Re: [LARTC] htb guarantee bandwidth

[Stef Coene <stef.coene@docum.org>]

On Friday 30 August 2002 22:35, Jason Tackaberry wrote:
> On Thu, 2002-08-29 at 08:53, Stef Coene wrote:
> > The prio is only used to split the traffic that's available after the
> > rates are satisfied.  In this case, the prio will change nothing.  But if
> > you have 3 classes like :
>
> Yes, the prio will change nothing, so it might as well look like this:
>
>   class parent 1: classid 1:5 htb rate 128kbit
>   class parent 1:5 classid 1:1 htb rate 64kbit ceil 128kbit prio 1
>   class parent 1:5 classid 1:2 htb rate 64kbit ceil 128kbit prio 1
>
> If we put the client with the guaranteed rate (call him A) into 1:1, and
> the other two clients (B and C) into 1:2, it should work out the same
> way.  If A uses 64kbit, the remaining 64kbit is split between B and C,
> and assuming there is a fair qdisc attached to 1:2, they should each get
> 32kbit.  If B is inactive, both A and C will get 64kbit: their classes'
> guaranteed rates.  If A is inactive, 1:2 will hit the ceil and B and C
> will share 128kbit, so each gets 64kbit.
Better, attach 2 new classes to 1:2 :

class parent 1:2 classid 1:10 htb rate 16kbit ceil 128kbit prio 1
class parent 1:2 classid 1:20 htb rate 48kbit ceil 128kbit prio 1

Class 10 will get 25% of the available bandwidth of class 1:2 and class 20 
75%.

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
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