From: Adrian Wooster (adrian.wooster at domain iolfree.ie)
Date: Wed 11 Sep 2002 - 12:35:05 IST
You can do some "throttling" of incoming traffic using the tc ingress
qdisc - if you drop packets arriving too quickly from a particular port (ie
SMTP), the idea is the sending machine should slowly respond with a slower
rate. Not perfect but better than nothing.
It needs a fairly new version of tc but seems to work okay.
From: Matthew French [mailto:mfrench42 at domain yahoo.co.uk]
Sent: 10 September 2002 17:40
To: sean_odonnell at domain dsnsports.com; ilug at domain linux.ie
Subject: Re: [ILUG] SMTP bandwidth throttling
Sean O'Donnell asked:
> Thats the problem,
> The 10mb messages have to be sent out, it's not a case of
> banning them, just letting them out into the world
> in a civilised manner (as opposed to like a herd of stampeding
> buffalo :)
Traffic shaping How-To:
Have not used it myself, but has all the ingredients you need. Most
important is that you have control over outgoing traffic.
Unfortunately traffic shaping does not work too well on incoming traffic
(big downloads, etc.) - your upstream ISP will need to handle that. But for
big outgoing mails it should work very nicely.
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