Hi, On Fri, Oct 14, 2022 at 02:41:45PM -0400, harbor235 wrote: > I hear what your saying but NTP is an active attack vector, I don't trust > outside resources implicitly and traffic segmentation is a prudent measure > especially if you are getting internet time. Now if you have your own > stratum1 then I understand your point more.
The Meinberg boxes have GPS receivers, so they provide Stratum 1 directly. The FreeBSD boxes run standard NTP time, and sync to a variety of official sources (like ntp.se) that are hard to manipulate all at the same time. Now what I'd really like is to use one of those... https://www.oscilloquartz.com/de-de/products-and-services/ptp-grandmaster-clocks/sfp-pluggable-ptp-grandmasters/osa-5401-series ... plug it directly into one of our Aristas, *and* have the router use the PTP time source to feed its own NTP service, as stratum 1... "Less boxes" gert -- "If was one thing all people took for granted, was conviction that if you feed honest figures into a computer, honest figures come out. Never doubted it myself till I met a computer with a sense of humor." Robert A. Heinlein, The Moon is a Harsh Mistress Gert Doering - Munich, Germany g...@greenie.muc.de
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