Detecting Multiprotocol Label Switched Data-Plane Failures
RFC 8029, “Detecting Multiprotocol Label Switched Data-Plane Failures”, is a Proposed Standard document published in March 2017 by K. Kompella, G. Swallow, C. Pignataro, N. Kumar, S. Aldrin, M. Chen. It updates RFC 1122. It obsoletes RFC 4379, RFC 6424, RFC 6829, RFC 7537. It has since been updated by RFC 8611, RFC 9041, RFC 9570. The canonical text is published by the RFC Editor.
Abstract
This document describes a simple and efficient mechanism to detect data-plane failures in Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs). It defines a probe message called an "MPLS echo request" and a response message called an "MPLS echo reply" for returning the result of the probe. The MPLS echo request is intended to contain sufficient information to check correct operation of the data plane and to verify the data plane against the control plane, thereby localizing faults.
This document obsoletes RFCs 4379, 6424, 6829, and 7537, and updates RFC 1122.
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 8029 is hosted at rfc-editor.org. Available in TXT,HTML.
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