The IESG has received a request from an individual submitter to consider the following document: - 'Variant Rules' <draft-freytag-lager-variant-rules-05.txt> as Informational RFC Some comments were raised in IETF LC about how this document relates to RFC 7940. The document was updated to clarify that. This is a Second IETF LC to make IETF community aware of changes to this draft. The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2017-05-15. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract Rules for validating identifier labels and alternate representations of those labels (variants) are known as "Label Generation Rulesets" (LGRs); they are used for the implementation of identifier systems such as Internationalized Domain Names (IDNs). This document describes ways of designing Label Generation Rulesets (LGRs) that support variant labels. In designing LGRs, it is important to ensure that the label generation rules are consistent and well-behaved in the presence of variants. The design decisions can then be expressed using the XML representation of LGRs that is defined in RFC7940. The file can be obtained via https://datatracker.ietf.org/doc/draft-freytag-lager-variant-rules/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-freytag-lager-variant-rules/ballot/ No IPR declarations have been submitted directly on this I-D.
