Common Interval Support in Bidirectional Forwarding Detection

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Publisher: IETF
Doc Type: Informational
Pages: 8
Abstract: Bidirectional Forwarding Detection (BFD) requires that messages be transmitted at regular intervals and provides a way to negotiate the interval used by BFD peers. Some BFD implementations may be restricted to only support several interval values. When such BFD implementations speak to each other, there is a possibility of two sides not being able to find a common value for the interval to run BFD sessions. This document updates RFC 5880 by defining a small set of interval values for BFD that we call "Common Intervals" and recommends implementations to support the defined intervals. This solves the problem of finding an interval value that both BFD speakers can support while allowing a simplified implementation as seen for hardware-based BFD. It does not restrict an implementation from supporting more intervals in addition to the Common Intervals.
Publication Date: 2014-12-01
Status Note: Informational
DOI: 10.17487/RFC7419
Link: https://doi.org/10.17487/RFC7419
Author(s): Nobo Akiya
Marc Binderberger
Greg Mirsky
Keyword(s): BFD

Latest version of IETF RFC 7419

Document Versions — IETF RFC 7419

▶ IETF RFC 7419 (2014-12-01)

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Normative Reference(s)

IETF RFC 5880 [Active*]

Bibliographic Reference(s)

Telcordia Technologies, Inc., "Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria", GR-253-CORE Issue 05, October 2009. EXTERNAL
T-REC-G.8013.2013 — Y.1731 EXTERNAL

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<span class="citation"><cite>IETF RFC 7419</cite>, Common Interval Support in Bidirectional Forwarding Detection. Available at <a href="https://doi.org/10.17487/RFC7419" target="_blank" rel="noopener">https://doi.org/10.17487/RFC7419</a></span>

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IETF RFC 7419, Common Interval Support in Bidirectional Forwarding Detection
doi: 10.17487/RFC7419
url: https://doi.org/10.17487/RFC7419

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<cite id="bib-rfc7419">IETF RFC 7419</cite>, Common Interval Support in Bidirectional Forwarding Detection
<span class="doi">10.17487/RFC7419</span>
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