Hi list,

I was wondering whether I could use multiple rtpproxy daemons along one OpenSER instance, in order to both provide a failover mechanism as well as load-balacing.

Google immediately pointed me out the following thread: http://www.openser.org/pipermail/users/2005-October/001071.html

It happens that openser/modules/nathelper/nathelper.c contains the following comment: % 2005-02-24 Added support for using more than one rtp proxy, in which % case traffic will be distributed evenly among them. In addition, % each such proxy can be assigned a weight, which will specify % which share of the traffic should be placed to this particular % proxy. % % Introduce failover mechanism, so that if SER detects that one % of many proxies is no longer available it temporarily decreases % its weight to 0, so that no traffic will be assigned to it. % Such "disabled" proxies are periodically checked to see if they % are back to normal in which case respective weight is restored % resulting in traffic being sent to that proxy again. % % Those features can be enabled by specifying more than one "URI" % in the rtpproxy_sock parameter, optionally followed by the weight, % which if absent is assumed to be 1, for example: % % rtpproxy_sock="unix:/foo/bar=4 udp:1.2.3.4:3456=3 udp:5.6.7.8:5432=1"

At first glance, I would say the aforementioned comment states that nathelper achieves both failover and weighted load-balancing. Can anyone confirm this ?

Ultimately, I would like to do use the following arch :

________+----------+ /________| RTPProxy | +---------+ // +----------+ | OpenSER |_____// +---------+ /_________+----------+ / \ ______| RTPProxy | +---------+ / / +----------+ | OpenSER |__/_____/\ +---------+ \ _____+----------+ ____________| RTPProxy | +----------+

If I understand correctly how it works, this should be possible to use N OpenSER instances along with M RTProxy instances. Am I right ?

Thank you. Best regards,