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RFC 9779
Title: Performance Measurement for Segment Routing
Networks with the MPLS Data Plane
Author: R. Gandhi, Ed.,
C. Filsfils,
D. Voyer,
S. Salsano,
M. Chen
Status: Standards Track
Stream: IETF
Date: May 2025
Mailbox: [email protected],
[email protected],
[email protected],
[email protected],
[email protected]
Pages: 20
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-mpls-rfc6374-sr-17.txt
URL: https://www.rfc-editor.org/info/rfc9779
DOI: 10.17487/RFC9779
This document specifies the application of the MPLS loss and delay
measurement techniques (originally defined in RFCs 6374, 7876, and
9341) within Segment Routing (SR) networks that utilize the MPLS data
plane, also referred to as Segment Routing over MPLS (SR-MPLS). SR
enables the forwarding of packets through an ordered list of
instructions, known as segments, which are imposed at the ingress
node. This document defines the procedures and extensions necessary
to perform accurate measurement of packet loss and delay in SR-MPLS
environments, ensuring that network operators can effectively measure
and maintain the quality of service across their SR-based MPLS
networks. This includes coverage of links and end-to-end SR-MPLS
paths, as well as SR Policies.
This document is a product of the Multiprotocol Label Switching Working Group
of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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