Re : Query regarding reachability STATUS of Signaling Point Code

> 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)

But why does the SGW send NAVA only for routing context X?

Xiangsong

----- 原邮件 -----
发件人: Rajesh Makhija <[email protected]>
日期: 星期五, 三月 19日, 2010 下午6:59
主题: [Sigtran] Query regarding reachability STATUS of Signaling Point	Code
收件人: "[email protected]" <[email protected]>
抄送: Rajat2 Gupta <[email protected]>, Amit Jain <[email protected]>

> 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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