Hello all;
I have a testbed with one P-CSCF and one S-CSCF and an app server; anytime
I exceeds 500 message per second, I start getting retransmission on
packets. I used a cori3 for P and S, there was no problem, but now I have
a pentium 3.
The send_message scenario is like that:
?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE scenario SYSTEM "sipp.dtd">
<scenario name="sned message">
<send retrans="500" start_rtd="1">
<![CDATA[
MESSAGE sip:[field1] SIP/2.0
Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
From: sipp <sip:sipp@
[local_ip]:[local_port]>;tag=[pid]SIPpTag00[call_number]
To: sut <sip:[field1]>
Call-ID: [call_id]
CSeq: 1 MESSAGE
Contact: sip:sipp@[local_ip]:[local_port]
Max-Forwards: 70
Subject: Performance Test
Content-Type: text/plain
Content-Length: [len]
iot command
]]>
</send>
<recv response="200" rtd="1">
</recv>
<!-- definition of the response time repartition table (unit is ms) -->
<!--ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/ -->
<!-- definition of the call length repartition table (unit is ms) -->
<!-- CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/
-->
</scenario>
I really need help on this, I don't know why I get retransmission.
Any help would be appreciated.
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