API Build-data JSON Resources
Theme

Choose how MSRBot.io looks on this device.

Auto (match system) Light mode Dark mode

Preference is stored in this browser only.

IETF RFC 2119
[ACTIVE]

Key words for use in RFCs to Indicate Requirement Levels

Metadata

Publisher
IETF
Doc Type
Best Practice
Pages
3
Abstract
In many standards track documents several words are used to signify the requirements in the specification. These words are often capitalized. This document defines these words as they should be interpreted in IETF documents. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
Publication Date
1997-03-01
Status Note
Best Current Practice
DOI
10.17487/RFC2119
ISSN
2070-1721
Link
https://doi.org/10.17487/RFC2119
Author(s)
Scott O. Bradner
Keyword(s)
Standards, Track, Documents
Latest version of IETF RFC 2119

Document Versions — IETF RFC 2119

  • ▶ IETF RFC 2119 (1997-03-01)
    THIS DOC [ACTIVE] [LATEST VERSION]
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/RFC2119.json

Amended by:
IETF RFC 8174 [Active*]

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree
Reference this Doc

Plain text (ISO 690 compliant)

Preview:
IETF RFC 2119, Key words for use in RFCs to Indicate Requirement Levels. Available at https://doi.org/10.17487/RFC2119
Snippet:
IETF RFC 2119, Key words for use in RFCs to Indicate Requirement Levels. Available at https://doi.org/10.17487/RFC2119

HTML (ISO 690 compliant)

Preview:
IETF RFC 2119, Key words for use in RFCs to Indicate Requirement Levels. Available at https://doi.org/10.17487/RFC2119
Snippet:
<span class="citation"><cite>IETF RFC 2119</cite>, Key words for use in RFCs to Indicate Requirement Levels. Available at <a href="https://doi.org/10.17487/RFC2119" target="_blank" rel="noopener">https://doi.org/10.17487/RFC2119</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
IETF RFC 2119, Key words for use in RFCs to Indicate Requirement Levels
doi: 10.17487/RFC2119
url: https://doi.org/10.17487/RFC2119
Snippet:
<li>
<cite id="bib-rfc2119">IETF RFC 2119</cite>, Key words for use in RFCs to Indicate Requirement Levels
<span class="doi">10.17487/RFC2119</span>
</li>

Referenced By