< draft-ietf-teas-sf-aware-topo-model-02.txt		draft-ietf-teas-sf-aware-topo-model-03.txt >
	Network Working Group I. Bryskin		Network Working Group I. Bryskin
	Internet-Draft Huawei Technologies		Internet-Draft Huawei Technologies
	Intended status: Informational X. Liu		Intended status: Informational X. Liu
	Expires: March 25, 2019 Volta Networks		Expires: September 12, 2019 Volta Networks
	Y. Lee		Y. Lee
	J. Guichard		J. Guichard
	Huawei Technologies		Huawei Technologies
	L. Contreras		L. Contreras
	Telefonica		Telefonica
	D. Ceccarelli		D. Ceccarelli
	Ericsson		Ericsson
	J. Tantsura		J. Tantsura
	Nuage Networks		Apstra Networks
	September 21, 2018
			March 11, 2019
	SF Aware TE Topology YANG Model		SF Aware TE Topology YANG Model
	draft-ietf-teas-sf-aware-topo-model-02		draft-ietf-teas-sf-aware-topo-model-03
	Abstract		Abstract
	This document describes a YANG data model for TE network topologies		This document describes a YANG data model for TE network topologies
	that are network service and function aware.		that are network service and function aware.
	Status of This Memo		Status of This Memo
	This Internet-Draft is submitted in full conformance with the		This Internet-Draft is submitted in full conformance with the
	provisions of BCP 78 and BCP 79.		provisions of BCP 78 and BCP 79.
	skipping to change at page 1, line 41 ¶		skipping to change at page 1, line 41 ¶
	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 March 25, 2019.		This Internet-Draft will expire on September 2019.
	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		Provisions Relating to IETF Documents
	(https://trustee.ietf.org/license-info) in effect on the date of		(https://trustee.ietf.org/license-info) in effect on the date of
	publication of this document. Please review these documents		publication of this document. Please review these documents
	skipping to change at page 2, line 28 ¶		skipping to change at page 2, line 28 ¶
	2. Modeling Considerations . . . . . . . . . . . . . . . . . . . 6		2. Modeling Considerations . . . . . . . . . . . . . . . . . . . 6
	3. Model Structure . . . . . . . . . . . . . . . . . . . . . . . 7		3. Model Structure . . . . . . . . . . . . . . . . . . . . . . . 7
	4. YANG Modules . . . . . . . . . . . . . . . . . . . . . . . . 8		4. YANG Modules . . . . . . . . . . . . . . . . . . . . . . . . 8
	5. Model Structure . . . . . . . . . . . . . . . . . . . . . . . 15		5. Model Structure . . . . . . . . . . . . . . . . . . . . . . . 15
	6. YANG Modules . . . . . . . . . . . . . . . . . . . . . . . . 17		6. YANG Modules . . . . . . . . . . . . . . . . . . . . . . . . 17
	7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 22		7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 22
	8. Security Considerations . . . . . . . . . . . . . . . . . . . 23		8. Security Considerations . . . . . . . . . . . . . . . . . . . 23
	9. References . . . . . . . . . . . . . . . . . . . . . . . . . 23		9. References . . . . . . . . . . . . . . . . . . . . . . . . . 23
	9.1. Normative References . . . . . . . . . . . . . . . . . . 23		9.1. Normative References . . . . . . . . . . . . . . . . . . 23
	9.2. Informative References . . . . . . . . . . . . . . . . . 24		9.2. Informative References . . . . . . . . . . . . . . . . . 24
	9.3. Normative References . . . . . . . . . . . . . . . . . . 25
	Appendix A. Companion YANG Model for Non-NMDA Compliant		Appendix A. Companion YANG Model for Non-NMDA Compliant
	Implementations . . . . . . . . . . . . . . . . . . 26		Implementations . . . . . . . . . . . . . . . . . . 26
