Interface Utilization

Interface Utilization reports reveal measurements for network traffic across one or more network interfaces for each device or device group you specify. These reports help you to visualize current and historic flow of network traffic.

If you specify a device group, the report reveals average rate and total volume of traffic for each device within the group. If you specify a switch, this report returns average rate and traffic volume across each LAN segment —a subscript (n) follows the device name to denote the port number.

Important: Capacity utilization figures are typically calculated using an interface speed value returned from the device. For cases where the "nominal" speed (actual operational speed adjusted for other factors such as available bandwidth) for the interface is different than the value reported back from the device, you can edit this value from the Monitors tab in Device Properties (). For more information, see the Interface Utilization monitor topic.

(Report Options). Jump to a detailed dashboard or control panel for:
- Device Properties.
- Device Status.
- RealTime Performance Monitor.
Device. Device hostname, IP address, or custom label.
Interface. Textual name of the interface (ifName).
% Tx Avg. Fraction of the interface bandwidth needed for transmitted bytes.
% Rx Avg. Fraction of bandwidth utilized by received bytes.
Last Poll. Duration since last sample.

To display additional measurements, click a column heading () for column selection (). You can also include:

Tx Avg. Average of available bandwidth needed for transmit.
Rx Avg. Average of available bandwidth needed for received traffic.
Tx Speed. Displays observed transmit speed for a point in time if you selected Last Polled. Displays average transmit speed if you selected a range of time (for example, Today).
Rx Speed. Displays observed receive speed for a point in time if you selected Last Polled. Displays average receive speed if you selected a range of time (for example, Today).
Tx Bytes. Byte count transmitted for the specified period.
Rx Bytes. Byte count received for the specified period.

If a single device is selected for display, you can access the Real-Time Performance Monitor by clicking the icon or the Traffic Analysis Dashboard by clicking the icon.

Generate a report

Choose Device. Choose one or more host devices you want Interface Utilization measurements for.

Choose time constraints. (,) Choose times for the Interface Utilization. (For recently observed measurements, select Last Polled from the Date Range drop down list.)

Filter and reduce by row and by column. Sort and remove columns, group rows based on specific column values, and remove unwanted information from the table.

Chart, adjust output, and visualize. Fine tune report presentation and range of values displayed using the Report Settings dialog (optional).

Note: This report only returns Interface Utilization metrics for devices that already have the appropriate WMI or SNMP credentials. For more information, see Using Credentials.

Share, export, and save as PDF

Most generated Interface Utilization report data can be printed, shared, and exported when selecting Expand () from the Dashboard Options () menu. After the report has been expanded, select export () to access the following options:

Print/Export to PDF. Automatically generate a PDF file of the report.
Export Data. Export Interface Utilization data and leverage outside of WhatsUp Gold.
Schedule Export. Set a recurring date and time, format, and email destination for report data export.

Control	Purpose
Device	Browse and choose a single device.
Single Interface	Choose an interface on a device.
Device Group	Choose an existing group of one or more devices. You can also create custom or dynamic groups.

Control	Purpose
Date Range	Choose or define an overall date range.
Business hours	Focus on specific days of the week and periods within each day. Reveal trends that are sensitive to business hours, time zones, and other periodic attributes in the observed data.

Control	Purpose
Sort.	Sort column in ascending or descending order.
Columns.	Pick the columns you want to view. Click a check box to display the column. Clear the check box to hide it.
Group by this field.	Group table into collapsible rows wherever the current column contains identical data ("field") values.
Filters.	Provide a keyword to view only rows that contain the keyword for this column.

Control	Purpose
Show Top n Items	Limit items to the samples with the highest (or lowest) interface errors.
Threshold Type	Switch between minimum or maximum mode for cutoff values for the ranked list. At or Over. Show peak occurrence period. (Observations equal to or greater than Threshold.) At or Under. Show occurrences equal to or less than Threshold.
Threshold (percent)	Baseline value used to trim ranked device list based on peak or subpeak periods when returning the Top n.

Control	Purpose
Display Options	Present data as a chart, a table grid, or both.
Chart Type	Gauge charts. Available when you select a Date Range of Last Polled . Time series. Available when you select a Date Range interval (Today , for example). Line/Area. Scatter graph that connects adjacent measurements with straight lines. Spline/Area Spline. Choose a graph with a smoothed appearance where adjacent samples exhibit a gradual slope.
Chart Options	Legend, Grid Lines, Range Selector. Include legend, grid lines, and range selector for readability. Trend Lines. Present data with a smoothed average to show trend. Vertical Axis Scale. Automatically scale to fit data or specify a finite range.