Update to IANA Registration Procedures for Pool 3 Values in the Differentiated Services Field Codepoints Registry
RFC 8436, “Update to IANA Registration Procedures for Pool 3 Values in the Differentiated Services Field Codepoints Registry”, is a Proposed Standard document published in August 2018 by G. Fairhurst. It updates RFC 2474. The canonical text is published by the RFC Editor.
Abstract
The Differentiated Services (Diffserv) architecture specifies use of the DS field in the IPv4 and IPv6 packet headers to carry one of 64 distinct differentiated services field codepoint (DSCP) values. The Internet Assigned Numbers Authority (IANA) maintains a registry of assigned DSCP values.
This update to RFC 2474 changes the IANA registration policy for Pool 3 of the registry (i.e., DSCP values of the form xxxx01) to Standards Action, i.e., values are assigned through a Standards Track or Best Current Practice RFC. The update also removes permission for experimental and local use of the codepoints that form Pool 3 of the DSCP registry; Pool 2 Codepoints (i.e., DSCP values of the form xxxx11) remain available for these purposes.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 8436 is hosted at rfc-editor.org. Available in TXT,HTML.
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