[111141] in North American Network Operators' Group
Re: Shaping on a large scale
daemon@ATHENA.MIT.EDU (bert hubert)
Fri Jan 30 12:56:40 2009
Date: Fri, 30 Jan 2009 18:56:39 +0100
From: bert hubert <bert.hubert@netherlabs.nl>
To: Scott Berkman <scott.berkman@reignmaker.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
On Fri, Jan 30, 2009 at 10:25:49AM -0500, Scott Berkman wrote:
> http://lartc.org/. Also I'm not sure if someone has built this into any
> of the firewall specific linux distros yet, so you may want to explore
> those a little.
They have. Many Linux appliances come with a 'Linux Wonder Shaper'
http://lartc.org/wondershaper/ or an equivalent.
In general, the Linux packet shaping infrastructure is overly powerful, if
very weakly documented - despite the LARTC efforts.
I do have to add that shaping is rarely an exact science, and that achieving
very high accuracies may prove impossible on general (timer interrupt based)
hardware & operating systems.
Stochastic results will be good however.
Bert
--
http://www.PowerDNS.com Open source, database driven DNS Software
http://netherlabs.nl Open and Closed source services
