PRTG Traffic Grapher - User Manual
How PRTG works with SNMP
For traffic and bandwidth monitoring PRTG Traffic Grapher logs the amount of data flowing in and out of an SNMP (see above) enabled network component. To do this PRTG Traffic Grapher constantly reads the traffic counters (Internet MIB-2) from the device.
To monitor other SNMP values PRTG Traffic Grapher reads the current values from the device using an OID from its own OID library or by using an OID entered by the user.
PRTG Traffic Grapher keeps track of the historic monitoring data in its database
What is PRTG Traffic Grapher?
PRTG Traffic Grapher is an easy to use Windows software for monitoring and classifying bandwidth usage. It provides system administrators with live readings and long-term usage trends for their network devices. The most common usage is bandwidth usage monitoring, but you can also monitor many other aspects of your network like memory and CPU utilizations.