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[Idr] Re: BGP Origin Scrubbing (draft-marenamat-idr-scrub-bgp-origin-00)

heasley <heas@shrubbery.net> Mon, 03 November 2025 23:36 UTC

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From: heasley <heas@shrubbery.net>
To: Maria Matejka <maria.matejka=40nic.cz@dmarc.ietf.org>
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Subject: [Idr] Re: BGP Origin Scrubbing (draft-marenamat-idr-scrub-bgp-origin-00)
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Mon, Nov 03, 2025 at 11:48:22PM +0100, Maria Matejka:
> >    The BGP Origin attribute in its original meaning has been out of use
> >    for years.  Yet, the BGP Origin attribute has high priority in the
> >    best route selection algorithm, right after the AS Path length, and
> >    it's being used inconsistently over the Internet to manipulate the
> >    route preference.

Yes, it is being used to affect route selection.  There are few knobs that
one can turn for that purpose.  I suggest that the attribute be left alone.

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