BGP - Link State Extensions for Seamless Bidirectional Forwarding Detection
RFC 9247, “BGP - Link State Extensions for Seamless Bidirectional Forwarding Detection”, is a Proposed Standard document published in June 2022 by Z. Li, S. Zhuang, K. Talaulikar, S. Aldrin, J. Tantsura, G. Mirsky. The canonical text is published by the RFC Editor.
Abstract
Seamless Bidirectional Forwarding Detection (S-BFD) defines a simplified mechanism to use Bidirectional Forwarding Detection (BFD) with large portions of negotiation aspects eliminated, thus providing benefits such as quick provisioning as well as improved control and flexibility to network nodes initiating the path monitoring. The link-state routing protocols (IS-IS and OSPF) have been extended to advertise the S-BFD Discriminators.
This document defines extensions to the BGP - Link State (BGP-LS) address family to carry the S-BFD Discriminators' information via BGP.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 9247 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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