<h2 style="margin-bottom:0in;margin-bottom:.0001pt"><span style="font-family:
&quot;Arial&quot;,&quot;sans-serif&quot;;mso-fareast-font-family:&quot;Times New Roman&quot;">Release of
Interisle and TNO reports on Root Scaling</span></h2>

<p style="margin-top:11.25pt;margin-right:0in;margin-bottom:0in;margin-left:
0in;margin-bottom:.0001pt"><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">18
September 2009</span></p>

<p><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">In February 2009, with
Resolution 2009-02-03-04, the ICANN Board requested the Root Server System
Advisory Committee (RSSAC), the Security and Stability Advisory Committee
(SSAC), and the ICANN staff, including the IANA team, to study the potential
issues regarding the addition of IDNs, IPv6 addresses, DNSSEC and substantial
numbers of new TLDs to the root zone. The Terms of Reference for this study are
at <a href="http://www.icann.org/en/committees/dns-root/root-scaling-study-tor-05may09-en.htm">http://www.icann.org/en/committees/dns-root/root-scaling-study-tor-05may09-en.htm</a>.</span></p>

<p><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">Interisle was selected to
perform this study. In the course of their study, they recommended that a
modeling effort be undertaken with the assistance of TNO. TNO produced a model
and a companion report.</span></p>

<p><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">We are hereby releasing the
Interisle report as delivered for public comment and analysis as well as a covering
note from the joint RSSAC/SSAC/ICANN staff steering group for this study.</span></p>

<p><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">The steering group will be
evaluating the report against the Terms of Reference and preparing
recommendations for the Board and the public.</span></p>

<p><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">The TNO model and simulation
system is undergoing verification and will be released, with the TNO report,
soon. </span></p>

<p><strong><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">Related links:</span></strong><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;"></span></p>

<p><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">Root Scaling Study <br>
<a href="http://www.icann.org/en/committees/dns-root/root-scaling-study-report-31aug09-en.pdf">http://www.icann.org/en/committees/dns-root/root-scaling-study-report-31aug09-en.pdf</a>
[PDF, 1,340K] </span></p>

<p><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">Steering Group transmittal
letter <br>
<a href="http://www.icann.org/en/committees/dns-root/steering-group-transmittal-letter-18sep09-en.pdf">http://www.icann.org/en/committees/dns-root/steering-group-transmittal-letter-18sep09-en.pdf</a>
[PDF, 41K] </span></p>

<p><strong><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">The Root Scaling
Study Steering Group </span></strong><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;"></span></p>

<p><span style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">David Conrad (<a href="mailto:david.conrad@icann.org">david.conrad@icann.org</a>) - ICANN <br>
John L. Crain (<a href="mailto:john.crain@icann.org">john.crain@icann.org</a>)
- ICANN <br>
Steve Crocker (<a href="mailto:steve@shinkuro.com">steve@shinkuro.com</a>) -
SSAC <br>
Jeremy Hitchcock (<a href="mailto:jeremy@dyn-inc.com">jeremy@dyn-inc.com</a>) -
SSAC <br>
Johan Ihrén (<a href="mailto:johani@autonomica.se">johani@autonomica.se</a>) -
RSSAC <br>
Matt Larson (<a href="mailto:mlarson@verisign.com">mlarson@verisign.com</a>) -
RSSAC <br>
Danny McPherson (<a href="mailto:danny@tcb.net">danny@tcb.net</a>) - SSAC <br>
Ram Mohan (<a href="mailto:rmohan@afilias.info">rmohan@afilias.info</a>) - SSAC
<br>
Greg Rattray (<a href="mailto:greg.rattray@icann.org">greg.rattray@icann.org</a>)
- ICANN <br>
Barbara Roseman (<a href="mailto:barbara.roseman@icann.org">barbara.roseman@icann.org</a>)
- ICANN <br>
Suzanne Woolf (<a href="mailto:Suzanne_Woolf@isc.org">Suzanne_Woolf@isc.org</a>)
- RSSAC </span></p>

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