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IETF RFC 9917
[ACTIVE]

IGP Flexible Algorithms Reverse Affinity Constraint

Metadata

Publisher
IETF
Doc Type
Standard
Pages
12
Abstract
An IGP Flexible Algorithm (Flex-Algorithm) enables the computation of constraint-based paths within an IGP domain, allowing operators to influence path selection according to administrative policies. This document defines an extension to Flex-Algorithm that allows the inclusion or exclusion of links from path computation based on Administrative Groups (also known as link affinities) associated with the reverse direction of the path under computation. This document updates RFCs 9350 and 9843 by introducing the new IANA registry that specifies the ordered set of rules that are used to prune links from the topology during the Flex-Algorithm path computation.
Publication Date
2026-01-01
Status Note
Proposed Standard
DOI
10.17487/RFC9917
Link
https://doi.org/10.17487/RFC9917
Author(s)
Peter Psenak
Jakub Horn
Amit Dhamija
Latest version of IETF RFC 9917

Document Versions — IETF RFC 9917

  • ▶ IETF RFC 9917 (2026-01-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

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Full registry record with provenance metadata. Open directly: /api/doc/RFC9917.json

Amends:
IETF RFC 9350 [Active*]
IETF RFC 9843 [Active*]

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IETF RFC 9917, IGP Flexible Algorithms Reverse Affinity Constraint. Available at https://doi.org/10.17487/RFC9917
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IETF RFC 9917, IGP Flexible Algorithms Reverse Affinity Constraint. Available at https://doi.org/10.17487/RFC9917

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IETF RFC 9917, IGP Flexible Algorithms Reverse Affinity Constraint. Available at https://doi.org/10.17487/RFC9917
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<span class="citation"><cite>IETF RFC 9917</cite>, IGP Flexible Algorithms Reverse Affinity Constraint. Available at <a href="https://doi.org/10.17487/RFC9917" target="_blank" rel="noopener">https://doi.org/10.17487/RFC9917</a></span>

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IETF RFC 9917, IGP Flexible Algorithms Reverse Affinity Constraint
doi: 10.17487/RFC9917
url: https://doi.org/10.17487/RFC9917
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<cite id="bib-rfc9917">IETF RFC 9917</cite>, IGP Flexible Algorithms Reverse Affinity Constraint
<span class="doi">10.17487/RFC9917</span>
</li>

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