NetFlow v5

NetFlow v5 is a network protocol developed by Cisco that collects and analyzes data about how traffic moves through a network. It records details like source and destination IP addresses, ports, and the amount of data transferred. This information helps network administrators monitor performance, identify issues, and understand usage patterns. Think of it as a detailed traffic report for a busy highway, showing where vehicles (data packets) are coming from, where they're going, and how much traffic each route carries, enabling better management and security of the network infrastructure.