Rogers is also known to historically have had a somewhat 'flatter' and less mature network architecture as compared to their peers, Telus and Bell. Likely owing

Rogers is also known to historically have had a somewhat 'flatter' and less mature network architecture as compared to their peers, Telus and Bell. Likely owing to their roots as a cable television provider as opposed to landline telephony - ie: dumb pipe vs. less-dumb pipe. Lots of things went wrong here, to name a few: - lack of rigour in their process that allowed a critical modification without understanding its effects in context - lack of monitoring and metrics to alert them immediately of the problem - lack of emergency rollback capability to revert back to the known-good config - lack of independent business-continuity comms channels. if you're a Rogers CTO or senior responsible adult and you don't have a backup Telus or Bell SIM card (and vice versa), you learned why you need one.