Top Ports

The Top Ports dashboard report displays the top TCP or UDP ports used the most. Port usage data can be used to determine if new or unapproved applications are in use, and can be used to assist in port to application mapping that generates the Top Applications report. You can choose to display and sort sender traffic by bytes, packets, or flows using the report settings dialog. Providing alternate sorting methods allows you to monitor and identify hosts that are the largest consumers of interface resources other than bandwidth.

Note: When ports in a flow are not configured in any application, the port number saved is 0. A second record is created in the Unclassified table which contains the initial flow source and destination ports.

Port. Displays the port associated with the application.
Bytes. Displays the total number of bytes transmitted for the specific item in the report category for the selected date range.
Bit Rate. Displays the average bit rate in multiples of the selected unit (e.g., Kbps, Mbps, or Gbps) for the specific item in the report category for the selected date range.
Byte Percentage. Displays the percentage of the total traffic for the specific item in the report category for the selected date range.

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

Packets. Percentage of the total traffic.
Packet Rate. Average packet rate.
Packet Percentage. Percent of packets for this category.
Flows. Total number of flow messages.
Flow Rate. Rate at which WhatsUp Gold receives measurements observed at the device.
Flow Percentage. Percentage of total measurement for samples received.
Utilization. Fraction of interface capacity needed for application traffic.