Hello there,
Happy to see this document again. I fully support it.
Alejandro,
On 13/4/26 3:55 AM, [email protected] wrote:
Internet-Draft draft-ietf-grow-as-path-prepending-18.txt is now available. It
is a work item of the Global Routing Operations (GROW) WG of the IETF.
Title: AS Path Prepending
Authors: Mike McBride
Doug Madory
Jeff Tantsura
Robert Raszuk
Hongwei Li
Jakob Heitz
Gyan Mishra
Name: draft-ietf-grow-as-path-prepending-18.txt
Pages: 12
Dates: 2026-04-13
Abstract:
Autonomous System (AS) path prepending is a tool to manipulate the
BGP AS_PATH attribute through prepending one or more Autonomous
System Numbers (ASNs). AS path prepending is used to deprioritize a
route in the presence of a route with a shorter AS_PATH. By
prepending a local ASN multiple times, ASes can make advertised AS
paths appear artificially longer. However, excessive AS path
prepending has caused routing issues in the Internet. This document
provides guidance for the use of AS path prepending, including
alternative solutions, in order to avoid negatively affecting the
Internet.
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-grow-as-path-prepending/
There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-grow-as-path-prepending-18
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-grow-as-path-prepending-18
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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