nanog mailing list archives

Re: v6 gluelessness


From: Simon Leinen <simon.leinen () switch ch>
Date: Tue, 22 Jan 2008 15:35:18 +0100


Iljitsch van Beijnum writes:
Going back to operational issue (yes, incredible as it may seems, I
won't write here what I think of ICANN), there is a *technical*
solution to this issue, which is the one deployed by the
RIPE-NCC. Give a different *name* (and may be a different *IP
address*) to every ccTLD.

This is suboptimal because it limits the opportunity for nameservers
to measure RTTs and contact the fastest server.

Only if these nameservers do the Bad Thing and track responsiveness by
server name rather than by server address.

(I think a well-known DNS implementation does or used to do it this
Bad way, which was part of the reason that it sometimes locked on to a
server with an unreachable IPv6 address and a fast-responding IPv4
address - and of course it would always try the IPv6 address first )-:
-- 
Simon.


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