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<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN><A NAME=""><SPAN LANG="en-us"></SPAN></A><SPAN LANG="en-us"></SPAN><A NAME=""><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">Hi everyone, I try to set up an authentic bind server in the loopback address(127.0.0.1) in our recursive server of</FONT></SPAN></A><SPAN LANG="en-us"> </SPAN><A NAME=""><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></A><SPAN LANG="en-us"></SPAN><A NAME=""><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">our</FONT></SPAN></A><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">testbed for test reason. When I send a large number of junk queries(5000QPS), the srrt of loopback server in cash is unexpectedly large. Does anyone know the reason?</FONT><FONT FACE="Calibri"> The srrt is normal when I dig or ping the loopback server by the way.</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT FACE="Calibri">Here is</FONT> <FONT FACE="Calibri">t</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">he dump_cache.db</FONT><FONT FACE="Calibri">’</FONT><FONT FACE="Calibri">s content:</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; Address database dump</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">;</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 10.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::13 [srtt 212] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 8.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240</FONT><FONT SIZE=2 FACE="Calibri">c:f:1:122::11 [srtt 744] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 3.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::6 [srtt 171] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 9.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 s</FONT><FONT SIZE=2 FACE="Calibri">uccess]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::12 [srtt 44] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 4.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::7 [srtt 64] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 13.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nx</FONT><FONT SIZE=2 FACE="Calibri">rrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::16 [srtt 26] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 5.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::8 [srtt 29] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 12.root-servers.net [v4 TTL 10744] [v6 TTL 8</FONT><FONT SIZE=2 FACE="Calibri">6344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::15 [srtt 2054] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 6.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::9 [srtt 663] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 1.root-servers.net [v4 TTL 10</FONT><FONT SIZE=2 FACE="Calibri">744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::2 [srtt 550] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 11.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::14 [srtt 44] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 7.root-servers.n</FONT><FONT SIZE=2 FACE="Calibri">et [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::10 [srtt 918] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 2.root-servers.net [v4 TTL 10744] [v6 TTL 86344] [v4 nxrrset] [v6 success]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; 240c:f:1:122::5 [srtt 360] [flags 00002000] [ttl 1746]</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; Unassociated entries</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">;</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">; ::1 [srtt 689] [flags 00002000] [ttl 1745]</FONT></SPAN></P>
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<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">Best Regards</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"><FONT SIZE=2 FACE="Calibri">Runxia Wan</FONT></SPAN></P>
<P DIR=LTR ALIGN=JUSTIFY><SPAN LANG="en-us"></SPAN></P>
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