Re: Other computers HIGHLY degrading network performance (DoS?)

Anuradha Ratnaweera
2001-10-26T04:13:58Z

On Fri, Oct 26, 2001 at 09:05:05AM +0600, Anuradha Ratnaweera wrote:
> On Thu, Oct 25, 2001 at 10:55:16PM -0400, Jeffrey H. Ingber wrote:
> >
> > I think this is what QoS and the like are for.
>
> Well, we _are_ going to solve the problem using a firewall between the router
> and the local area network.
>
> But the real problem is a different one.
>
> One machine begins an intensive downloading job. How can this degrade the
> network performance even for ICMP packets between another machine and the
> router? Notice that this can't be collitions because the download goes at
> 64kbps and the local network is 100 Mbps. Something funny is going on to
> stop other people's packets.

Just found out that this is _not_ a problem of the "download accelerator", but
something to do with queuing algorithm of the router. Even a normal wget
process or a big mail has a big impart on the network. Hopefully an iptables
firewall would solve the problem.

Thanks.

Regards,

Anuradha

--

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