Top Sources with Interfaces

Top Sources with Interfaces reveals interface metrics grouped by the flow source that exports them.

Identifying data transfer rate and capacity utilization from specific points on your network enables you to:

Identify packet choke points by checking where send or receive utilization is close to capacity.
Plan scaling and build out periods. Track high traffic routes over time.
Sanity check load balancing and track ToS-specific policies applied at routers.
Localize disruptive traffic to a specific router or interface.
Drill down into specific flow sources and configuration properties () of a particular network interface.
Be proactive.

Understand column data

The default view of each report contains a grid with the following columns:

Interface. Device hostname, IP address, or custom label grouped by Source with Ethernet port index. Index of 0 denotes the NULL interface.
Incoming Bytes. Number of bytes received. (Use Report Settings Sort by option to rank the list by packet or flow count, not bytes.)
Incoming Rate. Total average rate of inbound traffic.
Incoming Utilization. Fraction of total bandwidth capacity used. "N/A" denotes the measurement cannot be calculated because the bandwidth capability is unknown for the current interface.
Outgoing Bytes. Total bytes transmitted from the interface.
Outgoing Rate. Total average rate of outbound traffic.

To display Flow and Packet measurements, click a column heading () for column selection list (). You can also include:

Source Name. Device hostname, IP address, or custom label.
Interface Name. Textual name of the interface (ifName).
SNMP Index. Network interface SNMP table identifier (ifIndex).
In Speed. Inbound hardware speed.
Out Speed. Outbound hardware speed.
Tip: To show reports in full screen with most if not all possible columns, click on report options ( ) menu and choose Expand ().

Generate a report

Choose source. , Choose a networking device or single physical or virtual interface you want to see Top Sources with Interfaces measurements for. Choose traffic direction across an interface.

Choose time constraints. (,) Choose times for the Top Sources with Interfaces. (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).

Share, export, and save as PDF

Most generated Top Sources with Interfaces 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 Top Sources with Interfaces data and leverage outside of WhatsUp Gold.
Schedule Export. Set a recurring date and time, format, and email destination for report data export.

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 (Inbound, Outbound, Inbound and Outbound, or Bounce for invalid traffic.).
Network.	Network devices known to NTA.

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.