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RFC 8405
Shortest Path First (SPF) Back-Off Delay Algorithm for Link-State IGPs,June 2018
- File formats:
- Status:
- PROPOSED STANDARD
- Authors:
- B. Decraene
S. Litkowski
H. Gredler
A. Lindem
P. Francois
C. Bowers - Stream:
- IETF
- Source:
- rtgwg (rtg)
Cite this RFC:TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC8405
Discuss this RFC: Send questions or comments to the mailing listrtgwg@ietf.org
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Abstract
This document defines a standard algorithm to temporarily postpone or"back off" link-state IGP Shortest Path First (SPF) computations.This reduces the computational load and churn on IGP nodes whenmultiple temporally close network events trigger multiple SPFcomputations.
Having one standard algorithm improves interoperability by reducingthe probability and/or duration of transient forwarding loops duringthe IGP convergence when the IGP reacts to multiple temporally closeIGP events.
For the definition ofStatus,seeRFC 2026.
For the definition ofStream, seeRFC 8729.