Broadcast Storm: Causes, Prevention, and How to Protect Your Network

This article explains broadcast storms – sudden, overwhelming floods of network traffic caused by looping broadcasts – and how they can cripple a network. These storms typically result from network loops (like improperly configured redundant connections), hubs, or faulty devices, and are characterized by drastically reduced network performance and maxed-out switch CPU utilization. The article emphasizes prevention through tools like Spanning Tree Protocol (STP), VLANs, and storm control features on switches, and highlights how network monitoring software like PRTG can proactively detect and help troubleshoot these issues before they escalate into full outages.