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Re: Question regarding anycasting in CDN setup


From: Anurag Bhatia <me () anuragbhatia com>
Date: Thu, 23 Feb 2012 13:35:21 +0530

Great explanation .

Thanks everyone

(Sent from my mobile device)

Anurag Bhatia
http://anuragbhatia.com
On Feb 9, 2012 1:37 AM, "Joe Provo" <nanog-post () rsuc gweep net> wrote:

On Thu, Feb 09, 2012 at 01:28:07AM +0530, Anurag Bhatia wrote:
[snip]
I have never did such setup, but I assume it works as you say. I wonder
how
it finds a US based system from IP quickly (since it's DNS server)?


Drop "ip geolocation" or "internet geolocation" into Your Favorite
Search Engine. Short answer is some folks just refer to databases
published/generated by others, some folks use DNS guesses, and some
folks measure packet arrival. And most often, there is a combination
of methods used.

--
        RSUC / GweepNet / Spunk / FnB / Usenix / SAGE / NewNOG




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