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From: Damion de Soto <damion@snapgear.com>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Please check the follow script for diffserv
Date: Wed, 20 Aug 2003 00:24:19 +0000	[thread overview]
Message-ID: <marc-lartc-106133917410818@msgid-missing> (raw)
In-Reply-To: <marc-lartc-106024505223878@msgid-missing>

Steffen Moser and Raghuveer wrote:

SM> If I then want to shape the traffic I send to the "ppp0" interface,
SM> which bandwidth would be used for setting up a CBQ?
SM>
SM> I suppose that here the "virtual" (e.g. limited by the ISP) bandwidth
SM> of my "ppp0" connection (e.g. 128 kbit/s) is the interesting one, not
SM> the bandwidth of my "eth0" (10 Mbit/s), because the CBQ is attached
SM> to the "ppp0" device and has nothing to do with the underlaying "eth0".
SM>
SM> Is this assumption correct?
no.
SM>
SM> TIA,
SM> Steffen
R>
R> Can you please tell me for HTB and CBQ what bandwidth should I use whether
R> interface bandwidth or real/actual bandwidth....?
R> Regards
R> -Raghu

as it says in the HOW-TO, the cbq device uses the ethernet speed (bandwidth) for idle 
time calculations.  so when you create a cbq qdisc, it needs to know either 10mbit or 
100mbit.
you then use the 'interesting' DSL/ISP speeds for the classes.

htb qdiscs don't need to know any speeds.

regards.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Damion de Soto - Software Engineer  email:     damion@snapgear.com
SnapGear ---                           ph:         +61 7 3435 2809
  | Custom Embedded Solutions          fax:         +61 7 3891 3630
  | and Security Appliances            web: http://www.snapgear.com
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  parent reply	other threads:[~2003-08-20  0:24 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-07  8:29 [LARTC] Please check the follow script for diffserv anzp
2003-08-07 12:42 ` Steffen Moser
2003-08-07 16:45 ` Stef Coene
2003-08-14  9:13 ` Raghuveer
2003-08-14 13:41 ` Martin A. Brown
2003-08-15 10:02 ` Steffen Moser
2003-08-18 11:16 ` Raghuveer
2003-08-18 23:41 ` Damion de Soto
2003-08-19  9:42 ` Steffen Moser
2003-08-19 10:23 ` Raghuveer
2003-08-20  0:24 ` Damion de Soto [this message]
2003-08-20  6:36 ` Raghuveer
2003-08-20 19:30 ` Martin A. Brown
2003-08-21  5:11 ` Raghuveer

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