rfc9791v2.txt		rfc9791.txt
	Internet Engineering Task Force (IETF) T. Saad		Internet Engineering Task Force (IETF) T. Saad
	Request for Comments: 9791 Cisco Systems, Inc.		Request for Comments: 9791 Cisco Systems, Inc.
	Category: Informational K. Makhijani		Category: Informational K. Makhijani
	ISSN: 2070-1721 Independent		ISSN: 2070-1721 Independent
	H. Song		H. Song
	Futurewei Technologies		Futurewei Technologies
	G. Mirsky		G. Mirsky
	Ericsson		Ericsson
	June 2025		July 2025
	Use Cases for MPLS Network Action Indicators and Ancillary Data		Use Cases for MPLS Network Action Indicators and Ancillary Data
	Abstract		Abstract
	This document presents use cases that have a common feature that may		This document presents use cases that have a common feature that may
	be addressed by encoding network action indicators and associated		be addressed by encoding network action indicators and associated
	ancillary data within MPLS packets. There is community interest in		ancillary data within MPLS packets. There is community interest in
	extending the MPLS data plane to carry such indicators and ancillary		extending the MPLS data plane to carry such indicators and ancillary
	data to address these use cases.		data to address these use cases.
	skipping to change at line 374 ¶		skipping to change at line 374 ¶
	documents. It is strongly recommended that these solution documents		documents. It is strongly recommended that these solution documents
	undergo review by a security expert early in their development,		undergo review by a security expert early in their development,
	ideally during the Working Group Last Call phase.		ideally during the Working Group Last Call phase.
	7. References		7. References
	7.1. Normative References		7.1. Normative References
	[RFC9789] Andersson, L., Bryant, S., Bocci, M., and T. Li, "MPLS		[RFC9789] Andersson, L., Bryant, S., Bocci, M., and T. Li, "MPLS
	Network Actions (MNAs) Framework", RFC 9789,		Network Actions (MNAs) Framework", RFC 9789,
	DOI 10.17487/RFC9789, June 2025,		DOI 10.17487/RFC9789, July 2025,
	<https://www.rfc-editor.org/info/rfc9789>.		<https://www.rfc-editor.org/info/rfc9789>.
	7.2. Informative References		7.2. Informative References
	[GDF] Zhang, Z., Bonica, R., Kompella, K., and G. Mirsky,		[GDF] Zhang, Z., Bonica, R., Kompella, K., and G. Mirsky,
	"Generic Delivery Functions", Work in Progress, Internet-		"Generic Delivery Functions", Work in Progress, Internet-
	Draft, draft-zzhang-intarea-generic-delivery-functions-03,		Draft, draft-zzhang-intarea-generic-delivery-functions-03,
	11 July 2022, <https://datatracker.ietf.org/doc/html/		11 July 2022, <https://datatracker.ietf.org/doc/html/
	draft-zzhang-intarea-generic-delivery-functions-03>.		draft-zzhang-intarea-generic-delivery-functions-03>.
	skipping to change at line 518 ¶		skipping to change at line 518 ¶
	Networking (DetNet) with the MPLS Data Plane", RFC 9546,		Networking (DetNet) with the MPLS Data Plane", RFC 9546,
	DOI 10.17487/RFC9546, February 2024,		DOI 10.17487/RFC9546, February 2024,
	<https://www.rfc-editor.org/info/rfc9546>.		<https://www.rfc-editor.org/info/rfc9546>.
	[RFC9613] Bocci, M., Ed., Bryant, S., and J. Drake, "Requirements		[RFC9613] Bocci, M., Ed., Bryant, S., and J. Drake, "Requirements
	for Solutions that Support MPLS Network Actions (MNAs)",		for Solutions that Support MPLS Network Actions (MNAs)",
	RFC 9613, DOI 10.17487/RFC9613, August 2024,		RFC 9613, DOI 10.17487/RFC9613, August 2024,
	<https://www.rfc-editor.org/info/rfc9613>.		<https://www.rfc-editor.org/info/rfc9613>.
	[SFP-VERIF]		[SFP-VERIF]
	Yao, L. and G. Mirsky, "MPLS-based Service Function		Liu, Y. and G. Mirsky, "MPLS-based Service Function
	Path(SFP) Consistency Verification", Work in Progress,		Path(SFP) Consistency Verification", Work in Progress,
	Internet-Draft, draft-lm-mpls-sfc-path-verification-03, 11		Internet-Draft, draft-lm-mpls-sfc-path-verification-03, 11
	June 2022, <https://datatracker.ietf.org/doc/html/draft-		June 2022, <https://datatracker.ietf.org/doc/html/draft-
	lm-mpls-sfc-path-verification-03>.		lm-mpls-sfc-path-verification-03>.
	[SR-TI-LFA]		[SR-TI-LFA]
	Bashandy, A., Litkowski, S., Filsfils, C., Francois, P.,		Bashandy, A., Litkowski, S., Filsfils, C., Francois, P.,
	Decraene, B., and D. Voyer, "Topology Independent Fast		Decraene, B., and D. Voyer, "Topology Independent Fast
	Reroute using Segment Routing", Work in Progress,		Reroute using Segment Routing", Work in Progress,
	Internet-Draft, draft-ietf-rtgwg-segment-routing-ti-lfa-		Internet-Draft, draft-ietf-rtgwg-segment-routing-ti-lfa-
End of changes. 3 change blocks.
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