With PRTG Network Monitor, you can find out how much bandwidth you are actually using. Beyond normal bandwidth monitoring capabilities based on SNMP, the bandwidth tool PRTG allows administrators to discern used bandwidth in their network based on multiple parameters, such as IP addresses, port numbers, protocols, etc., using either packet sniffing or NetFlow sensors.

Advantages of Monitoring Used Bandwidth

Many internet service providers charge you according to the amount of used bandwidth. If you know what your actual load is, you can save money buying bandwidth and hardware according to actual load.

On the other hand, if you find bandwidth-based bottlenecks in your network, you can improve user experience by proactively reducing them.

By monitoring your used bandwidth, you can also find out what applications, computers or servers use up your bandwidth.

How Does PRTG Monitor Used Bandwidth?

If you check bandwidth usage with SNMP, you can find out the total bandwidth used as well as used bandwidth for outgoing and incoming traffic.

Packet sniffing sensors generally use the host machine's network card but can be configured to use monitoring ports found on some networking devices using port mirroring / forwarding in order to monitor the overall network bandwidth utilization.

Netflow collectors receive data forwarded by Netflow-capable Cisco devices using the Netflow protocol.

PRTG Network Monitor

Paessler's network management tool PRTG is available in two editions. For basic, free network traffic tracking, web site monitoring and availability monitoring, the Freeware Edition may be downloaded and used for personal and commercial use completely free of charge. For more advanced needs, licenses for the Commercial Editions start at $440 / €330.

The Network Monitor can also be used as a PING tool, SNMP server, protocol analyzer, SQL server monitor and more. Apart from PRTG, Paessler also offers load test and performance test freeware.

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