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From: don-lartc@isis.cs3-inc.com (Don Cohen)
To: lartc@vger.kernel.org
Subject: Re: [LARTC] "dynamic rate" in htb classes?
Date: Wed, 16 Apr 2003 17:47:11 +0000	[thread overview]
Message-ID: <marc-lartc-105051562026378@msgid-missing> (raw)


 > > In other words: Class B's rate should always be x times the _current_ rate
 > > of class A. Ceiling rates should apply nevertheless though.
 > >
 > > e.g.: Class A: rate 500 kbit, ceil 2000 kbit
 > >       Class B: rate 0.25 * (current rate of class A), ceil 1000 kbit
 > You can only do this with external scripting.

There are two possible interpretations for the term "current rate".
If you mean the one declared, then I think Stef is correct.
That is, you can declare class B to have rate 125k which is .25 that
of class A, but if you then change class A to 1000, class B is still 
125, no longer .25 class A.

However, you more likely mean that the bandwidth actually used
for class B at any time should be .25 that of class A.
And this is the default behavior if you just declare the class B rate
to be 125.  That is, excess bandwidth is shared in proportion to the
requested rates.  Just put A and B below a common parent (perhaps with
a ceil of 3000k).
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                 reply	other threads:[~2003-04-16 17:47 UTC|newest]

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