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Re: How long AS-PATH policies have you used


From: Saku Ytti via NANOG <nanog () lists nanog org>
Date: Thu, 26 Feb 2026 12:08:14 +0200

Yes we are doing it, and yes we wouldn't stop doing it. But we are in
addition offering prefix-list filtering today, to offer some cover to
those, who are not worthy of peerlock. And can I stop doing that?

Mind, this is not rhetorical question. I want answers from Nanog.

Are you comfortable for your tier1 to stop honoring AS-SET? Is it fine
that AS-SET violating customer advertises your prefix to us, and we
propagate it? Rare enough occurrence that is not worth the complexity
of honouring AS-SET?

Because if you are, I'll happily stop honouring it, saves me lot of ache.
-- 
  ++ytti
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