File formats:

Status:

PROPOSED STANDARD

Updated by:

RFC 8690, RFC 9214

Authors:

N. Kumar, Ed.
C. Pignataro, Ed.
G. Swallow
N. Akiya
S. Kini
M. Chen

Stream:

IETF

Source:

mpls (rtg)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC8287

Discuss this RFC: Send questions or comments to the mailing list mpls@ietf.org

Other actions: View Errata  |  Submit Errata  |  Find IPR Disclosures from the IETF  |  View History of RFC 8287

Abstract

A Segment Routing (SR) architecture leverages source routing and tunneling paradigms and can be directly applied to the use of a Multiprotocol Label Switching (MPLS) data plane. A node steers a packet through a controlled set of instructions called "segments" by prepending the packet with an SR header.

The segment assignment and forwarding semantic nature of SR raises additional considerations for connectivity verification and fault isolation for a Label Switched Path (LSP) within an SR architecture. This document illustrates the problem and defines extensions to perform LSP Ping and Traceroute for Segment Routing IGP-Prefix and IGP-Adjacency Segment Identifiers (SIDs) with an MPLS data plane.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.