On Fri, 9 Feb 2007, william(at)elan.net wrote:
Isn't it better to have several roots anycast and connect at every
large enough traffic exchange points (IX) so as to connect to everyone
locally that way?
How useful that approach is probably depends a lot on how the DNS
resolvers' algorithms select DNS root servers. If they are able to
pick the one(s) with fastest response times, yes.
As Bert mentioned in the next message, the risk of outdated (and
therefor out-of-sync) roots is real. Distributing the copies too far
would create a similar situation as already happens when new IP
address blocks are taken to use, and other networks still filter them
as "bogons". Experience with bogons has shown that there are always
people who _don't_ update lists such as these yet still use them, and
in the process degrade their users' service.
--
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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