rfc-8029
Detecting Multiprotocol Label Switched (MPLS) Data-Plane Failures
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.
obsoletes
- rfc-4379 — Detecting Multi-Protocol Label Switched (MPLS) Data Plane Failures
- rfc-6424 — Mechanism for Performing Label Switched Path Ping (LSP Ping) over MPLS Tunnels
- rfc-6829 — Label Switched Path (LSP) Ping for Pseudowire Forwarding Equivalence Classes (FECs) Advertised over IPv6
- rfc-7537 — IANA Registries for LSP Ping Code Points
updated by
- rfc-8611 — Label Switched Path (LSP) Ping and Traceroute Multipath Support for Link Aggregation Group (LAG) Interfaces
- rfc-9041 — Updating the MPLS Label Switched Paths (LSPs) Ping Parameters IANA Registry
- rfc-9570 — Deprecating the Use of Router Alert in LSP Ping
updates
- rfc-1122 — Requirements for Internet Hosts - Communication Layers