Interface Errors and Discards
Interface Errors and Discards report reveals interface error and discard data. A packet can have more than one error.
- . Device hostname, IP address, or custom label. This is the host where the interface is configured.
- . Text string associated with interface.
- . Packet error count on transmit.
- . Packet error count on receive.
- . Count of packets abandoned at transmit time.
- . Count of received packets discarded.
Generate a report
. 
Choose one or more host devices you want Interface Errors and Discards measurements for.
Use the Select Device dialog for one of the following:
Control
|
Purpose
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Device 
|
Browse and choose a single device.
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Single Interface 
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Choose an interface on a device.
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Device Group 
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Choose an existing group of one or more devices. You can also create custom or dynamic groups.
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: You can organize devices into custom or dynamic groups. For more information, see Grouping Devices.
. (
,
) Choose times for the Interface Errors and Discards. (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.
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Business hours
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- 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. 
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Sort column in ascending or descending order.
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Columns. 
|
Pick the columns you want to view. Click a check box to display the column. Clear the check box to hide it.
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Group by this field.
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Group table into collapsible rows wherever the current column contains identical data ("field") values.
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Filters.
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Provide a keyword to view only rows that contain the keyword for this column.
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.
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
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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.
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Threshold (percent)
|
Baseline value used to trim ranked device list based on peak or subpeak periods when returning the Top n.
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Chart and visualize data over time (single device )
Charting and visualization is available when you select a single device.
Control
|
Purpose
|
Display Options
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Present data as a chart, a table grid, or both.
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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.
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Chart Options
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- 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.
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: 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.
: This report only returns Interface Errors and Discards metrics for devices that already have the appropriate WMI or SNMP credentials. For more information, see Using Credentials.
: To harvest data for this report, you must enable collection of Interface Utilization performance monitor data collection under Device Properties and ensure the interface data collection configuration option is selected 
.
Share, export, and save as PDF
Most generated Interface Errors and Discards 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:
Troubleshooting
Choose Device.