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To: dnsop@cafax.se
From: "D. J. Bernstein" <djb@cr.yp.to>
Date: 4 Jul 2003 15:14:38 -0000
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Sender: owner-dnsop@cafax.se
Subject: Re: I-D ACTION:draft-ietf-dnsop-respsize-00.txt

Rob Austein writes:
> This has been suggested before, and it's an appealing idea, but it
> assumes that resolvers will try every address of every listed server.

No. No widely deployed program tries _every_ address; there are always
limits. But if you try the 4x4 strategy (which still has quite a bit of
room in the UDP packet) then you'll see that the load is spread quite
evenly across 16 servers. The other strategy can't do better than 13.

---D. J. Bernstein, Associate Professor, Department of Mathematics,
Statistics, and Computer Science, University of Illinois at Chicago
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