[Dime] [Technical Errata Reported] RFC6733 (6171)

RFC Errata System <rfc-editor@rfc-editor.org> Wed, 13 May 2020 13:27 UTC

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Subject: [Dime] [Technical Errata Reported] RFC6733 (6171)
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The following errata report has been submitted for RFC6733,
"Diameter Base Protocol".

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You may review the report below and at:
https://www.rfc-editor.org/errata/eid6171

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Type: Technical
Reported by: Valentin Micic <v@pharos-avantgard.com>

Section: 6.1.3

Original Text
-------------
A relay or proxy agent MUST check for forwarding loops when receiving
requests.  A loop is detected if the server finds its own identity in
a Route-Record AVP.  When such an event occurs, the agent MUST answer
with the Result-Code AVP set to DIAMETER_LOOP_DETECTED.

Corrected Text
--------------
A relay or proxy agent MUST check for forwarding loops when receiving
requests. A loop is detected if a relay or proxy agent finds its own
identity in a Route-Record AVP.  When such an event occurs, the agent
MUST answer with the Result-Code AVP set to DIAMETER_LOOP_DETECTED.

Notes
-----
The term "server" used to identify party which is to detect its own identity as a part of Route-Record AVP is semantically too close to the term Diameter Server. If "relay or proxy agent MUST check", the question is what would be the consequence of such action if  the (Diameter) "server" is to do the "detecting"?

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RFC6733 (draft-ietf-dime-rfc3588bis-33)
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Title               : Diameter Base Protocol
Publication Date    : October 2012
Author(s)           : V. Fajardo, Ed., J. Arkko, J. Loughney, G. Zorn, Ed.
Category            : PROPOSED STANDARD
Source              : Diameter Maintenance and Extensions
Area                : Operations and Management
Stream              : IETF
Verifying Party     : IESG