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Non-Normative Synonyms in RFCs

Document type: Expired Internet-Draft (individual)
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Last updated: 2012-11-17 (latest revision 2012-05-16)
Intended RFC status: Unknown
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Specifications in RFCs contain normative keywords, as defined in RFC 2119, to signify requirements, permission or prohibitions. These include MUST, SHOULD and MAY, which are commonly recorded in all CAPITALS (but need not be). The words are sometimes also intended with non-normative meaning; this different usage can be confusing. Happily there are adequate alternatives for non-normative meanings. For such situations, this document provides some alternatives to the normative vocabulary of RFC 2119.


Tony Hansen <>
dcrocker <>

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)