Re: QoS for VoIP

Linux Advanced Routing and Traffic Control

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On Fri, 28 Sep 2007 09:09:20 +0800, Ming-Ching Tiew wrote
> From: "Santiago" <santiago@xxxxxxxxxxxxxxx>
> 
> > The prio qdisc is the solution. Try this.
> >
> 
> I wonder if that's speaking from experience or speaking from
> theoretical standpoint ? I have always been told, to control
> the traffic, I have to be the slowest link in the chain.
> 
> And my question is how slow I should be ! If you are
> not the slowest, you can't control. If you are damn slow,
> you are under-utilizing your bandwidth.
> 
> Read this section of LARTC :-
> 
>         http://lartc.org/howto/lartc.qdisc.html
> 
> You also have to be sure you are controlling the bottleneck of the 
> link. If you have a 100Mbit NIC and you have a router that has a 
> 256kbit link, you have to make sure you are not sending more data 
> than your router can handle. Otherwise, it will be the router who is 
> controlling the link and shaping the available bandwith. We need to 
> 'own the queue' so to speak, and be the slowest link in the chain. 
> Luckily this is easily possible.
> 
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Este mensaje ha sido analizado por MailScanner
en busca de virus y otros contenidos peligrosos,
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MailScanner agradece a transtec Computers por su apoyo.

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