draft-ietf-rtgwg-backoff-algo-01.txt   draft-ietf-rtgwg-backoff-algo-02.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: December 21, 2015 Orange Business Service Expires: June 19, 2016 Orange Business Service
H. Gredler H. Gredler
Juniper Networks, Inc. Private Contributor
A. Lindem A. Lindem
Cisco Systems
P. Francois P. Francois
IMDEA Networks Institute Cisco Systems
June 19, 2015 December 17, 2015
SPF Back-off algorithm for link state IGPs SPF Back-off algorithm for link state IGPs
draft-ietf-rtgwg-backoff-algo-01 draft-ietf-rtgwg-backoff-algo-02
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 proximate IGP the IGP convergence when the IGP reacts to multiple proximate IGP
events. events.
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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 http://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 December 21, 2015. This Internet-Draft will expire on June 19, 2016.
Copyright Notice Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the Copyright (c) 2015 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 (http://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
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10. Acknowledgements 10. Acknowledgements
We would like to acknowledge Les Ginsberg, Uma Chunduri, and Mike We would like to acknowledge Les Ginsberg, Uma Chunduri, and Mike
Shand for the discussions and comments related to this document. Shand for the discussions and comments related to this document.
11. References 11. References
11.1. Normative References 11.1. 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, March 1997. Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>.
11.2. Informative References 11.2. Informative References
[I-D.ietf-rtgwg-spf-uloop-pb-statement] [I-D.ietf-rtgwg-spf-uloop-pb-statement]
Litkowski, S., "Link State protocols SPF trigger and delay Litkowski, S., Decraene, B., and M. Horneffer, "Link State
algorithm impact on IGP microloops", draft-ietf-rtgwg-spf- protocols SPF trigger and delay algorithm impact on IGP
uloop-pb-statement-00 (work in progress), May 2015. micro-loops", draft-ietf-rtgwg-spf-uloop-pb-statement-02
(work in progress), December 2015.
[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/IEC connectionless-mode Network Service (ISO 8473)", ISO/
10589:2002, Second Edition, Nov 2002. IEC 10589:2002, Second Edition, Nov 2002.
[RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328, April 1998. [RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328,
DOI 10.17487/RFC2328, April 1998,
<http://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, January 2010. Convergence", RFC 5715, DOI 10.17487/RFC5715, January
2010, <http://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, July 2013. (oFIB) Approach", RFC 6976, DOI 10.17487/RFC6976, July
2013, <http://www.rfc-editor.org/info/rfc6976>.
Authors' Addresses Authors' Addresses
Bruno Decraene Bruno Decraene
Orange Orange
38 rue du General Leclerc 38 rue du General Leclerc
Issy Moulineaux cedex 9 92794 Issy Moulineaux cedex 9 92794
France France
Email: bruno.decraene@orange.com Email: bruno.decraene@orange.com
Stephane Litkowski Stephane Litkowski
Orange Business Service Orange Business Service
Email: stephane.litkowski@orange.com Email: stephane.litkowski@orange.com
Hannes Gredler Hannes Gredler
Juniper Networks, Inc. Private Contributor
1194 N. Mathilda Ave.
Sunnyvale, CA 94089
US
Email: hannes@juniper.net Email: hannes@gredler.at
Acee Lindem Acee Lindem
Cisco Systems Cisco Systems
301 Midenhall Way 301 Midenhall Way
Cary, NC 27513 Cary, NC 27513
USA USA
Email: acee@cisco.com Email: acee@cisco.com
Pierre Francois Pierre Francois
IMDEA Networks Institute Cisco Systems
1194 N. Mathilda Ave.
Leganes
ES
Email: pierre.francois@imdea.org Email: pifranco@cisco.com
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