Query regarding reachability STATUS of Signaling Point Code

Hello,



We would like to understand how the STATUS of Signaling Point Code (that uniquely identifies an SS7 node) shall be interpreted by M3UA at ASP/AS side.

Entities Configured:

Let us consider an ASP is serving two Application servers, say AS-1 and AS-2.  This ASP is connected (through SCTP association) to an SGP. This SGP is serving an SG.

The routing context of AS1 is X and routing context of AS2 is Y.



A route is configured for an SS7 destination (say with point code 101) through this SG.

This SS7 node with point code 101 is initially unavailable.

Now, a DAVA message (for SS7 point code 101) is sent by SGP to ASP with routing context X (which is the routing context corresponding to AS1)

There seem to be two possible interpretations:

1.       SS7 node with point code (101) is marked as reachable for both the Application servers, AS1 and AS2.
2.       SS7 point code (101) is marked as reachable for AS-1 only (as determined by the RC in the DUNA message) and remains unreachable for AS-2.

Which one of the above-mentioned interpretations is correct?

Regards

Rajesh




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