rfc-8174

Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words

B. Leiba

date2017-05 streamIETF wgnon working group statusBEST CURRENT PRACTICE pages4 canonicalhttps://www.rfc-editor.org/rfc/rfc8174 doi10.17487/RFC8174 errataview

RFC 2119 specifies common key words that may be used in protocol specifications. This document aims to reduce the ambiguity by clarifying that only UPPERCASE usage of the key words have the defined special meanings.

updates

rfc-2119 — Key words for use in RFCs to Indicate Requirement Levels

also

bcp-14