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Hi,<br><br>I am performing SIP to SIP performance testing using Kamailio proxy (UAC-Kamailio-UAC). After increasing the load to 300 calls/sec Kamailio begins dropping UDP packets. (250 cps works fine). CPU utilization and network bandwidth looks fine. I think the bottleneck is the Linux UDP buffer size of the proxy server. Here is the proxy server information:<br><br>$ uname -a<br>Linux lab-linux01 2.6.24-19-server #1 SMP Wed Jun 18 14:44:47 UTC 2008 x86_64 GNU/Linux<br><br>$ sudo sysctl -a | grep net.core.rmem_max<br>net.core.rmem_max = 131071<br><br><br>The question is if I increase the linux UDP buffer size do I need to change any configuartion parameter (like <span>MAX_RECV_BUFFER_SIZE) in Kamailio?<br><br>Thanks,<br>Alex R<br></span><br><br /><hr />Windows Live™: Keep your life in sync. <a href='http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_allup_howitworks_022009' target='_new'>See how it works.</a></body>
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