[mpls] [Technical Errata Reported] RFC6790 (3431)

RFC Errata System <rfc-editor@rfc-editor.org> Sun, 16 December 2012 19:49 UTC

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Date: Sun, 16 Dec 2012 11:40:49 -0800
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Subject: [mpls] [Technical Errata Reported] RFC6790 (3431)
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The following errata report has been submitted for RFC6790,
"The Use of Entropy Labels in MPLS Forwarding".

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You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=6790&eid=3431

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Type: Technical
Reported by: Jeff Wheeler <jsw@inconcepts.biz>

Section: 5.2

Original Text
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This is an optional, transitive BGP attribute of value 28.

Corrected Text
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This is an optional, transitive BGP Attribute having Attribute Type Code 28, length 0, and no data.

Notes
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"Value" is (slightly) confusing in this context.  The text should also explicitly specify that there isn't Attribute Data and thus the length will be 0.

Ambiguity on this matter may lead implementations to utilize the data field in some unforeseen way.  Other implementations may then reject the attribute, applying general attribute processing rules, with an Attribute Length Error (RFC 4271 S6.3 paragraph 4.)

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-------------
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RFC6790 (draft-ietf-mpls-entropy-label-06)
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Title               : The Use of Entropy Labels in MPLS Forwarding
Publication Date    : November 2012
Author(s)           : K. Kompella, J. Drake, S. Amante, W. Henderickx, L. Yong
Category            : PROPOSED STANDARD
Source              : Multiprotocol Label Switching
Area                : Routing
Stream              : IETF
Verifying Party     : IESG