Technical Summary
Bidirectional Forwarding Detection (BFD) is a fault detection protocol that can quickly determine a communication failure between two forwarding engines. This document defines a use of the BFD Echo where the local system supports BFD but the adjacent system does not support BFD. BFD Control packet and its processing procedures can be executed over the BFD Echo port where the adjacent system only loops packets back to the local system.
This document updates RFC 5880 by defining a new method of BFD Echo-Only without requiring an implementation to support the full BFD protocol.
Working Group Summary
The document has weak but positive Working Group consensus to advance. This is
somewhat typical of documents progressing through BFD at this point. That said,
the document has had a degree of strong review from the interested parties.
There were several concerns from Greg Mirsky, which were replied to (notably
about the intended status, please refer to the detailed shepherd's write-up).
Document Quality
While neither the I-D nor the shepherd's write-up mention implementations,
Xiao listed some implementations in his reply to Adrian Farrel's RTG-directorate
review at:
https://mailarchive.ietf.org/arch/msg/rtg-dir/3AUX1d5_2wkA6M4D66NqSsrS5M4/
Personnel
The Document Shepherd for this document is Jeffrey Haas. The Responsible
Area Director is Éric Vyncke.