Re: Routing Context clarification

If the SSG recevs the DATA messages from an ASP which serves an AS, it should be able to process the DATA messages regardless of the RC. IMO, it does't matter whether RC is exchanged or not as long as the ASP serves one master.
 
 RC makes sense only if an ASP serves multiple ASes.
 

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From: [email protected] on behalf of Valerie Gastaud
Sent: Mon 10/13/2008 9:30 AM
To: [email protected]
Subject: [Sigtran] Routing Context clarification


Hello,
 
I'd like to get the advice from the list on the following question:
 
I believe it's very clear from the RFC 4666 that when multiple Routing Keys are used across a common association, the Routing Context MUST be sent to identify the traffic flow, assisting in the internal distribution of Data messages. This implies that the routing context must be sent in the ASPAC message and in the subsequent DATA messages for this RK. 
 
However in the case where there is only one Routing Key used across an association, it is specified that the routing context is optional and can be negotiated between the AS and SG (sent in the ASPAC message). 
What is not clearly specified then is if the routing context MUST be sent in the DATA message as soon as it has been sent in the ASPAC message or if the routing context can be sent in the ASPAC message and not in the DATA messages. 
 
What is the your advice on this point?
 
Valerie

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