draft-ietf-tsvwg-iana-dscp-registry-03.txt		draft-ietf-tsvwg-iana-dscp-registry-04.txt
	Transport Area Working Group G. Fairhurst		Transport Area Working Group G. Fairhurst
	Internet-Draft University of Aberdeen		Internet-Draft University of Aberdeen
	Updates: 2474 (if approved) May 07, 2018		Updates: 2474 (if approved) May 08, 2018
	Intended status: Standards Track		Intended status: Standards Track
	Expires: November 06, 2018		Expires: November 07, 2018
	IANA Assignment of DSCP Pool 3 (xxxx01) Values to require Publication of		IANA Assignment of DSCP Pool 3 (xxxx01) Values to require Publication of
	a Standards Track or Best Current Practice RFC		a Standards Track or Best Current Practice RFC
	draft-ietf-tsvwg-iana-dscp-registry-03		draft-ietf-tsvwg-iana-dscp-registry-04
	Abstract		Abstract
	The Differentiated Services (Diffserv) architecture specifies use of		The Differentiated Services (Diffserv) architecture specifies use of
	a field in the IPv4 and IPv6 packet headers to carry Diffserv		a field in the IPv4 and IPv6 packet headers to carry Diffserv
	Codepoint (DSCP) values. The Internet Assigned Numbers Authority		Codepoint (DSCP) values. The Internet Assigned Numbers Authority
	(IANA) maintains a registry of assigned DSCP values.		(IANA) maintains a registry of assigned DSCP values.
	This update to RFC2474 changes the IANA assignment method for Pool 3		This update to RFC2474 changes the IANA assignment method for Pool 3
	of the registry (i.e., DSCP values of the form xxxx01) to Standards		of the registry (i.e., DSCP values of the form xxxx01) to Standards
	skipping to change at page 1, line 43 ¶		skipping to change at page 1, line 43 ¶
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF). Note that other groups may also distribute		Task Force (IETF). Note that other groups may also distribute
	working documents as Internet-Drafts. The list of current Internet-		working documents as Internet-Drafts. The list of current Internet-
	Drafts is at http://datatracker.ietf.org/drafts/current/.		Drafts is at http://datatracker.ietf.org/drafts/current/.
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	This Internet-Draft will expire on November 06, 2018.		This Internet-Draft will expire on November 07, 2018.
	Copyright Notice		Copyright Notice
	Copyright (c) 2018 IETF Trust and the persons identified as the		Copyright (c) 2018 IETF Trust and the persons identified as the
	document authors. All rights reserved.		document authors. All rights reserved.
	This document is subject to BCP 78 and the IETF Trust's Legal		This document is subject to BCP 78 and the IETF Trust's Legal
	Provisions Relating to IETF Documents (http://trustee.ietf.org/		Provisions Relating to IETF Documents (http://trustee.ietf.org/
	license-info) in effect on the date of publication of this document.		license-info) in effect on the date of publication of this document.
	Please review these documents carefully, as they describe your rights		Please review these documents carefully, as they describe your rights
	skipping to change at page 2, line 33 ¶		skipping to change at page 2, line 33 ¶
	7.1. Normative References . . . . . . . . . . . . . . . . . . . 5		7.1. Normative References . . . . . . . . . . . . . . . . . . . 5
	7.2. Informative References . . . . . . . . . . . . . . . . . . 6		7.2. Informative References . . . . . . . . . . . . . . . . . . 6
	Appendix A. Revision Notes . . . . . . . . . . . . . . . . . . . . 6		Appendix A. Revision Notes . . . . . . . . . . . . . . . . . . . . 6
	Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 7		Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 7
	1. Introduction		1. Introduction
	The Differentiated Services (Diffserv) [RFC2475] architecture		The Differentiated Services (Diffserv) [RFC2475] architecture
	(updated by [RFC3260]) provides scalable service differentiation in		(updated by [RFC3260]) provides scalable service differentiation in
	the Internet. Diffserv uses the six most significant bits of the		the Internet. Diffserv uses the six most significant bits of the
	former IPv4 Type of Service (TOS) octet or the former IPV6 Traffic		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		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		Codepoint (DSCP). This DSCP value is used to select a Diffserv Per
	hop Behaviour, PHB.		hop Behaviour, PHB.
