ERROR should not be sent in response to ERROR

Hi All,

 

Can any one clarify the contradictory scenario:

 

As per Section 3.8.1 in RFC 4666 "Error messages MUST NOT be generated
in response to other Error messages."

 

As per Section 3.8.1 again in RFC 4666 "The "Unsupported Message Class"
error is sent if a message with an unexpected or unsupported Message
Class is received.  For this error, the Diagnostic Information parameter
MUST be included with the first 40 octets of the offending message"

 

As per Section 3.8.1 again in RFC 4666 "The "Missing Parameter" error
would be sent if a mandatory parameter were not included in a message.
This error is also sent if a conditional parameter is not included in
the message but is required

in the context of the received message."

 

So in a scenario where ASP receives a message with Unsupported Message
Type it returns ERROR message with the Unsupported Message Type. However
if ASP doesn't include the Diagnostic Information, then should SGP
respond with an ERROR Missing Parameter?

 

Thanks

 

Regards,

Abhishek

_______________________________________________
Sigtran mailing list
[email protected]
https://www1.ietf.org/mailman/listinfo/sigtran