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Date:      Sat, 10 Aug 2002 10:52:59 -0400
From:      "Charles Swiger" <chuck@codefab.com>
To:        <freebsd-stable@FreeBSD.ORG>
Subject:   Re: dummynet and Fastrack/Kazaa?
Message-ID:  <000001c24088$0044bd30$0301a8c0@prime>
References:  <20020810115843.B6225-100000@phoenix.vh.laserfence.net>

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Willie Viljoen wrote:
> I've recently been facing the problem that people with these P2P
> clients are eating up major bandwidth. For this reason I've
> implemented dummynet to try and curb them abit.
>
> The problem now is that I keep getting complaints that "my kazaa
> doesn't work at all"

First, they're probably used to being able to suck 128+ Kbit streams in
realtime (which is why they're "eating major bandwidth" :-).  Tell 'em to
reconfigure their clients for 56K connectivity speeds rather than broadband
speeds, and tell 'em to get used having to wait for the song or whatever to
buffer, first.

A potentially better solution would be to implement QoS with different
priority packet queue groups (using dummynet pipes), rather than using fixed
bandwidth limits.  Or combine the two approaches, but give a larger
bandwidth cap.  That way, other traffic gets the nod when that other traffic
exists, but the P2P guys can use spare bandwidth when nothing else is going
on.

-Chuck



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