What protocol is used to collect information about traffic traversing a network?

The protocol used to collect information about traffic traversing a network is “NetFlow.” NetFlow is a network protocol developed by Cisco that allows for the collection and monitoring of network traffic data. It provides information about the source and destination of network packets, the volume of data transferred, the time of transmission, and other details that are essential for network traffic analysis and monitoring. This information is valuable for network administrators and security professionals in understanding and managing network traffic. Telnet, NAT (Network Address Translation), and HTTPS serve different purposes and are not primarily used for collecting traffic information in the same way that NetFlow does.