[AusNOG] Optus downtime chat + affecting SMS verification toTelstra?

[Tony Wicks]

To be fair, Assuming there were config issues (i.e. the lack of maximum-prefixes and the lack of filtering preventing large route tables hitting devices that can not carry full tables) the behaviour of a network device when its RIB/FIB or memory is exceeded also significantly comes into play. Dropping BGP is fine, crashing the router so it requires a hard reset is another case entirely. In my experience (I have not used Cisco's in a telco environment for many years however) Cisco devices have been much more pre-disposed to crash catastrophically than over vendor devices like Nokia or Juniper.



-----Original Message-----
From: AusNOG <ausnog-bounces at lists.ausnog.net> On Behalf Of DaZZa
Sent: Friday, November 17, 2023 2:38 PM
To: Andrew Oakeley <andrew at oakeley.com.au>
Cc: michael.bethune at australiaonline.au; Luke Thompson <luke.t at tncrew.com.au>; ausnog at lists.ausnog.net
Subject: Re: [AusNOG] Optus downtime chat + affecting SMS verification toTelstra?

What a load of crap.

The root cause was they're morons, and configured the routers incorrectly.

Cisco had nothing to do with it. I'll bet the routers behaved exactly as they were intended to behave.