	A.1. SF Aware TE Topology State Module . . . . . . . . . . . . 26		A.1. SF Aware TE Topology State Module . . . . . . . . . . . . 26
	Appendix B. Data Examples . . . . . . . . . . . . . . . . . . . 28		Appendix B. Data Examples . . . . . . . . . . . . . . . . . . . 28
	B.1. A Topology with Multiple Connected Network Functions . . 28		B.1. A Topology with Multiple Connected Network Functions . . 28
	B.2. A Topology with an Encapsulated Network Service . . . . . 33		B.2. A Topology with an Encapsulated Network Service . . . . . 33
	Appendix C. Use Cases for SF Aware Topology Models . . . . . . . 37		Appendix C. Use Cases for SF Aware Topology Models . . . . . . . 37
	C.1. Exporting SF/NF Information to Network Clients and Other		C.1. Exporting SF/NF Information to Network Clients and Other
	Network SDN Controllers . . . . . . . . . . . . . . . . . 37		Network SDN Controllers . . . . . . . . . . . . . . . . . 37
	C.2. Flat End-to-end SFCs Managed on Multi-domain Networks . 38		C.2. Flat End-to-end SFCs Managed on Multi-domain Networks . 38
	skipping to change at page 24, line 41 ¶		skipping to change at page 24, line 41 ¶
	O. Dios, "YANG Data Model for Traffic Engineering (TE)		O. Dios, "YANG Data Model for Traffic Engineering (TE)
	Topologies", draft-ietf-teas-yang-te-topo-18 (work in		Topologies", draft-ietf-teas-yang-te-topo-18 (work in
	progress), June 2018.		progress), June 2018.
	[I-D.ietf-netmod-revised-datastores]		[I-D.ietf-netmod-revised-datastores]
	Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K.,		Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K.,
	and R. Wilton, "Network Management Datastore		and R. Wilton, "Network Management Datastore
	Architecture", draft-ietf-netmod-revised-datastores-10		Architecture", draft-ietf-netmod-revised-datastores-10
	(work in progress), January 2018.		(work in progress), January 2018.
	9.2. Informative References
	[RFC7498] Quinn, P., Ed. and T. Nadeau, Ed., "Problem Statement for
	Service Function Chaining", RFC 7498,
	DOI 10.17487/RFC7498, April 2015,
	<https://www.rfc-editor.org/info/rfc7498>.
	[RFC7665] Halpern, J., Ed. and C. Pignataro, Ed., "Service Function
	Chaining (SFC) Architecture", RFC 7665,
	DOI 10.17487/RFC7665, October 2015,
	<https://www.rfc-editor.org/info/rfc7665>.
	[I-D.ietf-netmod-yang-tree-diagrams]
	Bjorklund, M. and L. Berger, "YANG Tree Diagrams", draft-
	ietf-netmod-yang-tree-diagrams-06 (work in progress),
	February 2018.
	9.3. Normative References
	[ETSI-NFV-TERM]		[ETSI-NFV-TERM]
	ETSI, "Network Functions Virtualisation (NFV); Terminology		ETSI, "Network Functions Virtualisation (NFV); Terminology
	for Main Concepts in NFV", ETSI GS NFV 003 V1.2.1,		for Main Concepts in NFV", ETSI GS NFV 003 V1.2.1,
	December 2014.		December 2014.
	[I-D.ietf-teas-yang-te]		[I-D.ietf-teas-yang-te]
	Saad, T., Gandhi, R., Liu, X., Beeram, V., Shah, H., and		Saad, T., Gandhi, R., Liu, X., Beeram, V., Shah, H., and
	I. Bryskin, "A YANG Data Model for Traffic Engineering		I. Bryskin, "A YANG Data Model for Traffic Engineering
	Tunnels and Interfaces", draft-ietf-teas-yang-te-16 (work		Tunnels and Interfaces", draft-ietf-teas-yang-te-16 (work
	in progress), July 2018.		in progress), July 2018.
	skipping to change at page 26, line 5 ¶		skipping to change at page 25, line 36 ¶
	3GPP, "Study on management and orchestration of network		3GPP, "Study on management and orchestration of network
	slicing for next generation network", 3GPP TR 28.801		slicing for next generation network", 3GPP TR 28.801
	V2.0.0, September 2017,		V2.0.0, September 2017,
	<http://www.3gpp.org/ftp/Specs/html-info/28801.htm>.		<http://www.3gpp.org/ftp/Specs/html-info/28801.htm>.
