On Monday 08 September 2003 21:02, Jay Wineinger wrote: > Hey guys, > Im going to be setting up a qos system for the college I attend and I > had some questions. First, the box will be a transparent bridge and I > would like to prioritize traffic (3 class/types only, [interactive, > web+mail+etc, bulk]) and also limit single ips to specified up/down speeds. > I want to use HTB. > 1) the network here will have about 500-600 computers on the network, > with 400 active at any one time. Any ideas on what kind of hardware will > be needed to accomodate this? They have given me a P-II 350 with 256Mb of > RAM and 2 realtek based 10/100 NICs. Should this be enough? It depends on the number of active classes you will have. > 2) What would be the most efficient way (qdisc/class structure) to > accomplish this? The school's main link is approx 6mbit, yet if I split > that among the anticipated active computers, that would average about > 15kbit per computer, which is terrible. So, that means if I want to allot > any useful amount of bandwidth to all of the computers, my total alloted > bandwidth would be greater than the link. Am I correct in my reasoning > here? If so, what would all of you experienced shapers recommend for my > setup? (tree diagrams, descriptions would be great) You can try to implement the wrr qdisc. This qdisc creates a class for each mac address (or ip address) and classify's the traffic. It can "punish" big downloaders by limiting the bandwidth. http://wipl-wrr.sourceforge.net/ > 3) iptables marking will not work over the bridge (correct?) so I need > to learn to use u32 filter classifiers. Are there any in depth howto's, > etc out there? Im looking at the LARTC page on it and Im still pretty > confused. You can use iptables on a bridge but you need some extra patches. See the faq page on docum.org. > 4) Anything else I should remember/consider? Don't forget to monitor the link so you can check the setup. Stef -- stef.coene@xxxxxxxxx "Using Linux as bandwidth manager" http://www.docum.org/ #lartc @ irc.oftc.net _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
