[cisco-voip] How does RIS function

[Subhrojyoti Banerjee]

Hi All,

In a cluster where we have 1 PUB and 7 SUB's, how does RIS work? Is it a mesh of information from "All-to-All" or is there a "Primary Provider" to which all other servers connect? Who is the primary provider, and what is the selection criteria? I read something about SSAPI Master and a selection criteria of the highest CTI ID but would like to get that validated. If anyone can throw some light on this it would be fantastic.

In addition is also had few other queries which are co-related-

1. Where is this RIS database located? Is it in the memory of the respective servers, or is it located on only one server in a cluster and all other servers pull information from it? I don't think this is part of SQL (prior to 5.x) database.
2. Where are the dynamic and static tables of RIS stored? Who gets to use the “RIS Cluster TCP port” of 2555 in a cluster and who is the “Primary Collector”? (These things can be found in the Service Parameters page for RIS). 


Thanks in advance,

Regards,

Subhrojyoti Banerjee


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