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From: Mario Giammarco <mgiammarco@supereva.it>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] priority bands don't reduce interactive latency?
Date: Fri, 15 Feb 2002 18:23:22 +0000	[thread overview]
Message-ID: <marc-lartc-101379743217582@msgid-missing> (raw)
In-Reply-To: <marc-lartc-98373938216950@msgid-missing>

Il mer, 2002-02-13 alle 16:11, Danny Lepage ha scritto:
> You didn't say if you were using DSL / Cable modem whatever but for

Ok, I will be more esplicit:

main computer --------------- router(486dx2)----------- serial modem 56k

192.168.0.1               192.168.0.10  | dynamic
                          htb max 50kbit| prio

> In this case, you need to do shaping so that the traffic is queued in
> linux, not in the modem.
> 
> Have a look at
> http://ds9a.nl/lartc/HOWTO//cvs/2.4routing/output/2.4routing-15.html#ss15.8 for further information.
> 
I started reading the howto even before htb was programmed.
I have done an network examination where I showed how to implement
diffserv using cbq.
I then discovered that cqb was not accurate.
In new howto I discovered htb but it seems that latency goes very high.
I used script from howto. I will publish it if you ask but it seems
there is some serious problem in htb or prio. I am not alone as you can
see.

> > I have just read this message (of 2 years ago...) and I have the same
> > problem: I have a similar setup (I have used prio and htb) and when link
> > is full latency of classes with high priority raise from 200 to 2000ms.
> > In htb tutorial it show that latency of classes with prio 0 goes down.
> > Using prio does not work. Is there something missing?
> > 
> > -- 
> 
> 


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  reply	other threads:[~2002-02-15 18:23 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-11-18  6:15 [LARTC] priority bands don't reduce interactive latency? Dan
2002-02-15 18:23 ` Mario Giammarco [this message]
2002-02-15 18:27 ` Martin Devera
2002-02-16 12:47 ` Mario Giammarco
2002-02-16 16:13 ` Ross Skaliotis
2002-02-16 19:26 ` Martin Devera
2002-02-18  8:34 ` Mario Giammarco
2002-02-18 10:00 ` Martin Devera
2002-02-21 15:03 ` Mario Giammarco
2002-02-22  9:38 ` Martin Devera

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