restrict bandwidth usage

[redhat at buglecreek.com]

On Tue, 26 Jul 2005 18:37:33 -0700, "Opesh Alkara"
<opeshalkara at gmail.com> said:
> Dear All,
>  (OS : Red Hat Linux ES 3.0) 
>  Just wanted to know how can I restrict the banwidth usage by ethernet 
> interface of a particular/mulitple Linux machine in my internal LAN.
>  I want to limit my Linux systems to use only 75 % of the available
>  machine 
> for any type of trafic. To be more specific at any time these systems
> should 
> not cross the 75% of my LAN bandwidth. These machines are mass mailing 
> servers and hence use up all the available LAN bandwith to transfer mails
> to 
> a central HUB mailserver which eventually delivers all the mails. Since
> they 
> use all the available bandwidth leaving no room for admins to login and 
> monitor I wnt them to restrict to 75% of LAN bandwidth. Hope I have made
> my 
> point clear
>  Waiting for replies.
>  Thanks for reading the mail. 
> 
> -- 
> Regards
> Opesh Alkara
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Take a look at this http://www.szabilinux.hu/bandwidth/. Using iptables
to mark packets for tc may do what you need.