[80015] in North American Network Operators' Group
Re: Slashdot: Providers Ignoring DNS TTL?
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Wed Apr 20 15:34:57 2005
To: Dean Anderson <dean@av8.com>
Cc: sthaug@nethelp.no, nanog@merit.edu
In-Reply-To: Your message of "Wed, 20 Apr 2005 14:00:00 EDT."
<Pine.LNX.4.44.0504201346040.4574-100000@localhost.localdomain>
From: Valdis.Kletnieks@vt.edu
Date: Wed, 20 Apr 2005 15:30:45 -0400
Errors-To: owner-nanog@merit.edu
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On Wed, 20 Apr 2005 14:00:00 EDT, Dean Anderson said:
> On Wed, 20 Apr 2005 sthaug@nethelp.no wrote:
> > Where do you see any connection between anycast and ignoring DNS TTL?
> The data he showed isn't necessarilly "ignoring ttl". If there are
> multiple anycasted caching servers behind a specific IP address, then
> those several cache's will each have a different state. Since, [as I
> explained, and was supposed by the poster], there is "some kind of load
> balancing going on", and also since implementors of anycast caches have
> posted questions and explained their purposes [which could be seen as
> "load balancing"], this is a likely explanation. It may not be the only
> explanation: e.g. they could be restarting their nameservers every thirty
> seconds. But "anycast loadbalancing" of a caching server is probably the
> most likely.
All fine and good. But nowhere in your long paragraph do you actually
address Steinar's question, which is "What does this rant have to do with
*ignoring* *DNS* *TTL*?"
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