Network visibility starts with knowing what’s on your network. In this episode, we explain network discovery techniques using tools like ping sweeps, SNMP queries, and Nmap scans to identify devices, operating systems, and open services. You’ll learn how to distinguish active vs. passive discovery methods, the importance of using up-to-date inventories, and how to prevent disruptions while scanning.

We also cover real-time performance monitoring, including metrics like CPU, memory, interface utilization, and error counters. Tools like SNMP, NetFlow, and custom dashboards help you detect performance degradation before users report it. Combined, discovery and monitoring give you a comprehensive view of your environment, helping you diagnose problems and plan for future growth.