[61368] in North American Network Operators' Group

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Re: GLBX ICMP rate limiting (was RE: Tier-1 without their own

daemon@ATHENA.MIT.EDU (Christopher L. Morrow)
Thu Aug 28 11:56:09 2003

Date: Thu, 28 Aug 2003 15:55:26 +0000 (GMT)
From: "Christopher L. Morrow" <chris@UU.NET>
To: "Wayne E. Bouchard" <web@typo.org>
Cc: Jared Mauch <jared@puck.Nether.net>, variable@ednet.co.uk,
	"nanog@merit.edu" <nanog@merit.edu>
In-Reply-To: <20030828145105.GA19991@typo.org>
Errors-To: owner-nanog-outgoing@merit.edu


On Thu, 28 Aug 2003, Wayne E. Bouchard wrote:

>
> While rate limiting ICMP can be a good thing, it has to be done
> carefully and probably can't be uniform across the backbone. (think of
> a common site that gets pinged whenever someone wants to test to see
> if their connection went down or if it's just loaded.. Limit ICMP into
> them impropperly and lots of folks notice.) Such limiting also has to
> undergo periodic tuning as traffic levels increase, traffic patterns
> shift, and so forth.

Along these lines, how does this limiting affect akamai or other 'ping for
distance' type localization services? I'd think their data would get
somewhat skewed, right?

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