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Status:

PROPOSED STANDARD

Updates:

RFC 2328

Authors:

K. Talaulikar, Ed.
P. Psenak
A. Fu
M. Rajesh

Stream:

IETF

Source:

lsr (rtg)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC9355

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Other actions:Submit Errata  | Find IPR Disclosures from the IETF  | View History of RFC 9355

Abstract

This document specifies the extensions to OSPF that enable an OSPFrouter to signal the requirement for a Bidirectional ForwardingDetection (BFD) session prior to adjacency formation. Link-LocalSignaling (LLS) is used to advertise the requirement for strict-modeBFD session establishment for an OSPF adjacency. If both OSPFneighbors advertise BFD strict-mode, adjacency formation will beblocked until a BFD session has been successfully established.

This document updates RFC 2328 by augmenting the OSPF neighbor statemachine with a check for BFD session up before progression from Initto 2-Way state when operating in OSPF BFD strict-mode.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.