Daniel, We are testing kamailio in "edge proxy". Kamailio routes traffic in between SIPP clients and SIP registrar. Here is a link to my test network layout. http://luminepixels.com/tmp/kamailio_load_testing.jpg We did not see many retransmissions with Registration load running alone. With Call load and registration together, only registration requests are being retransmitted. Call requests are not. -Sid -Sid "May the light be with you." ______________________________________________ Siddhardha Garige www.luminepixels.com --- On Thu, 5/28/09, Daniel-Constantin Mierla <miconda@gmail.com> wrote: From: Daniel-Constantin Mierla <miconda@gmail.com> Subject: Re: [Kamailio-Users] Question regarding kamailio transaction processing. To: users@lists.kamailio.org Date: Thursday, May 28, 2009, 4:19 AM Hello, On 05/28/2009 01:12 AM, Iñaki Baz Castillo wrote:

El Miércoles, 27 de Mayo de 2009, Siddhardha Garige escribió:    

...

Here is our question. If number of transactions in kamailio memory contributes to processing delay should not it affect both REGISTRATION and CALL transactions equally? Why only REGISTRATION are getting affected while calls are fine without any retransmissions.      

Registration involves storage in memory and/or database, also a lookup in memory or database to retrieve all the contacts registered for that AoR. Could it be the reason?     what db_mode is used for usrloc module? Are you doing authentication?

Cheers, Daniel -- Daniel-Constantin Mierla http://www.asipto.com/ _______________________________________________ Kamailio (OpenSER) - Users mailing list Users@lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users