RFC 8228

Guidance on Designing Label Generation Rulesets (LGRs) Supporting Variant Labels, August 2017

Canonical URL:
https://www.rfc-editor.org/rfc/rfc8228.txt
File formats:
Plain TextPDF
Status:
INFORMATIONAL
Author:
A. Freytag
Stream:
IETF
Source:
NON WORKING GROUP

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8228

Discuss this RFC: Send questions or comments to iesg@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


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 to design LGRs to 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 RFC 7940.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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