BFD Encapsulated in Large Packets

Document Type Expired Internet-Draft (bfd WG)
Authors Jeffrey Haas  , Albert Fu 
Last updated 2020-05-04 (latest revision 2019-11-01)
Replaces draft-haas-bfd-large-packets
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state In WG Last Call
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Bidirectional Forwarding Detection (BFD) protocol is commonly used to verify connectivity between two systems. BFD packets are typically very small. It is desirable in some circumstances to know that not only is the path between two systems reachable, but also that it is capable of carrying a payload of a particular size. This document discusses thoughts on how to implement such a mechanism using BFD in Asynchronous mode.


Jeffrey Haas (
Albert Fu (

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