Paessler Router Traffic Grapher

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Paessler Router Traffic Grapher (PRTG) is a network monitoring and bandwidth use software for Microsoft Windows by Paessler AG.

1 Overview
2 References
3 See also
4 External links

[edit] Overview

With PRTG bandwidth usage of a network can be monitored and classified using the three most common bandwidth data acquisition methods:

SNMP: Reads traffic counters of network devices like switches, routers and servers
Packet Sniffer: Looks at all data packets travelling through a network using the promiscuous mode and analyzes the network packets to find out the IP addresses, protocols, etc. of the source and target machine
Netflow: Analyses Netflow protocol packets used mostly by Cisco routers

Using SNMP not only bandwidth usage but also many other network readings (e.g. CPU usages, disk usages, temperatures) can be monitored using SNMP OIDs.

The usage data is constantly recorded and the historic data can be analyzed e.g. with data tables for usage billing and graphs for trend analysis via a web server interface and in a Windows GUI.

PRTG was originally developed by Dirk Paessler when he discovered how much effort it is to install and configure MRTG on Microsoft Windows systems. More than 100.000 installations are currently active. A freeware version is available.

[edit] References

Posey, Brien M. (July 29, 2003). PRTG makes it easy to monitor bandwidth, TechRepublic

[edit] See also

Paessler: Manufacturer of the software
MRTG: Open source monitoring software for Linux&Perl
Network traffic measurement: A list of tools to help networks administrators to manage bandwidth and solve congestion problems on their network uplink