To:
Robert Elz <kre@munnari.OZ.AU>
Cc:
hardie@equinix.com, dnsop@cafax.se, aroot@ops.ietf.org
From:
Mark.Andrews@nominum.com
Date:
Fri, 03 Nov 2000 08:50:24 +1100
In-reply-to:
Your message of "Thu, 02 Nov 2000 22:09:16 +0700." <560.973177756@brandenburg.cs.mu.OZ.AU>
Sender:
owner-dnsop@cafax.se
Subject:
Re: Anycast root metrics and analysis
As the one who tuned BIND's RTT break points I agree with kre that it just needs to be better not best. BIND's algorithm sets the first break point at 32 ms, then goes up in steps of 64 ms. The primary purpose was to keep traffic within the continent, or closest continent in my case. Secondary to that it was to keep traffic in the local area of the continent. The real problem, which exists today, is to ensure that the infrastructure is capable to taking the traffic load without large queuing delays and without large packet losses. The root server operators can easily measure the losses at the server (if any). It's much harder for them to see the losses in the network servicing the root servers. Mark -- Mark Andrews, Nominum Inc. 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews@nominum.com