	[RFC8453] Ceccarelli, D., Ed. and Y. Lee, Ed., "Framework for		[RFC8453] Ceccarelli, D., Ed. and Y. Lee, Ed., "Framework for
	Abstraction and Control of TE Networks (ACTN)", RFC 8453,		Abstraction and Control of TE Networks (ACTN)", RFC 8453,
	DOI 10.17487/RFC8453, August 2018,		DOI 10.17487/RFC8453, August 2018,
	<https://www.rfc-editor.org/info/rfc8453>.		<https://www.rfc-editor.org/info/rfc8453>.
			9.2. Informative References
			[RFC7498] Quinn, P., Ed. and T. Nadeau, Ed., "Problem Statement for
			Service Function Chaining", RFC 7498,
			DOI 10.17487/RFC7498, April 2015,
			<https://www.rfc-editor.org/info/rfc7498>.
			[RFC7665] Halpern, J., Ed. and C. Pignataro, Ed., "Service Function
			Chaining (SFC) Architecture", RFC 7665,
			DOI 10.17487/RFC7665, October 2015,
			<https://www.rfc-editor.org/info/rfc7665>
			[I-D.ietf-netmod-yang-tree-diagrams]
			Bjorklund, M. and L. Berger, "YANG Tree Diagrams", draft-
			ietf-netmod-yang-tree-diagrams-06 (work in progress),
			February 2018.
	Appendix A. Companion YANG Model for Non-NMDA Compliant Implementations		Appendix A. Companion YANG Model for Non-NMDA Compliant Implementations
	The YANG module ietf-te-topology-sf defined in this document is		The YANG module ietf-te-topology-sf defined in this document is
	designed to be used in conjunction with implementations that support		designed to be used in conjunction with implementations that support
	the Network Management Datastore Architecture (NMDA) defined in		the Network Management Datastore Architecture (NMDA) defined in
	[I-D.ietf-netmod-revised-datastores]. In order to allow		[I-D.ietf-netmod-revised-datastores]. In order to allow
	implementations to use the model even in cases when NMDA is not		implementations to use the model even in cases when NMDA is not
	supported, the following companion module, ietf-te-topology-sf-state,		supported, the following companion module, ietf-te-topology-sf-state,
	is defined as state model, which mirrors the module ietf-te-topology-		is defined as state model, which mirrors the module ietf-te-topology-
	sf defined earlier in this document. However, all data nodes in the		sf defined earlier in this document. However, all data nodes in the
	skipping to change at page 49, line 10 ¶		skipping to change at page 49, line 10 ¶
	Luis Miguel Contreras Murillo		Luis Miguel Contreras Murillo
	Telefonica		Telefonica
	EMail: luismiguel.contrerasmurillo@telefonica.com		EMail: luismiguel.contrerasmurillo@telefonica.com
	Daniele Ceccarelli		Daniele Ceccarelli
	Ericsson		Ericsson
	EMail: daniele.ceccarelli@ericsson.com		EMail: daniele.ceccarelli@ericsson.com
	Jeff Tantsura		Jeff Tantsura
	Nuage Networks		Apstra Networks
	EMail: jefftant.ietf@gmail.com		EMail: jefftant.ietf@gmail.com
End of changes. 9 change blocks.
	27 lines changed or deleted		25 lines changed or added
This html diff was produced by rfcdiff 1.48. The latest version is available from http://tools.ietf.org/tools/rfcdiff/