Compressed SRv6 Segment List Encoding

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Publisher: IETF
Doc Type: Standard
Pages: 59
Abstract: Segment Routing over IPv6 (SRv6) is the instantiation of Segment Routing (SR) on the IPv6 data plane. This document specifies new flavors for the SRv6 endpoint behaviors defined in RFC 8986, which enable the compression of an SRv6 segment list. Such compression significantly reduces the size of the SRv6 encapsulation needed to steer packets over long segment lists. This document updates RFC 8754 by allowing a Segment List entry in the Segment Routing Header (SRH) to be either an IPv6 address, as specified in RFC 8754, or a REPLACE-CSID container in packed format, as specified in this document.
Publication Date: 2025-06-01
Status Note: Proposed Standard
DOI: 10.17487/RFC9800
Link: https://doi.org/10.17487/RFC9800
Author(s): Weiqiang Cheng
Clarence Filsfils
Zhenbin Li
Bruno Decraene
Francois Clad
Keyword(s): Segment Routing, SRv6

Latest version of IETF RFC 9800

Document Versions — IETF RFC 9800

▶ IETF RFC 9800 (2025-06-01)

THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 8174 [Active*]
IETF RFC 8200 [Active*]
IETF RFC 8402 [Active*]
IETF RFC 8754 [Active*]
IETF RFC 8986 [Active*]

Bibliographic Reference(s)

IETF.draft-ietf-idr-bgp-ls-sr-policy-17 — I-D.ietf-idr-bgp-ls-sr-policy EXTERNAL
IETF.draft-ietf-idr-sr-policy-safi-13 — I-D.ietf-idr-sr-policy-safi EXTERNAL
ISBN.9780201558029 — GKP94 EXTERNAL
IETF RFC 4786 [Active*]
IETF RFC 9252 [Active*]
IETF RFC 9259 [Active*]
IETF RFC 9350 [Active*]
IETF RFC 9352 [Active*]
IETF RFC 9513 [Active*]
IETF RFC 9514 [Active*]
IETF RFC 9602 [Active*]
IETF RFC 9603 [Active*]

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IETF RFC 8754 [Active*]

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IETF RFC 9800, Compressed SRv6 Segment List Encoding. Available at https://doi.org/10.17487/RFC9800

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IETF RFC 9800, Compressed SRv6 Segment List Encoding. Available at https://doi.org/10.17487/RFC9800

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<span class="citation"><cite>IETF RFC 9800</cite>, Compressed SRv6 Segment List Encoding. Available at <a href="https://doi.org/10.17487/RFC9800" target="_blank" rel="noopener">https://doi.org/10.17487/RFC9800</a></span>

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doi: 10.17487/RFC9800
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Referenced By

IETF RFC 9819 [Active*]