PRTG Traffic Grapher is an easy to use Windows based software that monitors bandwidth usage and other network parameters via SNMP. PRTG Traffic Grapher monitors network and bandwidth usage as well as various other network parameters like memory and CPU usages, providing system administrators with live readings and periodical usage trends to optimize the efficiency, layout and setup of leased lines, routers, firewalls, servers and other Simple Network Management Protocol (SNMP) enabled network components. PRTG Traffic Grapher runs on a Windows machine in your network for 24 hours every day and constantly records the network usage parameters. The recorded data is stored in an internal database for later reference.