RFC 2119 - Key words for use in RFCs to Indicate Requirement LevelsNetwork Working Group S. Bradner Request for Comments: 2119 Harvard University BCP: 14 March 1997 Category: Best Current Practice Key words for use in RFCs to Indicate Requirement Levels Status of this Memo This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements. Distribution of this memo is unlimited. Abstract
