[Technical Errata Reported] RFC6936 (4341)

[RFC Errata System <[e-mail]>]

The following errata report has been submitted for RFC6936,
"Applicability Statement for the Use of IPv6 UDP Datagrams with Zero Checksums".

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You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=6936&eid=4341

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Type: Technical
Reported by: Brian Carpenter <[e-mail]>

Section: 1.3.5

Original Text
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The ingress of a tunnel seeking to provide good
entropy in the flow label field would therefore need to create a
random flow label value and keep corresponding state so that all
packets that were associated with a flow would be consistently given
the same flow label.  Although possible, this complexity may not be
desirable in a tunnel ingress.

Corrected Text
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The ingress of a tunnel seeking to provide good
entropy in the flow label field would therefore need to create a
pseudo-random flow label value using a stateless method
as described in [RFC6438] so that all
packets that were associated with a flow would be consistently given
the same flow label.

Notes
-----
It is incorrect that a stateful method is needed, and presumably that
was the complexity judged undesirable. Also, we shouldn't say "random"
when we mean "pseudo-random."

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RFC6936 (draft-ietf-6man-udpzero-12)
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Title               : Applicability Statement for the Use of IPv6 UDP Datagrams with Zero Checksums
Publication Date    : April 2013
Author(s)           : G. Fairhurst, M. Westerlund
Category            : PROPOSED STANDARD
Source              : IPv6 Maintenance
Area                : Internet
Stream              : IETF
Verifying Party     : IESG