# Collecting statistics based on QoS Classes

QoS Class-based statistics items are available even when QoS is not used for bandwidth management and traffic prioritization.

Selecting the “QoS Statistics Only” QoS Mode for an interface allows the collection of QoS Class-based counters without activating any other QoS feature. No QoS Policy is needed in this case, but you must define Access rules to apply QoS Classes to traffic. QoS Class-based statistics items can be used in Overviews and Reports.