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Bidirectional Forwarding Detection

Document Type Expired Internet-Draft (individual in rtg area)
Expired & archived
Authors Dave Katz , David M. Ward , Juin-Hwey Chen
Last updated 2015-10-14 (Latest revision 2004-05-19)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
Stream WG state (None)
Document shepherd (None)
IESG IESG state Expired (IESG: Dead)
Action Holders
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD Alex D. Zinin
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document describes a protocol intended to detect faults in the bidirectional path between two forwarding engines, including interfaces, data link(s), and to the extent possible the forwarding engines themselves, with potentially very low latency. It operates independently of media, data protocols, and routing protocols. Comments on this draft should be directed to


Dave Katz
David M. Ward
Juin-Hwey Chen

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)