Thanks, this is very much what I was looking for. It appears the ratelimit/piplimit modules offer some degree of overload control through queue drops and invite rejections based on a server's local cpu load. Some of the other overload control mechanisms described in the RFC (e.g. window based control and loss based control) would also be of interest to me. Not sure if public implementations exist or if they are restricted to research implementations. Thanks for the pointer to ratelimit nevertheless.
-----Original Message----- From: sr-users-boun...@lists.sip-router.org [mailto:sr-users-boun...@lists.sip-router.org] On Behalf Of Alex Balashov Sent: Wednesday, July 25, 2012 2:39 PM To: sr-users@lists.sip-router.org Subject: Re: [SR-Users] Overload Control But also, check out this module: http://www.kamailio.org/docs/modules/3.3.x/modules/pipelimit.html On 07/25/2012 02:33 PM, Kaplan, Michael A wrote: > Sure - I'm referring to mechanisms for the server to advertise to upstream > neighbors to reduce request rates. This could include methods that appear in > RFC 6357 (e.g. rate-limits, window-based control, loss-rate enforcement). I > suppose the try-again-after method would be of interest as well. > > > -----Original Message----- > From: sr-users-boun...@lists.sip-router.org > [mailto:sr-users-boun...@lists.sip-router.org] On Behalf Of Alex > Balashov > Sent: Wednesday, July 25, 2012 2:29 PM > To: sr-users@lists.sip-router.org > Subject: Re: [SR-Users] Overload Control > > Can you elaborate as to what you mean by that term, "overload control"? > > On 07/25/2012 01:49 PM, Kaplan, Michael A wrote: > >> Folks, >> >> I'm trying to figure out if either Kamailio or OpenSIPs provides the >> various overload control algorithms recommended in the IETF or >> elsewhere. I haven't found documentation to this effect. Has anyone >> looked into this or used such techniques? >> >> Thanks, >> >> Mike >> >> >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing >> list sr-users@lists.sip-router.org >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >> > > > -- > Alex Balashov - Principal > Evariste Systems LLC > 235 E Ponce de Leon Ave > Suite 106 > Decatur, GA 30030 > Tel: +1-678-954-0670 > Fax: +1-404-961-1892 > Web: http://www.evaristesys.com/, http://www.alexbalashov.com/ > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > list sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > list sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > -- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/ _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
