Re: QOS HELP PLEASE

Linux Advanced Routing and Traffic Control

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--- "Martin A. Brown" <mabrown-lartc@xxxxxxxxxxxxxx>
wrote:

> 
> Dariusz,
> 
>  : so the sum of all rates of speeds of classes for
> the clients should be 
>  : less than the rate of the class 1:2 ? or i
> understand it badly ?
> 
> Indeed, you understand correctly.  Your client
> classes are leaf classes.
> 
>   - An HTB leaf class guarantees <rate> access.
>   - Above <rate>, the leaf class will borrow (from
> parents) up to <ceil>.
> 
> This bears repetition:  the guaranteed total of
> bandwidth, before HTB 
> shaping and borrowing begins, is the sum of the
> rates of the leaf classes.

(snip)

Can it ever be truly equal? There is going to be some
overhead in having the multiple layers, so although
the sum of the rates at level N can never exceed the
rate of the parent layer at N-1, the penalties must
mean that it must be marginally less (even if this is
so marginal as to be hard to detect).



		
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