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<p class="MsoNormal"><span style="color:blue">Hi team,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">We are trying to run load test on OpenSIPS for our project.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">We are using sipp tool to generate load test. We are facing some issues when we try to run a successful call.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Source SIPp ----------Opensips --------------->Dest SIPp<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">There are two scenarios.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:blue"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:blue">(Works) Failure code, send Invite from source SIPp and receive 480 .<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="color:blue"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:blue">(Fails) Answering call, Send Invite from source SIPp and receive 200 OK.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">In first case, after receiving 480, OpenSIPS could able to send ACK to the destination SIPp<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Where as in second case, there are two issues<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.5in;mso-text-indent-alt:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="color:blue"><span style="mso-list:Ignore"><span style="font:7.0pt "Times New Roman"">
</span>i.<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span style="color:blue">After receiving 200 OK, OpenSIPS doesn’t send ACK to destination SIPp. When it tries to send ACK out, it fails stating, usd_send_failed.
Or <o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.5in;mso-text-indent-alt:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="color:blue"><span style="mso-list:Ignore"><span style="font:7.0pt "Times New Roman"">
</span>ii.<span style="font:7.0pt "Times New Roman""> </span></span></span><![endif]><span style="color:blue">Also the same ACK keeps looping somehow for huge number of times.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">For the 2<sup>nd</sup> case, we are running only single call and it is failing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Am attaching the log of SIPp messages and some snippet of OpenSIPS logs.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Have you come across this scenario? Why ACK is been looped so many times?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Also we see ACK message is so small, but it says, usd_send is failed due to message is long.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Any clue here would help us a lot.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Agalya<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.25in"> <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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