RFC 9779 on Performance Measurement for Segment Routing Networks with the MPLS Data Plane

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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:    rgandhi@cisco.com,
                    cfilsfil@cisco.com,
                    davoyer@cisco.com,
                    stefano.salsano@uniroma2.it,
                    mach.chen@huawei.com
        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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