draft-ietf-idr-rfd-usable-00.txt   draft-ietf-idr-rfd-usable-01.txt 
Network Working Group C. Pelsser Network Working Group C. Pelsser
Internet-Draft R. Bush Internet-Draft R. Bush
Intended status: Standards Track Internet Initiative Japan Intended status: Standards Track Internet Initiative Japan
Expires: December 21, 2012 K. Patel Expires: June 20, 2013 K. Patel
P. Mohapatra P. Mohapatra
Cisco Systems Cisco Systems
O. Maenel O. Maennel
Loughborough University Loughborough University
June 19, 2012 December 17, 2012
Making Route Flap Damping Usable Making Route Flap Damping Usable
draft-ietf-idr-rfd-usable-00 draft-ietf-idr-rfd-usable-01
Abstract Abstract
Route Flap Damping (RFD) was first proposed to reduce BGP churn in Route Flap Damping (RFD) was first proposed to reduce BGP churn in
routers. Unfortunately, RFD was found to severely penalize sites for routers. Unfortunately, RFD was found to severely penalize sites for
being well-connected because topological richness amplifies the being well-connected because topological richness amplifies the
number of update messages exchanged. Many operators have turned RFD number of update messages exchanged. Many operators have turned RFD
off. Based on experimental measurement, this document recommends off. Based on experimental measurement, this document recommends
adjusting a few RFD algorithmic constants and limits, to reduce the adjusting a few RFD algorithmic constants and limits, to reduce the
high risks with RFD, with the result being damping a non-trivial high risks with RFD, with the result being damping a non-trivial
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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, 2012. This Internet-Draft will expire on June 20, 2013.
Copyright Notice Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the Copyright (c) 2012 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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[ripe378] Panigl, P. and Smith, P., "RIPE Routing Working Group [ripe378] Panigl, P. and Smith, P., "RIPE Routing Working Group
Recommendations On Route-flap Damping", 2006, Recommendations On Route-flap Damping", 2006,
<http://www.ripe.net/ripe/docs/ripe-378>. <http://www.ripe.net/ripe/docs/ripe-378>.
10.2. Informative References 10.2. Informative References
[I-D.shishio-grow-isp-rfd-implement-survey] [I-D.shishio-grow-isp-rfd-implement-survey]
Tsuchiya, S., Kawamura, S., Bush, R., and C. Pelsser, Tsuchiya, S., Kawamura, S., Bush, R., and C. Pelsser,
"Route Flap Damping Deployment Status Survey", "Route Flap Damping Deployment Status Survey",
draft-shishio-grow-isp-rfd-implement-survey-04 (work in draft-shishio-grow-isp-rfd-implement-survey-05 (work in
progress), March 2012. progress), June 2012.
[huston2006] [huston2006]
Huston, G., "BGP Extreme Routing Noise", RIPE 52 , 2006, < Huston, G., "BGP Extreme Routing Noise", RIPE 52 , 2006, <
http://meetings.ripe.net/ripe-52/presentations/ http://meetings.ripe.net/ripe-52/presentations/
ripe52-plenary-bgp-review.pdf>. ripe52-plenary-bgp-review.pdf>.
[ripe178] Barber, T., Doran, S., Karrenberg, D., Panigl, C., and [ripe178] Barber, T., Doran, S., Karrenberg, D., Panigl, C., and
Schmitz, J., "RIPE Routing-WG Recommendation for Schmitz, J., "RIPE Routing-WG Recommendation for
Coordinated Route-flap Damping Parameters", 2001, Coordinated Route-flap Damping Parameters", 2001,
<http://www.ripe.net/ripe/docs/ripe-178>. <http://www.ripe.net/ripe/docs/ripe-178>.
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