From: Stef Coene <stef.coene@docum.org>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] HTB timer??
Date: Wed, 14 May 2003 09:57:30 +0000 [thread overview]
Message-ID: <marc-lartc-105290632715590@msgid-missing> (raw)
In-Reply-To: <marc-lartc-105290411713831@msgid-missing>
On Wednesday 14 May 2003 11:20, Lars Landmark wrote:
> Hi;
> As I understand, HTB use a timer in order to calculate rate. In addition
> it also use timer to tell whether classes are allowed to send packets or
> not.
> Could somebody tell me how this timer is calculated??
http://www.docum.org/stef.coene/qos/faq/cache/40.html
> If you have, say, a link with capacity 10MB. If you so configure using HTB
> two classes with the same parent to use 5MB each with priority 0,1 and
> ceil 10MB. What would happen if bandwidth decrease to under 5MB.
>
> Would the highest prio class be the only served??
No. Each class can send it's rate as a minimum. Prio is only used to
distribute remaining bandwidth and to determine the order of the classes so
the highest priority class has the lowest delays.
If you have a 10mbit class with 2 classes of each 2mbit and prio 0 and 1.
Each class can send 2mbit. And the class with prio 0 can use the remaining
6mbit. So you have 2 classes with rate 2mbit and 8mbit.
Remember : the lower the prio, the higher the priority.
Stef
--
stef.coene@docum.org
"Using Linux as bandwidth manager"
http://www.docum.org/
#lartc @ irc.oftc.net
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next prev parent reply other threads:[~2003-05-14 9:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-14 9:20 [LARTC] HTB timer?? Lars Landmark
2003-05-14 9:57 ` Stef Coene [this message]
2003-05-16 6:38 ` Lars Landmark
2003-05-16 9:33 ` Stef Coene
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