trixter aka Bret McDanel
2006-Feb-16 04:06 UTC
[Asterisk-Users] iax2 trunking known problems?
I am curious if anyone has had problems trunking iax2 with 100+ concurrent calls. I am planning on testing this out tomorrow, however I wanted to know if anyone else has had a problem with this prior to my test so I know what to look for if anything is known and what resolutions have been found if there are any known problems. Specifically I am doing this on fbsd 6 with asterisk 1.2.4 using g.729 (bandwidth calculators suggest 0.8Mbps used with this setup, compared to the 2.3Mbps (calculated averaging 2.25Mbps so its close enough). That is a considerable savings, not to mention that there will be fewer sends/recvs so hopefully less irq time spent accessing the ethernet card :) I am just concerned with packet sizes in call quantities this large, and other factors. Anyone that has done this before I would appreciate hearing from you. -- Trixter http://www.0xdecafbad.com Bret McDanel UK +44 870 340 4605 Germany +49 801 777 555 3402 US +1 360 207 0479 or +1 516 687 5200 FreeWorldDialup: 635378 http://www.sacaug.org/ Sacramento Asterisk Users Group -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part Url : http://lists.digium.com/pipermail/asterisk-users/attachments/20060216/d1b6f541/attachment.pgp
A long time ago i tried to make one big iax2 trunk for one of my customers, i soon changed this to several small trunks. (bandwith doesnt rise all that much if you use 2 trunks instead of 1.) Asterisk didnt seem to like my big trunk very much (i don't remember how big it was, but probably over 100 calls). Its a very long time ago, maybe some of those issues are resolved by now. Zoa trixter aka Bret McDanel wrote:>I am curious if anyone has had problems trunking iax2 with 100+ >concurrent calls. I am planning on testing this out tomorrow, however I >wanted to know if anyone else has had a problem with this prior to my >test so I know what to look for if anything is known and what >resolutions have been found if there are any known problems. > >Specifically I am doing this on fbsd 6 with asterisk 1.2.4 using g.729 >(bandwidth calculators suggest 0.8Mbps used with this setup, compared to >the 2.3Mbps (calculated averaging 2.25Mbps so its close enough). That >is a considerable savings, not to mention that there will be fewer >sends/recvs so hopefully less irq time spent accessing the ethernet >card :) > >I am just concerned with packet sizes in call quantities this large, and >other factors. > >Anyone that has done this before I would appreciate hearing from you. > > > > >------------------------------------------------------------------------ > >_______________________________________________ >--Bandwidth and Colocation provided by Easynews.com -- > >Asterisk-Users mailing list >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > >
The trunks were made to be maximum 60 simultaneous channels iirc. I doubt seriously you will be able to do 600 simultaneous on any system. (with or without trunking). (at least out of the box). Zoa trixter aka Bret McDanel wrote:>On Thu, 2006-02-16 at 14:04 +0200, Zoa wrote: > > >>I think, but am not sure, that with a lot of calls inside the trunk, >>some calls seemed to go suddenly go outside of the trunk in one or more >>directions, bursts of error messages appeared on the cli etc. >> >>i didnt investigate it a lot more, my problems went away with splitting >>them up in smaller trunks. >> >> > >I will watch for that both end points are 1.2.4 so it seems that this >level of load testing is something that would be handy to have. > >How large were the smaller trunks? I am ultimtely looking at doing >about 300-600 channels eventually, and this type of an issue would be >nice to know of beforehand :) > > > > >------------------------------------------------------------------------ > >_______________________________________________ >--Bandwidth and Colocation provided by Easynews.com -- > >Asterisk-Users mailing list >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > >