DNS Anycast as traffic optimizer?
Bill Woodcock
woody at pch.net
Wed Sep 1 18:05:59 UTC 2004
On Wed, 1 Sep 2004, Steve Francis wrote:
> I'm sure there is research out there...
Why? :-)
> ...how good/bad using DNS anycast is as a kludgey traffic optimiser?
I'd hardly call it a kludge. It's been standard best-practice for over a
decade.
> THe question is, what is that "some" relationship? 80% as good as
> Akamai? Terrible?
Should be much higher than Akamai, since that's not what they're
optimizing for. If you want nearest server, anycast will give you that
essentially 100% of the time. Akamai tries to get queries to servers that
have enough available capacity to handle the load. Since they're handling
bursty, high-bandwidth applications, rather than DNS.
-Bill
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