Hi,
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:
$ uname -a
Linux lab-linux01 2.6.24-19-server #1 SMP Wed Jun 18 14:44:47 UTC 2008 x86_64
GNU/Linux
$ sudo sysctl -a | grep net.core.rmem_max
net.core.rmem_max = 131071
The question is if I increase the linux UDP buffer size do I need to change any
configuartion parameter (like MAX_RECV_BUFFER_SIZE) in Kamailio?
Thanks,
Alex R
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