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.

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

See Also

Network Traffic

Working with NTA reports using the world map



Top Cities

Top Conversations Between Cities

Interface Usage

NBAR Applications - Flow Details

NBAR Applications - Interface Totals

NTA Types of Services (ToS)

Suspicious Connections Report

Packet Size Distribution

Top Protocols

Top Applications

Top Conversations

Top Endpoint Groups

Top Endpoints

ICMP Types

Top Interfaces by Traffic

Top Interfaces by Utilization

Top Sources with Interfaces

Traffic Totals

Unclassified Traffic

Class-Based QoS Usage