Through the Performance Monitoring system, you have the ability to configure WhatsUp Gold to gather bandwidth usage on your SNMP enabled devices (routers, switches, etc.) and then track that usage through performance reports. Several Performance Monitors are installed with the application, but for bandwidth monitoring, the Interface Utilization monitor is the most useful (this will illustrate percent utilization and throughput).
The Interface Utilization monitor gathers statistics on the volume of bytes going through the active interfaces on the device. You can collect data on all interfaces, active interfaces, or just specific interfaces. This monitor is configured and enabled through Device Properties > Performance Monitors.
Note: Before you can configure the monitor, you must have SNMP enabled on the device, and the proper credentials configured in the Credentials Library for the device. The Performance Monitoring system uses these credentials to connect to the device during the configuration process, and during normal performance gathering. For more information, see Enabling SNMP on Windows devices.
The Interface Utilization Performance Monitor is one of the default performance monitors installed with WhatsUp Gold, and needs no global configuration to configure the monitor for a single device.
To configure the Bandwidth Monitor:
When the scan completes, the Configure Interface Data Collection dialog appears. If the credentials for the device are not configured properly, the scan will fail (return to the Credentials Library to fix it). If the device is not SNMP-enabled, the scan will fail.
WhatsUp Gold will take several polling cycles to produce meaningful graphs (with a 10 minute poll interval, this may mean a few hours). After enough data is gathered, several reports display this data.