< draft-ietf-rtgwg-backoff-algo-05.txt		draft-ietf-rtgwg-backoff-algo-06.txt >
	Network Working Group B. Decraene		Network Working Group B. Decraene
	Internet-Draft Orange		Internet-Draft Orange
	Intended status: Standards Track S. Litkowski		Intended status: Standards Track S. Litkowski
	Expires: November 1, 2017 Orange Business Service		Expires: April 25, 2018 Orange Business Service
	H. Gredler		H. Gredler
	RtBrick Inc		RtBrick Inc
	A. Lindem		A. Lindem
	Cisco Systems		Cisco Systems
	P. Francois		P. Francois
	C. Bowers		C. Bowers
	Juniper Networks, Inc.		Juniper Networks, Inc.
	April 30, 2017		October 22, 2017
	SPF Back-off algorithm for link state IGPs		SPF Back-off algorithm for link state IGPs
	draft-ietf-rtgwg-backoff-algo-05		draft-ietf-rtgwg-backoff-algo-06
	Abstract		Abstract
	This document defines a standard algorithm to back-off link-state IGP		This document defines a standard algorithm to back-off link-state IGP
	SPF computations.		SPF computations.
	Having one standard algorithm improves interoperability by reducing		Having one standard algorithm improves interoperability by reducing
	the probability and/or duration of transient forwarding loops during		the probability and/or duration of transient forwarding loops during
	the IGP convergence when the IGP reacts to multiple temporally close		the IGP convergence when the IGP reacts to multiple temporally close
	IGP events.		IGP events.
	skipping to change at page 1, line 44 ¶		skipping to change at page 1, line 44 ¶
	document are to be interpreted as described in [RFC2119].		document are to be interpreted as described in [RFC2119].
	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.
	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 http://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 November 1, 2017.		This Internet-Draft will expire on April 25, 2018.
	Copyright Notice		Copyright Notice
	Copyright (c) 2017 IETF Trust and the persons identified as the		Copyright (c) 2017 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
	(http://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
	carefully, as they describe your rights and restrictions with respect		carefully, as they describe your rights and restrictions with respect
	to this document. Code Components extracted from this document must		to this document. Code Components extracted from this document must
	include Simplified BSD License text as described in Section 4.e of		include Simplified BSD License text as described in Section 4.e of
	the Trust Legal Provisions and are provided without warranty as		the Trust Legal Provisions and are provided without warranty as
	described in the Simplified BSD License.		described in the Simplified BSD License.
	Table of Contents		Table of Contents
	1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2		1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
	skipping to change at page 10, line 51 ¶		skipping to change at page 10, line 51 ¶
	and Alexander Vainshtein for the discussions and comments related to		and Alexander Vainshtein for the discussions and comments related to
	this document.		this document.
	12. References		12. References
	12.1. Normative References		12.1. Normative References
	[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate		[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
	Requirement Levels", BCP 14, RFC 2119,		Requirement Levels", BCP 14, RFC 2119,
	DOI 10.17487/RFC2119, March 1997,		DOI 10.17487/RFC2119, March 1997,
	<http://www.rfc-editor.org/info/rfc2119>.		<https://www.rfc-editor.org/info/rfc2119>.
	12.2. Informative References		12.2. Informative References
	[I-D.ietf-isis-yang-isis-cfg]		[I-D.ietf-isis-yang-isis-cfg]
	Litkowski, S., Yeung, D., Lindem, A., Zhang, Z., and L.		Litkowski, S., Yeung, D., Lindem, A., Zhang, Z., and L.
	Lhotka, "YANG Data Model for IS-IS protocol", draft-ietf-		Lhotka, "YANG Data Model for IS-IS protocol", draft-ietf-
	isis-yang-isis-cfg-17 (work in progress), March 2017.		isis-yang-isis-cfg-18 (work in progress), July 2017.
	[I-D.ietf-ospf-yang]		[I-D.ietf-ospf-yang]
	Yeung, D., Qu, Y., Zhang, Z., Chen, I., and A. Lindem,		Yeung, D., Qu, Y., Zhang, Z., Chen, I., and A. Lindem,
	"Yang Data Model for OSPF Protocol", draft-ietf-ospf-		"Yang Data Model for OSPF Protocol", draft-ietf-ospf-
	yang-07 (work in progress), March 2017.		yang-08 (work in progress), July 2017.
	[I-D.ietf-rtgwg-spf-uloop-pb-statement]		[I-D.ietf-rtgwg-spf-uloop-pb-statement]
	Litkowski, S., Decraene, B., and M. Horneffer, "Link State		Litkowski, S., Decraene, B., and M. Horneffer, "Link State
	protocols SPF trigger and delay algorithm impact on IGP		protocols SPF trigger and delay algorithm impact on IGP
	micro-loops", draft-ietf-rtgwg-spf-uloop-pb-statement-03		micro-loops", draft-ietf-rtgwg-spf-uloop-pb-statement-04
	(work in progress), March 2017.		(work in progress), May 2017.
	[ISO10589-Second-Edition]		[ISO10589-Second-Edition]
	International Organization for Standardization,		International Organization for Standardization,
	"Intermediate system to Intermediate system intra-domain		"Intermediate system to Intermediate system intra-domain
	routeing information exchange protocol for use in		routeing information exchange protocol for use in
	conjunction with the protocol for providing the		conjunction with the protocol for providing the
	connectionless-mode Network Service (ISO 8473)", ISO/		connectionless-mode Network Service (ISO 8473)", ISO/
	IEC 10589:2002, Second Edition, Nov 2002.		IEC 10589:2002, Second Edition, Nov 2002.
	[RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328,		[RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328,
	DOI 10.17487/RFC2328, April 1998,		DOI 10.17487/RFC2328, April 1998,
	<http://www.rfc-editor.org/info/rfc2328>.		<https://www.rfc-editor.org/info/rfc2328>.
	[RFC5715] Shand, M. and S. Bryant, "A Framework for Loop-Free		[RFC5715] Shand, M. and S. Bryant, "A Framework for Loop-Free
	Convergence", RFC 5715, DOI 10.17487/RFC5715, January		Convergence", RFC 5715, DOI 10.17487/RFC5715, January
	2010, <http://www.rfc-editor.org/info/rfc5715>.		2010, <https://www.rfc-editor.org/info/rfc5715>.
	[RFC6976] Shand, M., Bryant, S., Previdi, S., Filsfils, C.,		[RFC6976] Shand, M., Bryant, S., Previdi, S., Filsfils, C.,
	Francois, P., and O. Bonaventure, "Framework for Loop-Free		Francois, P., and O. Bonaventure, "Framework for Loop-Free
	Convergence Using the Ordered Forwarding Information Base		Convergence Using the Ordered Forwarding Information Base
	(oFIB) Approach", RFC 6976, DOI 10.17487/RFC6976, July		(oFIB) Approach", RFC 6976, DOI 10.17487/RFC6976, July
	2013, <http://www.rfc-editor.org/info/rfc6976>.		2013, <https://www.rfc-editor.org/info/rfc6976>.
	Authors' Addresses		Authors' Addresses
	Bruno Decraene		Bruno Decraene
	Orange		Orange
	Email: bruno.decraene@orange.com		Email: bruno.decraene@orange.com
	Stephane Litkowski		Stephane Litkowski
	Orange Business Service		Orange Business Service
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