Re: Problem while using HTB bandwidth limitation

Linux Advanced Routing and Traffic Control

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On Tuesday 02 September 2003 07:39, Nimit Gupta wrote:
> Hello,
>
> Thanks a lot Martin & Stef for clarifying my doubts. Your detailed
> explaination was quiet helpful in making the things clear.
>
> I agree that if I give 24Kbit for each leaf class they will get it
> without confirming about the total bandwidth available with the parent
> but why does it allow him to reach upto 48Kbit even when ceiling is 24Kbit?
Is this his for a short term, like a burst?

> > In order for you to control
> > latency and bandwidth use, you must ensure that you are the slowest
> > point. Annoyingly, the only successful way to identify exactly what speed
> > to use as a bandwidth cap is experimentation.  A good general suggestion
> > is to lop off a couple of kbit and try capping your bandwidth exactly as
> > Stef suggests.  Try using 188kbit, and see if your apparent control
> > increases.
>
> Is there a ratio between the total available bandwidth and the amount
> you restrict it to or you can just arbitarily reduce by 5-7 Kbit.
It should be quite accurate.  I tested it for different rates / ceils and each 
time the results where allmost perfect.

Stef

-- 

stef.coene@xxxxxxxxx
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net

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