rfc9903v3.txt		rfc9903.txt
	Internet Engineering Task Force (IETF) Y. Qu		Internet Engineering Task Force (IETF) Y. Qu
	Request for Comments: 9903 Futurewei Technologies		Request for Comments: 9903 Futurewei Technologies
	Category: Standards Track A. Lindem		Category: Standards Track A. Lindem
	ISSN: 2070-1721 LabN Consulting, L.L.C.		ISSN: 2070-1721 LabN Consulting, L.L.C.
	J. Zhang		J. Zhang
	Juniper Networks		Juniper Networks
	I. Chen		I. Chen
	Red Hat, Inc.		Red Hat, Inc.
	November 2025		December 2025
	A YANG Data Model for OSPF Segment Routing over the MPLS Data Plane		A YANG Data Model for OSPF Segment Routing over the MPLS Data Plane
	Abstract		Abstract
	This document defines a YANG data model that can be used to manage		This document defines a YANG data model that can be used to manage
	OSPF extensions for Segment Routing over the MPLS data plane.		OSPF extensions for Segment Routing over the MPLS data plane.
	Status of This Memo		Status of This Memo
	skipping to change at line 53 ¶		skipping to change at line 53 ¶
	to this document. Code Components extracted from this document must		to this document. Code Components extracted from this document must
	include Revised BSD License text as described in Section 4.e of the		include Revised BSD License text as described in Section 4.e of the
	Trust Legal Provisions and are provided without warranty as described		Trust Legal Provisions and are provided without warranty as described
	in the Revised BSD License.		in the Revised BSD License.
	Table of Contents		Table of Contents
	1. Overview		1. Overview
	1.1. Requirements Language		1.1. Requirements Language
	1.2. Tree Diagrams		1.2. Tree Diagrams
	2. OSPF Segment Routing over MPLS YANG Data Model Scope		2. Design of the YANG Module for OSPF MPLS Segment Routing
	3. OSPF Segment Routing over MPLS YANG Module		3. OSPF Segment Routing over MPLS YANG Module
	4. Security Considerations		4. Security Considerations
	5. IANA Considerations		5. IANA Considerations
	6. References		6. References
	6.1. Normative References		6.1. Normative References
	6.2. Informative References		6.2. Informative References
	Appendix A. A Configuration Example		Appendix A. A Configuration Example
	Appendix B. Full Tree Diagram		Appendix B. Full Tree Diagram
	Acknowledgements		Acknowledgements
	Authors' Addresses		Authors' Addresses
	skipping to change at line 86 ¶		skipping to change at line 86 ¶
	"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and		"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
	"OPTIONAL" in this document are to be interpreted as described in		"OPTIONAL" in this document are to be interpreted as described in
	BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all		BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
	capitals, as shown here.		capitals, as shown here.
	1.2. Tree Diagrams		1.2. Tree Diagrams
	This document uses the graphical representation of a data model as		This document uses the graphical representation of a data model as
	defined in [RFC8340].		defined in [RFC8340].
	2. OSPF Segment Routing over MPLS YANG Data Model Scope		2. Design of the YANG Module for OSPF MPLS Segment Routing
	The YANG data model in this document consists of a single YANG		The YANG data model in this document consists of a single YANG
	module, "ietf-ospf-sr-mpls". The "ietf-ospf-sr-mpls" YANG module		module, "ietf-ospf-sr-mpls". The "ietf-ospf-sr-mpls" YANG module
	includes OSPF Segment Routing extensions for the MPLS data plane for		includes OSPF Segment Routing extensions for the MPLS data plane for
	both OSPFv2 [RFC8665] and OSPFv3 [RFC8666].		both OSPFv2 [RFC8665] and OSPFv3 [RFC8666].
	The "ietf-ospf-sr-mpls" YANG module requires support for the base		The "ietf-ospf-sr-mpls" YANG module requires support for the base
	Segment Routing module [RFC9020], which defines the global Segment		Segment Routing module [RFC9020], which defines the global Segment
	Routing configuration independent of any specific routing protocol		Routing configuration independent of any specific routing protocol
	configuration, and support of the OSPF base model [RFC9129], which		configuration, and support of the OSPF base model [RFC9129], which
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