	The six bit field is capable of conveying 64 distinct codepoints, and		The six bit field is capable of conveying 64 distinct codepoints, and
	this codepoint space has been divided into three pools for the		this codepoint space has been divided into three pools for the
	purpose of codepoint assignment and management (as shown in figure		purpose of codepoint assignment and management (as shown in figure
	1). Pool 1 comprises 32 codepoints [RFC2474]. These are assigned by		1). Pool 1 comprises 32 codepoints [RFC2474]. These are assigned by
	Standards Action, as defined in [RFC8126]. Pool 2 comprises a pool		Standards Action, as defined in [RFC8126]. Pool 2 comprises a pool
	of 16 codepoints reserved for experimental or Local Use (EXP/LU) as		of 16 codepoints reserved for experimental or Local Use (EXP/LU) as
	skipping to change at page 5, line 5 ¶		skipping to change at page 5, line 5 ¶
	5. IANA Considerations		5. IANA Considerations
	This section requests IANA to change the use of Pool 3 in the DSCP		This section requests IANA to change the use of Pool 3 in the DSCP
	registry and to manage this pool using a Standards Action assignment		registry and to manage this pool using a Standards Action assignment
	method.		method.
	This requests IANA to make the following changes to the		This requests IANA to make the following changes to the
	Differentiated Services field Codepoints (DSCP) Registry, made		Differentiated Services field Codepoints (DSCP) Registry, made
	available at [Registry].		available at [Registry].
			IANA is requested to reference RFC3260 and this current document for
			Pool 1.
	This update does not modify the IANA registry text for Pool 2. This		This update does not modify the IANA registry text for Pool 2. This
	pool continues to preserve the note shown in Figure 2.		pool continues to preserve the note shown in Figure 2.
	The previous registry text:		The previous registry text:
	3 xxxx01 Experimental or Local Use May be utilized for future		3 xxxx01 Experimental or Local Use May be utilized for future
	Standards Action allocations as necessary.		Standards Action allocations as necessary.
	is replaced with the following registry text:		is replaced with the following registry text:
	3 xxxx01 Standards Action.		3 xxxx01 Standards Action.
	To manage codepoints in Pool 3, IANA is requested to create and		To manage codepoints in Pool 3, IANA is requested to create and
	maintain a "Pool 3 Codepoints" entry. Pool 3 of the registry is to		maintain a "Pool 3 Codepoints" subregistry. Pool 3 of the registry
	be created initially empty, with a format identical to that used for		is to be created initially empty, with a format identical to that
	"Pool 1 Codepoints".		used for "Pool 1 Codepoints". IANA is requested to reference RFC3260
			and this current document for Pool 3.
	The Registration Procedure for use of Pool 3 is "Standards Action"		The Registration Procedure for use of Pool 3 is "Standards Action"
	[RFC8126]. IANA is expected to normally make assignments from Pool		[RFC8126]. IANA is expected to normally make assignments from Pool
	1, until this Pool is exhausted, but MAY make assignments from Pool 3		1, until this Pool is exhausted, but MAY make assignments from Pool 3
	where the format of the codepoint has properties that are needed for		where the format of the codepoint has properties that are needed for
	a specific PHB. The required characteristics for choosing the DSCP		a specific PHB. The required characteristics for choosing the DSCP
	value MUST be explained in the IANA considerations of the document		value MUST be explained in the IANA considerations of the document
	that requests any assignment from Pool 3		that requests any assignment from Pool 3
	IANA is requested to reference RFC3260 and this current document.
	6. Acknowledgments		6. Acknowledgments
	G. Fairhurst received funding from the European Union's Horizon 2020		G. Fairhurst received funding from the European Union's Horizon 2020
	research and innovation program 2014-2018 under grant agreement No.		research and innovation program 2014-2018 under grant agreement No.
	644334 (NEAT).		644334 (NEAT).
	7. References		7. References
	7.1. Normative References		7.1. Normative References
	skipping to change at page 7, line 10 ¶		skipping to change at page 7, line 10 ¶
	o Fixed exploded acronyms.		o Fixed exploded acronyms.
	Working Group submission as draft -02		Working Group submission as draft -02
	o Corrections after WGLC.		o Corrections after WGLC.
	Working Group submission as draft -03		Working Group submission as draft -03
	o Corrections after TSVWG Shepherd Review.		o Corrections after TSVWG Shepherd Review.
			Working Group submission as draft -04
			o Added RFC 3260 as a necessary downref, with IANA asked to
			reference this.
	Author's Address		Author's Address
	Godred Fairhurst		Godred Fairhurst
	University of Aberdeen		University of Aberdeen
	Department of Engineering		Department of Engineering
	Fraser Noble Building		Fraser Noble Building
	Aberdeen, AB24 3UE		Aberdeen, AB24 3UE
	Scotland		Scotland
	Email: gorry@erg.abdn.ac.uk		Email: gorry@erg.abdn.ac.uk
End of changes. 9 change blocks.
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