Re: DPC + OPC Routing

anjali,

Send UPU(Inaccessible).  If remote user is ISUP, it will start UPT procedures.
If remove user is SCCP, it will start SST procedures.

--brian

anjali gurmukhani wrote:                                            (Mon, 09 Apr 2007 20:55:05)
> 
> 
> 
>    Hello Brian and all...
> 
> 
> 
>    I  had one question related to a scenario incase of  DPC + OPC routing
>    is used in M3UA. Please see the figure below.
> 
> 
> 
>    Consider   that   at  SG(STPB),  there  are  two  Application  servers
>    configured  handling the traffic for the same DPC but originating from
>    different OPCs
> 
> 
> 
>    AS1 - Rk Type - DPC + OPC - DPC = 0-0-9, OPC = 2-8-221 - ASP1
>    AS2 - Rk Type - DPC + OPC - DPC = 0-0-9, OPC = 2-8-222 - ASP2
> 
>        MSC1(2-8-221)
>              /-----\          STPA        STPB        DPC=0-0-9
>            ||       ||       +---- -+        +----- +
>             |       |--------|       +------- |
>    +--------ASP1(catering traffic for AS1)
>              \-----/        +--+--+        +---+-+
>                                 |               |
>                                 |               |
>                                 |               |
>         MSC2(2-8-222)  |               |
>                 ||------+---------+             +-----------ASP2(catering
>    traffic for AS2)
>               |     |
>                \---/
> 
> 
> 
>    Both AS's have a single ASP catering to them.
> 
> 
> 
>    If   the   ASP  serving  AS1  goes  down,  how  would  (through  which
>    message) STPB  (SG)propagate this to its adjoining STP(STPA) and hence
>    to  OPC(because  as  such DPC 0-0-9 is still available) , so that MSC1
>    does not send any messages for ASP1?
> 
> 
> 
> 
> 
>    -Regards
> 
>    Anjali.
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-- 
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/