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From: Vicent Roca Daniel <saptah2000@yahoo.es>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Data rate accuracy started failing.
Date: Wed, 29 Oct 2003 22:11:14 +0000	[thread overview]
Message-ID: <marc-lartc-106746611921008@msgid-missing> (raw)
In-Reply-To: <marc-lartc-106746221115806@msgid-missing>

Peteris Krumins wrote:

> Dear all,
>
>  I am an experienced unix administrator and a long time ago (1+ year)
>  I made traffic-shaping system for an ISP (~400 clients).
>
>  Each ip address requires 4 classes -
>   2 for incoming (internet->client), one for international traffic,
>     the other for local-country and border-country traffic.
>     and
>   2 for outgoing (client->internet), for the same purposes.
>
> Everything worked ok until last week, when more clients
> were added. The data rate (rate NNkbit) is no longer stable -
> sometimes it exceeds the rate specified and sometimes
> there is starvation. And no, there is still planty of traffic
> left, so its not a problem of bandwidth capacity.
>
> The technique used is htb + sfq for traffic exceeding 0.8mbit/s,
> for traffics up to 0.8mbit/s as it is not cpu-intensive
> (but depends on HZ for calculations)
>
> Are there any limits I am not aware of? It seems that everything
> works ok again if I remove some addresses (single address /32 or
> larger networks). I am not sure which part fails, filtering
> or actual shaping.
>
> And, it is vanilla Linux 2.4.20 with qos services coming with
> it.
>
> Also, i never came up with the other question: there has always
> been problem with tbf. For example, rate 256kbit is specified but the
> actual rate never exceeds 230 - 250kbit, so I add 30kbit for each
> rate (so 256 becoms 286kbit) so client got exactly his 256kbit.
> 
>
>thanks,
>P.Krumins
>
>_______________________________________________
>LARTC mailing list / LARTC@mailman.ds9a.nl
>http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
>
>  
>
Hi!
mmm I'm new in the forum.. but, ¿can you paste your scripts?
I wanna do something like your traffic-shaping system.
Sorry for my English, I'm from Spain.

_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

      reply	other threads:[~2003-10-29 22:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-29 20:50 [LARTC] Data rate accuracy started failing Peteris Krumins
2003-10-29 22:11 ` Vicent Roca Daniel [this message]

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