Hi All, I am using Kamailio ** *v4.4.x* to load balanced traffic to FreeSWITCH servers. I have query regarding ds_ping_interval and ds_probing_threshold. We have very high traffic (around 200-400 (CPS) calls per sec) hitting on Kamailio which then distribute it to 2-3 FreeSWITCH servers. What is the optimal value should I set to ds_ping_interval and ds_probing_threshold?
If I set ds_ping_interval=2 and ds_probing_threshold=1 then in every 2 sec, I would come to know if my FreeSWITCH server is down/up. But by setting such low values, I afraid there would be lot of SIP traffic on network. If I set high (say ds_probing_threshold=5) then I may loose high number of calls (200 CPS, I will loose 1000 calls) in case FreeSWITCH server is down.
As I said earlier we have very high traffic hitting on Kamailio, can't kamailio use INVITE itself to probe FreeSWITCH server is down/up? In case of low traffic can't it switch over to OPTION mechanism?
-- Thanks in Advance , Atul