rfc9790v5.txt		rfc9790.txt
	skipping to change at line 13 ¶		skipping to change at line 13 ¶
	Request for Comments: 9790 Juniper Networks		Request for Comments: 9790 Juniper Networks
	Updates: 4928 S. Bryant		Updates: 4928 S. Bryant
	Category: Standards Track University of Surrey 5GIC		Category: Standards Track University of Surrey 5GIC
	ISSN: 2070-1721 M. Bocci		ISSN: 2070-1721 M. Bocci
	Nokia		Nokia
	G. Mirsky, Ed.		G. Mirsky, Ed.
	Ericsson		Ericsson
	L. Andersson		L. Andersson
	J. Dong		J. Dong
	Huawei Technologies		Huawei Technologies
	June 2025		July 2025
	IANA Registry and Processing Recommendations for the First Nibble		IANA Registry and Processing Recommendations for the First Nibble
	Following a Label Stack		Following a Label Stack
	Abstract		Abstract
	This document creates a new IANA registry (called the "Post-Stack		This document creates a new IANA registry (called the "Post-Stack
	First Nibble" registry) for the first nibble (4-bit field)		First Nibble" registry) for the first nibble (4-bit field)
	immediately following an MPLS label stack. Furthermore, this		immediately following an MPLS label stack. Furthermore, this
	document presents some requirements for registering new values and		document presents some requirements for registering new values and
	skipping to change at line 646 ¶		skipping to change at line 646 ¶
	DOI 10.17487/RFC8469, November 2018,		DOI 10.17487/RFC8469, November 2018,
	<https://www.rfc-editor.org/info/rfc8469>.		<https://www.rfc-editor.org/info/rfc8469>.
	[RFC8964] Varga, B., Ed., Farkas, J., Berger, L., Malis, A., Bryant,		[RFC8964] Varga, B., Ed., Farkas, J., Berger, L., Malis, A., Bryant,
	S., and J. Korhonen, "Deterministic Networking (DetNet)		S., and J. Korhonen, "Deterministic Networking (DetNet)
	Data Plane: MPLS", RFC 8964, DOI 10.17487/RFC8964, January		Data Plane: MPLS", RFC 8964, DOI 10.17487/RFC8964, January
	2021, <https://www.rfc-editor.org/info/rfc8964>.		2021, <https://www.rfc-editor.org/info/rfc8964>.
	[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, May 2025,		DOI 10.17487/RFC9789, July 2025,
	<https://www.rfc-editor.org/info/rfc9789>.		<https://www.rfc-editor.org/info/rfc9789>.
	5.2. Informative References		5.2. Informative References
	[MNA-PS-HDR]		[MNA-PS-HDR]
	Rajamanickam, J., Ed., Gandhi, R., Ed., Zigler, R., Li,		Rajamanickam, J., Ed., Gandhi, R., Ed., Zigler, R., Li,
	T., and J. Dong, "Post-Stack MPLS Network Action (MNA)		T., and J. Dong, "Post-Stack MPLS Network Action (MNA)
	Solution", Work in Progress, Internet-Draft, draft-ietf-		Solution", Work in Progress, Internet-Draft, draft-ietf-
	mpls-mna-ps-hdr-01, 30 May 2025,		mpls-mna-ps-hdr-01, 30 May 2025,
	<https://datatracker.ietf.org/doc/html/draft-ietf-mpls-		<https://datatracker.ietf.org/doc/html/draft-ietf-mpls-
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