[LARTC] bandwidth control question.

[LARTC] bandwidth control question.

[Jon Lawrence]

Hi,
I'm looking for a way to limit bandwidth to/from clients using a
contended 2Mb link. What I'm looking for is to allow a client machine to
use the full 2Mb but only if there is no traffic to/from other clients.
I've been looking at htb.init and cbq.init, and believe that the BURST
used in htb.init will allow what I need.

I'm looking to put in place something like:
			------------------
			|   Router	 |
			------------------
				|
			------------------
			|    Bridge	 |
			------------------
				|
			------------------
			|    Switch	 |
			------------------
				|
			 Various servers

Am I right in thinking that I'll be able to use tc within the bridge ?

Regards,
Jon

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Re: [LARTC] bandwidth control question.

[Martin A. Brown]

Yes,

You can use tc on a bridge.  See also this thread:

  http://mailman.ds9a.nl/pipermail/lartc/2003q1/007378.html

If you are just going to perform traffic control, and you don't need to
use iptables, you don't need the bridge+nf functionality.

Add your filters to the "real" devices, not br0.

-Martin

 : I'm looking for a way to limit bandwidth to/from clients using a
 : contended 2Mb link. What I'm looking for is to allow a client machine to
 : use the full 2Mb but only if there is no traffic to/from other clients.
 : I've been looking at htb.init and cbq.init, and believe that the BURST
 : used in htb.init will allow what I need.
 :
 : I'm looking to put in place something like:
 : 			------------------
 : 			|   Router	 |
 : 			------------------
 : 				|
 : 			------------------
 : 			|    Bridge	 |
 : 			------------------
 : 				|
 : 			------------------
 : 			|    Switch	 |
 : 			------------------
 : 				|
 : 			 Various servers
 :
 : Am I right in thinking that I'll be able to use tc within the bridge ?
 :
 : Regards,
 : Jon
 :
 : _______________________________________________
 : LARTC mailing list / LARTC@mailman.ds9a.nl
 : http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
 :

-- 
Martin A. Brown --- SecurePipe, Inc. --- mabrown@securepipe.com

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Re: [LARTC] bandwidth control question.

[Stef Coene]

On Monday 10 March 2003 15:48, Jon Lawrence wrote:
> Hi,
> I'm looking for a way to limit bandwidth to/from clients using a
> contended 2Mb link. What I'm looking for is to allow a client machine to
> use the full 2Mb but only if there is no traffic to/from other clients.
> I've been looking at htb.init and cbq.init, and believe that the BURST
> used in htb.init will allow what I need.
The burst is not what you need.  
You have to create 2 htb classes.  One for your limited client and one for the 
other clients.  You can give the limit client 10% and the other clients 90% 
bandwidth.  They both can use up to 100% if there is bandwidth left.  So the 
other clients are always sure they can use 90% of your link.

Stef

-- 

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

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