IANA Assignment of DSCP Pool 3 (xxxx01) Values to require Publication of a Standards Track or Best Current Practice RFC
draft-ietf-tsvwg-iana-dscp-registry-08

Document Type Active Internet-Draft (tsvwg WG)
Last updated 2018-06-20 (latest revision 2018-06-08)
Replaces draft-fairhurst-tsvwg-iana-dscp-registry
Stream IETF
Intended RFC status Proposed Standard
Formats plain text xml pdf html bibtex
Reviews
Stream WG state Submitted to IESG for Publication (wg milestone: Aug 2018 - Submit 'A Lower Effo... )
Document shepherd David Black
Shepherd write-up Show (last changed 2018-05-08)
IESG IESG state RFC Ed Queue
Consensus Boilerplate Yes
Telechat date
Responsible AD Spencer Dawkins
Send notices to David Black <david.black@dell.com>
IANA IANA review state IANA OK - Actions Needed
IANA action state RFC-Ed-Ack
RFC Editor RFC Editor state EDIT
Transport Area Working Group                                G. Fairhurst
Internet-Draft                                    University of Aberdeen
Updates: 2474 (if approved)                                June 07, 2018
Intended status: Standards Track
Expires: December 07, 2018

IANA Assignment of DSCP Pool 3 (xxxx01) Values to require Publication of
             a Standards Track or Best Current Practice RFC
                 draft-ietf-tsvwg-iana-dscp-registry-08

Abstract

   The Differentiated Services (Diffserv) architecture specifies use of
   a field in the IPv4 and IPv6 packet headers to carry Diffserv
   Codepoint (DSCP) values.  The Internet Assigned Numbers Authority
   (IANA) maintains a registry of assigned DSCP values.

   This update to RFC2474 changes the IANA assignment 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.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on December 07, 2018.

Fairhurst              Expires December 07, 2018                [Page 1]
Internet-Draft      IANA DSCP assignment for Pool 3            June 2018

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (http://trustee.ietf.org/
   license-info) in effect on the date of publication of this document.
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.  Code Components
   extracted from this document must include Simplified BSD License text
   as described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  The update to RFC2474  . . . . . . . . . . . . . . . . . . . .  4
   4.  Security Considerations  . . . . . . . . . . . . . . . . . . .  4
   5.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  5
   6.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . .  5
   7.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  5
     7.1.  Normative References . . . . . . . . . . . . . . . . . . .  6
     7.2.  Informative References . . . . . . . . . . . . . . . . . .  6
   Appendix A. Revision Notes . . . . . . . . . . . . . . . . . . . .  6
   Author's Address . . . . . . . . . . . . . . . . . . . . . . . . .  7

1.  Introduction

   The Differentiated Services (Diffserv) [RFC2475] architecture
   (updated by [RFC3260]) provides scalable service differentiation in
   the Internet.  Diffserv uses the six most significant bits of the
   former IPv4 Type of Service (TOS) octet or the former IPv6 Traffic
   Class octet to convey the field, which is used to carry the Diffserv
   Codepoint (DSCP). This DSCP value is used to select a Diffserv Per
   hop Behaviour, PHB.

   The six bit field is capable of conveying 64 distinct codepoints, and
   this codepoint space has been divided into three pools for the
   purpose of codepoint assignment and management (as shown in figure
   1). Pool 1 comprises 32 codepoints [RFC2474].  These are assigned by
   Standards Action, as defined in [RFC8126].  Pool 2 comprises a pool
   of 16 codepoints reserved for experimental or Local Use (EXP/LU) as
   defined in [RFC2474], and Pool 3 comprises 16 codepoints, which were
   specified as "initially available for experimental or local use, but
   which should be preferentially utilized for standardized assignments
   if Pool 1 is ever exhausted" [RFC2474].

Fairhurst              Expires December 07, 2018                [Page 2]
Internet-Draft      IANA DSCP assignment for Pool 3            June 2018
Show full document text