Re: QoS for VoIP

Linux Advanced Routing and Traffic Control

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The prio qdisc is the solution. Try this.

On Thu, 27 Sep 2007 10:31:08 +0800, Ming-Ching Tiew wrote
> As you are probably aware, this is a ever green topic.
> 
> I have personally tried doing it, testing it and verifying it
> and I am myself finding this problem challenging and frustrating.
> 
> Most of the scripts will recommend some form of rate limiting
> ( or policing ) on the download. But the challenge is how to 
> determine the correct value for the policing ?
> 
> Lot of the recommendation says use x % over the sales package 
> figure. Is this the correct way to do it ? Should it be a more
> engineering way to empirically determine it ?
> 
> What I noticed is that if I over-specify the x %, then I
> will greatly limit the utilizable bandwidth. The LAN users will
> noticed significant difference in download speed compared
> to when QoS is not running. But if I under specify the
> x %, then the entire VoIP QoS has no significance, and
> the VoIP quality will be bad.
> 
> Any views or comments ?
> 
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Este mensaje ha sido analizado por MailScanner
en busca de virus y otros contenidos peligrosos,
y se considera que está limpio.
MailScanner agradece a transtec Computers por su apoyo.

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