Bandwidth utilization monitors bandwidth on a network interface. It can be configured with or without threshold settings. On Windows devices, the methods for measuring bandwidth can be SNMP or WMI or Windows performance counters. For all other types of devices, SNMP is the method used. Always consider using SNMP for monitoring bandwidth since it is much faster and leaner on resources than WMI or Windows performance counters.
For WMI or Windows performance counters, a Windows user with permissions to read the registry on the monitored device is required.
When using Windows performance counters, the service “Remote Registry” must be enabled and started on the monitored device.
If you experience issues with this monitor type on Windows machines, try unchecking the Use WMI checkbox on the Advanced tab of the device node.
The community name, SNMP version, and port used used by Network Monitor to connect to an SNMP device is set on the Authentication tab of a device node. The device node may inherit this setting from a parent node. See the Installation Checklist.
Interface speed - Optional parameter to manually set the interface speed. This can be useful if you are monitoring a NIC that is connected to a slower connection such as a ADSL line. The speed is always entered in Kbps.
Force SNMP - Displays if SNMP is detected on the device. If checked, SNMP is used, even if the device is a Windows system type.
Check link status - If checked, monitoring of Up or Down status. SNMP is the only method that enables you to select the Check link status checkbox.
Unit - Unit to record and display bandwidth utilization data in. This cannot be changed once the monitor has been created.
Threshold - The upper threshold in the selected unit.
Inherit credentials - Specifies the Windows domain credential, if one is required. If checked, inherited. If blank, overrides the Windows domain credential set for the device on the Authentication tab of a device node.
