<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta name=Title content=""><meta name=Keywords content=""><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Courier New";
panose-1:2 7 3 9 2 2 5 2 4 4;}
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:0 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:DengXian;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:Calibri;
color:windowtext;}
span.msoIns
{mso-style-type:export-only;
mso-style-name:"";
text-decoration:underline;
color:teal;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1701277300;
mso-list-template-ids:1553748080;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:"Courier New";
mso-bidi-font-family:"Times New Roman";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Wingdings;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri'>Dear RSSAC Caucus, <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri'> This is a reminder to submit your review of this document by </span><span style='font-size:10.5pt;font-family:Calibri;color:black'>close of business <i>27 May 2016. </i></span><span style='font-size:11.0pt;font-family:Calibri'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri'>Best<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri'>Steve<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-family:Calibri;color:black'>From: </span></b><span style='font-family:Calibri;color:black'><rssac-caucus-bounces@icann.org> on behalf of Steve Sheng <steve.sheng@icann.org><br><b>Date: </b>Wednesday, May 11, 2016 at 2:59 AM<br><b>To: </b>"rssac-caucus@icann.org" <rssac-caucus@icann.org><br><b>Subject: </b>[rssac-caucus] FOR REVIEW: Version 3 of RSSAC002 - Measurements of Root Server System<o:p></o:p></span></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'>Dear RSSAC Caucus, <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'> On behalf of the work party to revise RSSAC002, attached please find v3 of RSSAC002 – Measurements of the Root Server System. <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'> The work party was created by RSSAC on 4 February 2016 with the following scope of work: <a href="https://www.icann.org/en/system/files/files/rssac-002-scope-04feb16-en.pdf">https://www.icann.org/en/system/files/files/rssac-002-scope-04feb16-en.pdf</a>. <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'> The work party met every other week for the last three months and revised RSSAC002. The major changes are: <o:p></o:p></span></p></div><div><ul type=disc><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>Added section 2 "Scope of Measurements" and tried to improve scope and rationales throughout the document.<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>'load-time' is now defined as a strict 95th percentile.<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>although 'load-time' is reported as seconds, we note that it should not be assumed to have such accuracy.<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>for 'zone-size' metric, now only the Root Zone Maintainer should report this.<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>clarified definitions of responses in traffic-volume metric<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>for traffic-volume, included some discussion on why queries and responses might differ<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>clarified definition of RCODE measurements. In particular it is only for responses sent FROM the root server (not TO the server).<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>for 'num-sources' only count messages sent TO the server.<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>in section 4 rewrote the paragraph stating that TCP reassembly is non-trivial and therefore including data from DNS-over-TCP is optional.<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>removed 'end-period' from YAML. All measurements cover a 24 hour period and the start time is sufficient.<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>Added a version keyword to YAML files.<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>Described a YAML format that allows operators to publish custom metrics<o:p></o:p></span></li><li class=MsoNormal style='color:black;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1'><span style='font-size:10.5pt;font-family:Calibri'>Updated examples to be real operator statistics <o:p></o:p></span></li></ul><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'> The work party invites you to review this document and provide your feedback by close of business <i>27 May 2016. </i><o:p></o:p></span></p></div></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'> Feedbacks should be sent to the caucus list directly. <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'>Best<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'>Steve<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:Calibri;color:black'><o:p> </o:p></span></p></div></div></div></div></body></html>