RFC 7196

Making Route Flap Damping Usable, May 2014

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C. Pelsser
R. Bush
K. Patel
P. Mohapatra
O. Maennel
idr (rtg)

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DOI:  https://doi.org/10.17487/RFC7196

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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.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.

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