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RFC 6733, "Diameter Base Protocol", October 2012

Source of RFC: dime (ops)
See Also: RFC 6733 w/ inline errata

Errata ID: 4615
Status: Verified
Type: Technical
Publication Format(s) : TEXT

Reported By: Lionel Morand
Date Reported: 2016-02-05
Verifier Name: Benoit Claise
Date Verified: 2016-05-17

Section 7.1.5 says:

   DIAMETER_AVP_UNSUPPORTED 5001

      The peer received a message that contained an AVP that is not
      recognized or supported and was marked with the 'M' (Mandatory)
      bit.  A Diameter message with this error MUST contain one or more
      Failed-AVP AVPs containing the AVPs that caused the failure.

It should say:

   DIAMETER_AVP_UNSUPPORTED 5001

      The peer received a message that contained an AVP that is not
      recognized or supported and was marked with the 'M' (Mandatory)
      bit.  A Diameter message with this error MUST contain one 
      Failed-AVP AVP containing the AVPs that caused the failure.

Notes:

The RFC6733 has clarified that only one instance of Failed-AVP AVP can be present in the command answer. One Failed-AVP AVP is enough because this AVP is defined as Grouped AVP that can contain multiple AVPs. In the present case, each of the nested AVPs in the Failed-AVP AVP are the AVPs that caused the failure.

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