-----Message d'origine----- De : Klaus Darilion [mailto:klaus.mailinglists@pernau.at] Envoyé : vendredi 9 septembre 2005 10:29 À : Vincent Luba Cc : sip-implementors@cs.columbia.edu; serusers@iptel.org; users@openser.org Objet : Re: [Serusers] Scalability in presence notification
simple server and high network traffic vs complicated server and low traffic and centralized features (buddy list...)
You're right in my case I'll have to use server based. I've performed some load tests with SER and noticed that PUBLISH & SUBSCRIBE requests uses lot of CPU power while NOTIFY request are not that cpu intensive.
Additionally, you also have to consider SIP implementations. There are not thousands of SIP clients which supports all presence modes. Some clients supports end2end, some clients support server based. The same with SIP proxies.
Conlusion. Get some clients and implement both scenarios and find the one which fits your needs.
I'll be using a GnomeMeeting mod client and server based presence should be enabled.
Thank you for you information,
Vincent