Interface Usage
Interface Usage report reveals Network Traffic Analyzer source, incoming and outgoing interface traffic totals (and trends) for the selected period. Interfaces can be displayed separately, or grouped together by name. If you group by interface name, all interfaces under a single display name are summed, and all data displayed is a total for those interfaces.
- . Device hostname, IP address, or custom label.
- . Traffic volume received on the interface.
- . Total average rate of inbound traffic.
- . Usage is at or below this figure 95% of the time. (Raw data calculation.)
- . Total bytes transmitted from the interface.
- . Total average rate of outbound traffic.
- . Usage is at or below this figure 95% of the time. (Raw data calculation.)
Click a column heading (
) to display the column selection listing 
. You can also include:
- . Device hostname, IP address, or custom label.
- . Textual name of the interface (ifName).
- . Network interface SNMP table identifier (ifIndex).
- . Maximum incoming rate observed.
- . Maximum incoming rate observed.
- . Standard deviation of the incoming rate.
- . Minimum outgoing rate observed.
- . Maximum outgoing rate observed.
- . Standard deviation of the outgoing rate.
: Interfaces with an index of 0 denote the NULL interface.
Generate a report
. 
, 
Choose a networking device or single physical or virtual interface you want to see Interface Usage measurements for. Choose traffic direction across an interface.
Use the Select Device dialog for one of the following:
Control
|
Description
|
Device.
|
Browse and choose a networking device that is a Network Traffic Analyzer monitoring source. (For example, wireless router, router, and more)
|
Network Interface.
|
- Choose a single physical or virtual interface Network Traffic Analyzer you want traffic statistics for.
- Choose direction of traffic over the network interface (, , , or for invalid traffic.).
|
Network. 
|
Network devices known to NTA.
|
. (
,
) Choose times for the Interface Usage. (For recently observed measurements, select from the Date Range drop down list.)
Choose time constraints for data view
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.
|
. Sort and remove columns, group rows based on specific column values, and remove unwanted information from the table.
Filter and pick by column
Click a report heading 
and use the following from the drop down list:
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.
|
. 
Fine tune report presentation and range of values displayed using the Report Settings dialog (optional).
Specify threshold and top n:
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.
|
Chart and visualize data over time (single device 
)
Charting and visualization is available when you select a single device.
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 .
- Time series. Available when you select a Date Range interval (, 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.
|
: Trend lines represent a moving average that can be compared with line and area graphs to reveal peak and sub peak intervals, collision periods, and indicate transmission problems.
Share, export, and save as PDF
Most generated Interface Usage report data can be printed, shared, and exported when selecting (
) from the Dashboard Options (
) menu. After the report has been expanded, select export (
) to access the following options:
Network Traffic
Choose source.