nanog mailing list archives

Re: DNS anycast considered harmful (was: .ORG problems this evening)


From: "Stephen J. Wilcox" <steve () telecomplete co uk>
Date: Thu, 18 Sep 2003 13:07:23 +0000 (GMT)


: > There's an easy fix to that particular situation:  Make the first (or first
: > two) listed servers anycast, and the rest unicast.
:
: It would require a central management (or at least a central
: oversight) of the root name servers and I do not believe there is one:
: each root name server anycasts at will, without a leader saying ("A
: and B will anycast, the others will stay unicast").

Well, that's something for the root server operators to think about and
discuss amongst themselves.  I know several of them are reading this list,
and may be reading this thread.  8-)

Plus, A is verisign so any hopes of cluefulness or working for the community are 
fading fast!

Still doesn't help .ORG, which is 100% anycast and thus has no DNS-based
redundancy (see my experience elsewhere in this thread).

It does - there are two! Yuo just mean less than 13 as per the root.

What is the maximum number you can fit in a single NS reply for a 3 letter tld 
such as .com/.org ? (Is it still 13? I'm not familiar with the DNS protocol at 
that level)

Steve



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