[LARTC] Bandwidth management under linux

[LARTC] Bandwidth management under linux

[Johan Jordaan]

In my search to control bandwidth on my network I found 2 projects..

1. TC
2. BWM Tools - http://freshmeat.net/projects/bwmtools/

This brings me to 2 questions...

Firstly, can TC control bandwidth in both directions? I read that it
can only do 1 direction, which one I cant remember. Can you monitor
the load on the queues you define? Does TC support IPv6?

Secondly, BWM Tools seems to queue traffic to userspace and use some
kind of kernel module to allow it through or not. How efficient is
bandwidth control using ip queing to userspace? BWM Tools doesn't seem
to support IPv6  :(

If anyone else knows of a way I can shape traffic, please let me know.

Regards
Johan
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Bandwidth management under linux

[Johan Jordaan]

In my search to control bandwidth on my network I found 2 projects..

1. TC
2. BWM Tools - http://freshmeat.net/projects/bwmtools/

This brings me to 2 questions...

Firstly, can TC control bandwidth in both directions? I read that it
can only do 1 direction, which one I cant remember. Can you monitor
the load on the queues you define? Does TC support IPv6?

Secondly, BWM Tools seems to queue traffic to userspace and use some
kind of kernel module to allow it through or not. How efficient is
bandwidth control using ip queing to userspace? BWM Tools doesn't seem
to support IPv6  :(

If anyone else knows of a way I can shape traffic, please let me know.

Regards
Johan

Re: Bandwidth management under linux

[Arjan van de Ven]

On Thu, 2005-01-13 at 13:02 +0000, Johan Jordaan wrote:
> In my search to control bandwidth on my network I found 2 projects..
> 
> 1. TC
> 2. BWM Tools - http://freshmeat.net/projects/bwmtools/
> 
> This brings me to 2 questions...
> 
> Firstly, can TC control bandwidth in both directions? I read that it
> can only do 1 direction, which one I cant remember

google for "wondershaper" .... it'll be a great learning thing for you
and it can do bidirectional shaping

Re: Bandwidth management under linux

[Michele Mordenti]

Alle 14:02, giovedì 13 gennaio 2005, Johan Jordaan ha scritto:
> If anyone else knows of a way I can shape traffic, please let me
> know.

Look at this project:
The Click Modular Router Project
http://www.pdos.lcs.mit.edu/click/

Regards

-- 
Michele Mordenti
http://xoomer.virgilio.it/michele.mordenti

Re: [LARTC] Bandwidth management under linux

[Stef Coene]

On Thursday 13 January 2005 14:02, Johan Jordaan wrote:
> In my search to control bandwidth on my network I found 2 projects..
>
> 1. TC
> 2. BWM Tools - http://freshmeat.net/projects/bwmtools/
>
> This brings me to 2 questions...
>
> Firstly, can TC control bandwidth in both directions?
It can shape outgoing traffic.  If you have 2 network cards, you can shape in 
bothe directions.  But it can also throtlle incoming traffic if you want 
(this is not so powerfull as shaping outgoing traffic).

> I read that it 
> can only do 1 direction, which one I cant remember. 
Outgoing.

> Can you monitor 
> the load on the queues you define?
Yes, with external scripting.

> Does TC support IPv6? 
Yes (I think)

> Secondly, BWM Tools seems to queue traffic to userspace and use some
> kind of kernel module to allow it through or not. How efficient is
> bandwidth control using ip queing to userspace? BWM Tools doesn't seem
> to support IPv6  :(
I don't know how BWM works.


Stef
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