RE: M2UA: Response to unexpected MAUP message

Please find my response. 

 

Thanks,

Salil

 

 

________________________________

From: flash view [mailto:[email protected]] 
Sent: Wednesday, June 06, 2007 12:29 PM
To: [email protected]
Subject: [Sigtran] M2UA: Response to unexpected MAUP message

 

Hello,

In the RFC 3331 4.3.4.3 ASP Active Procedures there is a statement: "If
the SGP receives any Data messages before an ASP Active message is
received, the SGP MAY discard them". I believe " Data messages" are the
MAUP messages. Is it correct? 
[Salil] Yes


Standard says that SGP MAY discard unexpected Data messages. But in case
of response to that messages, SGP can use MGMT Error message. The
question is: Which Error code should to be used?

I see two ways:

1. Error code  - Unexpected Message 0x6   - in case an SGP it was in the
Inactive state; (see The "Unexpected Message" error description in
3.3.3.1 Error (ERR))
2. Error code  - Protocol Error 0x7               - in case an SGP it
was in the Down state; 

 

[Salil] I believe for both the cases 0x06 should be filled. 0x07 is for
the bogus message not for the unexpected one.


 
Is it correct?

Thank You.

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