Dell Z9000 Configuration Manual page 238

If you exceed the QoS CAM space, follow these steps.
1. Verify that you have configured a CAM profile that allocates 24 K entries to the IPv4 system flow
region.
2. Allocate more entries in the IPv4Flow region to QoS.
Dell Networking OS supports the ability to view the actual CAM usage before applying a service-policy.
The test cam-usage service-policy command provides this test framework. For more information,
refer to Pre-Calculating Available QoS CAM
238
Space.
Content Addressable Memory (CAM)