+1 to running the exact same, even though mine are expansion cards on Raspberri 
Pi’s and if there is any drift at all or loss of GPS signal or sync I get 
PagerDuty alerts within a minute and the problem is very clear and obvious if 
other things start playing up BUT that’s why little guys exist and Telstra, 
well they’re having a very bad week and it’s going to cost tens of millions and 
rolled heads sadly.

Also I found a few Symmetricom SyncServer S300 for roughly $600, the irony and 
sadness of such an integral device being kept in the network with a known bug 
is unfortunate but it’s also possible due to lost knowledge after downsizing 
and retirements.

There is someone sitting somewhere who saw this happen and thought, I told them 
:(

Lessons to learn for everyone I think, like Optus’s, make sure everyone has a 
console cable ‘haha’.

From: AusNOG <[email protected]> on behalf of Ross Wheeler 
<[email protected]>
Date: Tuesday, 14 July 2026 at 18:41
To: Robert Hudson <[email protected]>
Cc: Ausnog <[email protected]>; Greg Price <[email protected]>
Subject: Re: [AusNOG] Telstra outage?



On Tue, 14 Jul 2026, Robert Hudson wrote:

> If Telstra had had 5 Stratacom NTP servers

I'm just a tiny hick from BFN, I run nine and have done for 20+ years.
I run multiple geographically diverse GPS-derived sources which I guess
are technically called stratum-1 but are they?

Anyway, I monitor all the times on all my boxes and alarm if ANY of them
drift more than a few milliseconds.

Do I need it? Almost certainly not.
So why do I do it that way? Well, "why not?".

I'm not pointing the bone at 'T', but it's not like it's a crippling cost
to maintain a "non-trivial" number of stratum 1 or trusted stratum 2 time
sources. </opinion>

R.
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