About the NBAR and CBQoS Reports

NBAR Report

Cisco Systems Network Based Application Recognition (NBAR) classification engine provides a network device with the ability to recognize applications, including those that dynamically assign TCP or UDP ports. The Top NBAR Applications report displays the top applications as identified using Cisco's NBAR classification engine.

• Application. Displays the application as identified by Cisco's NBAR classification engine.
• Bytes. Displays the total number of bytes for the selected time period.
• Throughput. Displays the number of bytes per second used by the application.
• Usage. Displays the percentage of the total available bandwidth used by the application.
• Percent of Top n. Displays the percentage ranking of the application within the top "n" applications.

Note: The source device must be configured to generate NBAR information in order for this report to generate data for the source device.

Note: For the Top NBAR Applications - Flow Details report, NBAR information generated by the source device is gathered by Flow Monitor from flow data using Flexible NetFlow.

Note: For the Top NBAR Applications - Interface Totals report, the NBAR information is gathered from the source device using SNMP polling. The Poll source for NBAR information option is available on the Flow Source dialog.

Class Based Quality of Service Report

The Class Based Quality of Service (CBQoS) report provides information about the effectiveness of class-based policies applied to an interface for all of the defined classes.

• QoS Class Map. Displays the QoS class name as defined by the policy assigned to the interface.
• Pre-Policy. Displays the amount of traffic for the class before the policy is applied.
• Post-Policy. Displays the amount of traffic for the class after the policy is applied.
• Dropped. Displays the number of bytes dropped as a result of applying the policy to the class.

Note: You must have defined QoS classes and policies on the source device before this report is able to display results.

Note: The CBQoS information generated by the source device must be gathered using SNMP polling for CBQoS information.