[Idr] RFC 7196 on Making Route Flap Damping Usable
rfc-editor@rfc-editor.org Fri, 16 May 2014 22:03 UTC
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Subject: [Idr] RFC 7196 on Making Route Flap Damping Usable
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A new Request for Comments is now available in online RFC libraries.
RFC 7196
Title: Making Route Flap Damping Usable
Author: C. Pelsser, R. Bush,
K. Patel, P. Mohapatra,
O. Maennel
Status: Standards Track
Stream: IETF
Date: May 2014
Mailbox: cristel@iij.ad.jp,
randy@psg.com,
keyupate@cisco.com,
mpradosh@yahoo.com,
o@maennel.net
Pages: 8
Characters: 15202
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-idr-rfd-usable-04.txt
URL: http://www.rfc-editor.org/rfc/rfc7196.txt
Route Flap Damping (RFD) was first proposed to reduce BGP churn in
routers. Unfortunately, RFD was found to severely penalize sites for
being well connected because topological richness amplifies the
number of update messages exchanged. Many operators have turned RFD
off. Based on experimental measurement, this document recommends
adjusting a few RFD algorithmic constants and limits in order to
reduce the high risks with RFD. The result is damping a non-trivial
amount of long-term churn without penalizing well-behaved prefixes'
normal convergence process.
This document is a product of the Inter-Domain Routing Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements. Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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