[90353] in North American Network Operators' Group
Re: How to tell if something is anycasted?
daemon@ATHENA.MIT.EDU (Martin Hannigan)
Wed May 17 11:12:25 2006
Date: Wed, 17 May 2006 11:11:47 -0400
To: bmanning@vacation.karoshi.com
From: Martin Hannigan <hannigan@renesys.com>
Cc: nanog@merit.edu
In-Reply-To: <20060517144541.GB11649@vacation.karoshi.com.>
Errors-To: owner-nanog@merit.edu
At 10:45 AM 5/17/2006, bmanning@vacation.karoshi.com wrote:
>well Peter, ONE root server operator has that practice. Others
>have different practices regarding anycast.
>
>--bill
And there are many, with many TLD's.
(rough counts)
provider/tld's
UDNS 48
ISC 19
PCH 8
PSG 23
ICANN 4
UUNET 61
RIPE 87
DEC 10
NIC.FR 71
Note: There is cross servicing of TLDs counted above.
Some numbers may seem low since there seems to be some bit of
obfuscation. Or perhaps not and I just haven't confirmed.
Some are anycasted, some appear to be physical separations, and some
appear to be nested and anycasted i.e. multiple names for the same domain
anycasted.
I think naming is a bad choice because it's costly to the users and opens
the root up to custom configuration by customers which I think is bad.
Tagging the route with a community containing the ISO corresponding country
could be interesting for location purposes, but of course, that's already
been thought of. :)
-M<
--
Martin Hannigan (c) 617-388-2663
Renesys Corporation (w) 617-395-8574
Member of Technical Staff Network Operations
hannigan@renesys.com
