Re: [LARTC] HTB stats

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

On Wednesday 26 June 2002 23:43, Anton Yurchenko wrote:
> hello,
>
> about output of tc -s -d .....
>
> about my setup:
> all input and output is done on one interface, box recives on it and
> from it it forwards.
> very simple, a root 1:1 for output  and 1:2 for input classes at
> 100mbit. and below lots of children with different rates.
> ceil for children is 1/3 of rate.
So the ceil is smaller then the rate?

> questions:
> 1. why do I have "lended" for children classes almost the same as
> "sent", who do they lend to? the neighboring classes?
Yes, to other classes.
"lended is # of packets donated by this class (from its rate)"

> 2. What is overlimits? is it incremented when certain pkt goest above
> "rate", what if both "rate" and "ceil"? incremented twice?
overlimits : Packet is not sended due to ceil or rate restrictions  So there 
was to much data in the class.  But don't believe this too much.  It depends 
on how often the qdisc looked for packet.

> 3. "dropped"- if the pkt is overlimit it may be dropped right? if it
> cannot be delayed, right? is  this the reason why I have such a
> difference between them?
Between what?

> 4. what is "level", the level in classes tree?
"Level of class determines its position in hierarchy. Leaves has level 0, 
root classes LEVEL_COUNT-1 and each inner class has level one less than its 
parent. See pictures below (LEVEL_COUNT=3 there). "

I quoted some info from http://luxik.cdi.cz/~devik/qos/htb/

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.openprojects.net
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