Thanks Alex - interesting! My uninformed comments early today were:> Both a single point-of-failure *and* unintended interdependencies among services?? Economising on risk assessment and management seems like a good idea, until it doesn't. And as for investment in 'warm-site' data-mirrors and fallback processing resources, that's far too expensive.
A positive outcome from the event is this proof that not all images of cats on the Internet are just fluff and bubble:
http://rogerclarke.com/II/signal-2023-11-08-103155.jpg _________________ On 8/11/23 10:22 am, Alex (Maxious) Sadleir wrote:
Around 4am, Optus networks re-announced all their BGP routes at once https://radar.cloudflare.com/routing/as7474 https://radar.cloudflare.com/routing/as4804 This is indicative of a change management malfunction, akin to IBM's 2016 eCensus routers restarting with no routes https://www.itnews.com.au/news/ibm-treasury-in-settlement-talks-over-census-failure-440066 The VoWifi infrastructure seems to be online but unable to connect any calls https://goughlui.com/2023/11/08/breaking-optus-nationwide-outage-08-11-2023/ More alarmingly 000 doesn't work on landlines https://twitter.com/lucethoughts/status/1722029287727825124 contrary to advice from emergency services https://twitter.com/nswpolice/status/1722028862161449151
On Wed, Nov 8, 2023 at 10:08 AM Tom Worthington <[email protected]> wrote:Any more news on what caused the Optus network outage? On ABC Canberra Radio this morning I suggested it was most likely a software upgrade which went wrong, and would be fixed by 6pm. Is VoWiFi working? I use Telstra, but when COVID-19 struck, I purchased an Optus 4G modem, with an Optus SIM. This was in case Telstra went down. -- Tom Worthington http://www.tomw.net.au _______________________________________________ Link mailing list [email protected] https://mailman.anu.edu.au/mailman/listinfo/link_______________________________________________ Link mailing list [email protected] https://mailman.anu.edu.au/mailman/listinfo/link
-- Roger Clarke mailto:[email protected] T: +61 2 6288 6916 http://www.xamax.com.au http://www.rogerclarke.comXamax Consultancy Pty Ltd 78 Sidaway St, Chapman ACT 2611 AUSTRALIA
Visiting Professor in the Faculty of Law University of N.S.W. Visiting Professor in Computer Science Australian National University
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_______________________________________________ Link mailing list [email protected] https://mailman.anu.edu.au/mailman/listinfo/link
