< draft-eckert-detnet-mpls-tc-tcqf-01.txt		draft-eckert-detnet-mpls-tc-tcqf-02.txt >
	DETNET T. Eckert		DETNET T. Eckert
	Internet-Draft Futurewei Technologies USA		Internet-Draft Futurewei Technologies USA
	Intended status: Standards Track S. Bryant		Intended status: Standards Track S. Bryant
	Expires: 28 April 2022 University of Surrey ICS		Expires: 20 November 2022 University of Surrey ICS
	A.G. Malis		A. G. Malis
	Malis Consulting		Malis Consulting
	25 October 2021		19 May 2022
	Deterministic Networking (DetNet) Data Plane - MPLS TC Tagging for		Deterministic Networking (DetNet) Data Plane - MPLS TC Tagging for
	Cyclic Queuing and Forwarding (MPLS-TC TCQF)		Cyclic Queuing and Forwarding (MPLS-TC TCQF)
	draft-eckert-detnet-mpls-tc-tcqf-01		draft-eckert-detnet-mpls-tc-tcqf-02
	Abstract		Abstract
	This memo defines the use of the MPLS TC field of MPLS Label Stack		This memo defines the use of the MPLS TC field of MPLS Label Stack
	Entries (LSE) to support cycle tagging of packets for Multiple Buffer		Entries (LSE) to support cycle tagging of packets for Multiple Buffer
	Cyclic Queuing and Forwarding (TCQF). TCQF is a mechanism to support		Cyclic Queuing and Forwarding (TCQF). TCQF is a mechanism to support
	bounded latency forwarding in DetNet network.		bounded latency forwarding in DetNet network.
	Target benefits of TCQF include low end-to-end jitter, ease of high-		Target benefits of TCQF include low end-to-end jitter, ease of high-
	speed hardware implementation, optional ability to support large		speed hardware implementation, optional ability to support large
	skipping to change at page 1, line 44 ¶		skipping to change at page 1, line 44 ¶
	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 https://datatracker.ietf.org/drafts/current/.		Drafts is at https://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 28 April 2022.		This Internet-Draft will expire on 20 November 2022.
	Copyright Notice		Copyright Notice
	Copyright (c) 2021 IETF Trust and the persons identified as the		Copyright (c) 2022 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 (https://trustee.ietf.org/		Provisions Relating to IETF Documents (https://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
	and restrictions with respect to this document. Code Components		and restrictions with respect to this document. Code Components
	extracted from this document must include Simplified BSD License text		extracted from this document must include Revised BSD License text as
	as described in Section 4.e of the Trust Legal Provisions and are		described in Section 4.e of the Trust Legal Provisions and are
	provided without warranty as described in the Simplified BSD License.		provided without warranty as described in the Revised BSD License.
	Table of Contents		Table of Contents
	1. Introduction (informative) . . . . . . . . . . . . . . . . . 2		1. Introduction (informative) . . . . . . . . . . . . . . . . . 2
	2. Using TCQF in the DetNet Archticture and MPLS forwarding plane		2. Using TCQF in the DetNet Archticture and MPLS forwarding plane
	(informative) . . . . . . . . . . . . . . . . . . . . . . 3		(informative) . . . . . . . . . . . . . . . . . . . . . . 3
	3. MPLS T-CQF forwarding (normative) . . . . . . . . . . . . . . 6		3. MPLS T-CQF forwarding (normative) . . . . . . . . . . . . . . 6
	3.1. Configuration Data model and tag processing for MPLS TC		3.1. Configuration Data model and tag processing for MPLS TC
	TCQF . . . . . . . . . . . . . . . . . . . . . . . . . . 6		TCQF . . . . . . . . . . . . . . . . . . . . . . . . . . 6
	3.2. Packet processing . . . . . . . . . . . . . . . . . . . . 6		3.2. Packet processing . . . . . . . . . . . . . . . . . . . . 6
	skipping to change at page 12, line 14 ¶		skipping to change at page 12, line 14 ¶
	define such a YANG model not necessary to specify the algorithm would		define such a YANG model not necessary to specify the algorithm would
	be scope creep for this specification. Better done in a separate		be scope creep for this specification. Better done in a separate
	YANG document. Example additional YANG aspects for such a document		YANG document. Example additional YANG aspects for such a document
	are how to map parameters to configuration/operational space, what		are how to map parameters to configuration/operational space, what
	additional operational/monitoring parameter to support and how to map		additional operational/monitoring parameter to support and how to map
	the YANG objects required into various pre-existing YANG trees.		the YANG objects required into various pre-existing YANG trees.
	Improved text in forwarding section, simplified sentences, used		Improved text in forwarding section, simplified sentences, used
	simplified configuration data model.		simplified configuration data model.
