M3UA, Routing Context parameter in SSNM

Hi,

I am doing inter-working test between our ASP stack and other SGP stack.
but, I have found a ambiguous meaning when I test SSNM function.
We receive a SCON that does not include the Routing Context parameter.
but, there is single Routing Key and Routing Context between ASP and  
SGP.

In RFC 3332,
    Routing Context: n x 32-bits (unsigned integer)

       The optional Routing Context parameter contains the Routing
       Context values associated with the DUNA message.  Where a Routing
       Key has not been coordinated between the SGP and ASP, sending of
       Routing Context is not required.  Where multiple Routing Keys and
       Routing Contexts are used across a common association, the  
Routing
       Context(s) MUST be sent to identify the concerned traffic flows
       for which the DUNA message applies, assisting in outgoing traffic
       management and internal distribution of MTP-PAUSE indications to
       MTP3-Users at the receiver.

if there is single Routing Key and Routing Context between the SGP  
and ASP as our configuration,
is the Routing Context parameter in SSNM message optional? or mandatory?


Regards!



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Moo-hyoung Kim
Core Technology / Network BIZ. Division
UANGEL Corporation
Tel   : +82-31-710-6240
Mobile: +82-11-9052-1122
E-mail: [email protected]