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<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Hi, all,</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Recently, I tested the performance of BIND,NSD and UNBOUND. However, I am confused with the testing results. I list them here for your help.</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><o:p><FONT face="Calibri"> </FONT></o:p></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 5.25pt; TEXT-INDENT: -5.25pt; mso-char-indent-count: -.5"><SPAN lang="EN-US"><FONT face="Calibri">Client executes the DNS query using ‘queryperf’ under the following four scenarios (where SA and TA denote the Second level </FONT></SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Authority server and </SPAN><SPAN lang="EN-US"><FONT face="Calibri">Top level </FONT></SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Authority server respectively</SPAN><SPAN lang="EN-US"><FONT face="Calibri">)</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">,</SPAN><SPAN lang="EN-US"><FONT face="Calibri">their QPS results are</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Case1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Recursive </SPAN><SPAN lang="EN-US"><FONT face="Calibri">(bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri">Root(bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri">TA<B style="mso-bidi-font-weight: normal">(bind)</B></FONT></SPAN><B style="mso-bidi-font-weight: normal"><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri">SA(bind)<o:p></o:p></FONT></SPAN></B></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">153.521955 qps</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Case2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Recursive</SPAN><SPAN lang="EN-US"><FONT face="Calibri"> (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> Root (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> TA<B style="mso-bidi-font-weight: normal"> (bind)</B></FONT></SPAN><B style="mso-bidi-font-weight: normal"><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> SA (nsd)</FONT></SPAN></B></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">173.912569 qps</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Case3</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Recursive</SPAN><SPAN lang="EN-US"><FONT face="Calibri"> (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> Root (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> TA<B style="mso-bidi-font-weight: normal"> (nsd)</B></FONT></SPAN><B style="mso-bidi-font-weight: normal"><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> SA (bind)</FONT></SPAN></B></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">1857.768915 qps</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Case4</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Recursive</SPAN><SPAN lang="EN-US"><FONT face="Calibri"> (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> Root (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> TA<B style="mso-bidi-font-weight: normal"> (nsd)</B></FONT></SPAN><B style="mso-bidi-font-weight: normal"><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> SA (nsd)</FONT></SPAN></B></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">1923.845425 qps</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 5.25pt; TEXT-INDENT: -5.25pt; mso-char-indent-count: -.5"><SPAN lang="EN-US"><FONT face="Calibri">The number of queries is 50000, and with A, AAAA and MX types randomly. In the zone file, TTL is set to 0, and then every query should be performed from root to the SA without the assistance of cache</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">。</SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">As you find, only when the NSD is deployed on the TA, the performance (e.g., QPS) can be promoted significantly. In other words, even when the SA uses the NSD, the QPS is just similar with the case when all the servers use BIND.</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><o:p><FONT face="Calibri"> </FONT></o:p></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">This same results appear when the recursive server uses UNBOUND. And the corresponding results is listed as following:</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Case1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Recursive</SPAN><SPAN lang="EN-US"><FONT face="Calibri"> (unbound)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> Root (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> TA<B style="mso-bidi-font-weight: normal"> (bind)</B></FONT></SPAN><B style="mso-bidi-font-weight: normal"><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> SA (bind)<o:p></o:p></FONT></SPAN></B></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">254.047935 qps</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Case2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Recursive</SPAN><SPAN lang="EN-US"><FONT face="Calibri"> (unbound)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> Root (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> TA<B style="mso-bidi-font-weight: normal"> (bind)</B></FONT></SPAN><B style="mso-bidi-font-weight: normal"><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> SA (nsd)</FONT></SPAN></B></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">293.855172 qps</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Case3</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Recursive</SPAN><SPAN lang="EN-US"><FONT face="Calibri"> (unbound)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> Root (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> TA<B style="mso-bidi-font-weight: normal"> (nsd)</B></FONT></SPAN><B style="mso-bidi-font-weight: normal"><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> SA (bind)</FONT></SPAN></B></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">14968.491326 qps</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Case4</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin">:</SPAN><SPAN lang="EN-US" style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial','sans-serif'">Recursive</SPAN><SPAN lang="EN-US"><FONT face="Calibri"> (unbound)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> Root (bind)</FONT></SPAN><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> TA<B style="mso-bidi-font-weight: normal"> (nsd)</B></FONT></SPAN><B style="mso-bidi-font-weight: normal"><SPAN lang="EN-US" style="FONT-FAMILY: Wingdings; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">à</SPAN></SPAN><SPAN lang="EN-US"><FONT face="Calibri"> SA (nsd)</FONT></SPAN></B></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">15071.630940 qps</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><o:p><FONT face="Calibri"> </FONT></o:p></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Thank you very much for your attention!</FONT></SPAN></P>
<P class="MsoNormal" style="MARGIN: 0cm 0cm 0pt"><SPAN lang="EN-US"><FONT face="Calibri">Zhiwei Yan</FONT></SPAN></P></DIV></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>