nanog mailing list archives

Re: Charging for IPs


From: Saku Ytti via NANOG <nanog () lists nanog org>
Date: Mon, 7 Sep 2026 11:29:35 +0300

On Mon, 7 Sept 2026 at 10:55, Saku Ytti <saku () ytti fi> wrote:

CDNs don't use MSS 1460, because it works so poorly. So we are leaving
performance on the table, due to PMTUD being too broken.

I seem to have outdated information, most or all(?) have returned to
1460 cap. Largely due to PPPoE density getting lower, combined with
PLPMTUD.

https://blog.cloudflare.com/client-dynamic-path-mtu-discovery/
-- 
  ++ytti
_______________________________________________
NANOG mailing list 
https://lists.nanog.org/archives/list/nanog () lists nanog org/message/SOL64OWBF6SFO7GTKLSMKBXGHNZ3X5B4/


Current thread: