

You can do more interesting things with queues, but start there.


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