			02
			Refresh
	9. References		9. References
	9.1. Normative References		9.1. Normative References
	[RFC3270] Le Faucheur, F., Wu, L., Davie, B., Davari, S., Vaananen,		[RFC3270] Le Faucheur, F., Wu, L., Davie, B., Davari, S., Vaananen,
	P., Krishnan, R., Cheval, P., and J. Heinanen, "Multi-		P., Krishnan, R., Cheval, P., and J. Heinanen, "Multi-
	Protocol Label Switching (MPLS) Support of Differentiated		Protocol Label Switching (MPLS) Support of Differentiated
	Services", RFC 3270, DOI 10.17487/RFC3270, May 2002,		Services", RFC 3270, DOI 10.17487/RFC3270, May 2002,
	<https://www.rfc-editor.org/info/rfc3270>.		<https://www.rfc-editor.org/info/rfc3270>.
	skipping to change at page 13, line 9 ¶		skipping to change at page 13, line 14 ¶
	[I-D.eckert-detnet-bounded-latency-problems]		[I-D.eckert-detnet-bounded-latency-problems]
	Eckert, T. and S. Bryant, "Problems with existing DetNet		Eckert, T. and S. Bryant, "Problems with existing DetNet
	bounded latency queuing mechanisms", Work in Progress,		bounded latency queuing mechanisms", Work in Progress,
	Internet-Draft, draft-eckert-detnet-bounded-latency-		Internet-Draft, draft-eckert-detnet-bounded-latency-
	problems-00, 12 July 2021,		problems-00, 12 July 2021,
	<https://www.ietf.org/archive/id/draft-eckert-detnet-		<https://www.ietf.org/archive/id/draft-eckert-detnet-
	bounded-latency-problems-00.txt>.		bounded-latency-problems-00.txt>.
	[I-D.ietf-bier-te-arch]		[I-D.ietf-bier-te-arch]
	Eckert, T., Cauchie, G., and M. Menth, "Tree Engineering		Eckert, T., Menth, M., and G. Cauchie, "Tree Engineering
	for Bit Index Explicit Replication (BIER-TE)", Work in		for Bit Index Explicit Replication (BIER-TE)", Work in
	Progress, Internet-Draft, draft-ietf-bier-te-arch-10, 9		Progress, Internet-Draft, draft-ietf-bier-te-arch-13, 25
	July 2021, <https://www.ietf.org/archive/id/draft-ietf-		April 2022, <https://www.ietf.org/archive/id/draft-ietf-
	bier-te-arch-10.txt>.		bier-te-arch-13.txt>.
	[I-D.ietf-detnet-bounded-latency]		[I-D.ietf-detnet-bounded-latency]
	Finn, N., Boudec, J. L., Mohammadpour, E., Zhang, J.,		Finn, N., Boudec, J. L., Mohammadpour, E., Zhang, J., and
	Varga, B., and J. Farkas, "DetNet Bounded Latency", Work		B. Varga, "DetNet Bounded Latency", Work in Progress,
	in Progress, Internet-Draft, draft-ietf-detnet-bounded-		Internet-Draft, draft-ietf-detnet-bounded-latency-10, 8
	latency-07, 1 September 2021,		April 2022, <https://www.ietf.org/archive/id/draft-ietf-
	<https://www.ietf.org/archive/id/draft-ietf-detnet-		detnet-bounded-latency-10.txt>.
	bounded-latency-07.txt>.
	[I-D.qiang-DetNet-large-scale-DetNet]		[I-D.qiang-DetNet-large-scale-DetNet]
	Qiang, L., Geng, X., Liu, B., Eckert, T., Geng, L., and G.		Qiang, L., Geng, X., Liu, B., Eckert, T., Geng, L., and G.
	Li, "Large-Scale Deterministic IP Network", Work in		Li, "Large-Scale Deterministic IP Network", Work in
	Progress, Internet-Draft, draft-qiang-DetNet-large-scale-		Progress, Internet-Draft, draft-qiang-DetNet-large-scale-
	DetNet-05, 2 September 2019,		DetNet-05, 2 September 2019,
	<https://www.ietf.org/archive/id/draft-qiang-DetNet-large-		<https://www.ietf.org/archive/id/draft-qiang-DetNet-large-
	scale-DetNet-05.txt>.		scale-DetNet-05.txt>.
	[RFC3209] Awduche, D., Berger, L., Gan, D., Li, T., Srinivasan, V.,		[RFC3209] Awduche, D., Berger, L., Gan, D., Li, T., Srinivasan, V.,
End of changes. 10 change blocks.
	19 lines changed or deleted		22 lines changed or added
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