nanog mailing list archives
Re: anycast roots
From: Joe Abley <jabley () isc org>
Date: Wed, 17 Nov 2004 10:05:20 -0500
On 17 Nov 2004, at 08:37, Elmar K. Bins wrote:
in alternating fashion, but I would assume "jns1" through "jns6" are just the individual servers of a setup called "hgtld".
I have no idea about Verisign's scheme, but in case anybody notices similar distribution of queries across F root servers, it may help to know that:
xxxNa.f.root-servers.org xxxNb.f.root-servers.org xxxNc.f.root-servers.org etcare hosts all located at the same site "xxxN". Service is distributed between those hosts at that site in the manner of:
http://www.isc.org/pubs/tn/isc-tn-2004-1.html Service is distributed between sites in the manner of: http://www.isc.org/pubs/tn/isc-tn-2003-1.htmlI would expect people to see high affinity to a particular site for a particular client, and much lower affinity between individual hosts within a site (but still plenty to allow DNS over TCP to function properly). It will be interesting to see Randy's results.
Today (2004-11-17) the only global nodes are SFO2 and PAO1; all the rest are local nodes (where "global" and "local" are described at <http://www.isc.org/pubs/tn/isc-tn-2003-1.html#anchor2>). Both global nodes live in the same AS.
Joe
Current thread:
- Re: anycast roots, (continued)
- Re: anycast roots Randy Bush (Nov 12)
- Re: anycast roots Andrei Robachevsky (Nov 12)
- Re: anycast roots Paul Vixie (Nov 12)
- Re: anycast roots bmanning (Nov 12)
- Re: anycast roots Paul Vixie (Nov 13)
- Re: anycast roots William Allen Simpson (Nov 14)
- Re: anycast roots Hank Nussbacher (Nov 13)
- Re: anycast roots Stephane Bortzmeyer (Nov 17)
- Re: anycast roots Elmar K. Bins (Nov 17)
- Re: anycast roots Stephane Bortzmeyer (Nov 17)
- Re: anycast roots Joe Abley (Nov 17)
- Re: anycast roots Stephane Bortzmeyer (Nov 17)
- Re: anycast roots Matt Larson (Nov 17)
- Re: anycast roots Paul Vixie (Nov 17)
- Re: anycast roots Randy Bush (Nov 12)