Today’s LiveWire Spotlight examines four “teachable moments” where impaired or improperly set network switches caused a packet broadcast storm threatening electric system reliability. All four offer Lessons Learned urging entities to look for procedural, training, and system-based solutions to prevent the introduction of BES-threatening flaws into a communications network.

Communications integrity and situational awareness are two of NERC’s top reliability concerns. Severe penalties may be levied if an electric system outage occurs, and it is found that a BES Cyber System operator did not act upon these Lessons Learned.