[AusNOG] Telstra outage?

[Karl von Muller]

Interesting, I did wonder if they had OCXO or a TCXO in it, but I'm
guessing after the update and/or reboot the GPS time would've
overridden that.

On Wed, 15 Jul 2026 at 12:33, Scott McInness <scott.mcinness at datacom.com>
wrote:

> According to the datasheet there is/was a PTP grandmaster upgrade option,
> as well as a rubidium or OCXO oscillator upgrades (TCXO standard), so it’s
> possible that they already had PTP functionality.
>
> http://syncworks.com/wp-content/uploads/2012/12/S300-Data-Sheet.pdf
>
>
>
> *From:* AusNOG <ausnog-bounces at lists.ausnog.net> *On Behalf Of *Karl von
> Muller
> *Sent:* Wednesday, 15 July 2026 11:23 AM
> *To:* Narelle Clark <narellec at gmail.com>
> *Cc:* Ausnog <ausnog at lists.ausnog.net>; Greg Price <greg at lakemountain.com>
> *Subject:* Re: [AusNOG] Telstra outage?
>
>
>
> Would PTP be a better solution for someone like Telstra who heavily relies
> on very accurate time?
>
>
>
> On Tue, 14 Jul 2026 at 19:55, Narelle Clark <narellec at gmail.com> wrote:
>
> NTP is observably fundamentally flawed. It's good, but drifts and has
> issues.
>
>
>
> Here is a talk given to IAA members by an academic who has been measuring
> it for 20yrs: https://internet.asn.au/events/online_convergent_event_2/
>
>
>
> The in person version had us all riveted.
>
> Narelle
> narellec at gmail.com
>
>
>
> On Tue, 14 July 2026, 7:23 pm Ross Wheeler, <ausnog at rossw.net> wrote:
>
>
>
> On Tue, 14 Jul 2026, Mark Smith wrote:
>
> > So it seems a "nice to have" upstream NTP service that wasn't accurate
> > and people didn't really care about became a need to be accurate on a
> > network access device.
>
> This might sound conceited but I've never trusted "upstream" anythings
> because I don't know how (or IF) they give a damn, unfortunately often
> it's "we don't".
>
> If it's technically and financially PRACTICAL for me to do it in-house, I
> do. Always have. Because *I* care about me and I know very few others do.
>
> R.
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