API Resources
Theme

Choose how MSRBot.io looks on this device.

Auto (match system) Light mode Dark mode

Preference is stored in this browser only.

IETF RFC 9117
[ACTIVE]

Revised Validation Procedure for BGP Flow Specifications

Metadata

Publisher
IETF
Doc Type
Standard
Pages
12
Abstract
This document describes a modification to the validation procedure defined for the dissemination of BGP Flow Specifications. The dissemination of BGP Flow Specifications as specified in RFC 8955 requires that the originator of the Flow Specification match the originator of the best-match unicast route for the destination prefix embedded in the Flow Specification. For an Internal Border Gateway Protocol (iBGP) received route, the originator is typically a border router within the same autonomous system (AS). The objective is to allow only BGP speakers within the data forwarding path to originate BGP Flow Specifications. Sometimes it is desirable to originate the BGP Flow Specification from any place within the autonomous system itself, for example, from a centralized BGP route controller. However, the validation procedure described in RFC 8955 will fail in this scenario. The modification proposed herein relaxes the validation rule to enable Flow Specifications to be originated within the same autonomous system as the BGP speaker performing the validation. Additionally, this document revises the AS_PATH validation rules so Flow Specifications received from an External Border Gateway Protocol (eBGP) peer can be validated when such a peer is a BGP route server. This document updates the validation procedure in RFC 8955.
Publication Date
2021-08-01
Status Note
Proposed Standard
DOI
10.17487/RFC9117
Link
https://doi.org/10.17487/RFC9117
Author(s)
Jim Uttaro
Juan Alcaide
Clarence Filsfils
David Smith
Prodosh Mohapatra
Keyword(s)
Flowspec
Latest version of IETF RFC 9117

Document Versions — IETF RFC 9117

  • ▶ IETF RFC 9117 (2021-08-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

Bibliographic Reference(s)

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/RFC9117.json

Amends:
IETF RFC 8955 [Active*]

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree
Reference this Doc

Plain text (ISO 690 compliant)

Preview:
IETF RFC 9117, Revised Validation Procedure for BGP Flow Specifications. Available at https://doi.org/10.17487/RFC9117
Snippet:
IETF RFC 9117, Revised Validation Procedure for BGP Flow Specifications. Available at https://doi.org/10.17487/RFC9117

HTML (ISO 690 compliant)

Preview:
IETF RFC 9117, Revised Validation Procedure for BGP Flow Specifications. Available at https://doi.org/10.17487/RFC9117
Snippet:
<span class="citation"><cite>IETF RFC 9117</cite>, Revised Validation Procedure for BGP Flow Specifications. Available at <a href="https://doi.org/10.17487/RFC9117" target="_blank" rel="noopener">https://doi.org/10.17487/RFC9117</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
IETF RFC 9117, Revised Validation Procedure for BGP Flow Specifications
doi: 10.17487/RFC9117
url: https://doi.org/10.17487/RFC9117
Snippet:
<li>
<cite id="bib-rfc9117">IETF RFC 9117</cite>, Revised Validation Procedure for BGP Flow Specifications
<span class="doi">10.17487/RFC9117</span>
</li>