Use this procedure to delete classifier blocks.
From the navigation tree, double-click QoS.
From the QoS tree, double-click QoS Rules.
Select the Classifier Block tab.
Highlight the classifier block to delete.
Click Delete.
You cannot delete the last classifier element in a classifier block if a policy references it. First delete the policy. Additionally, you cannot delete a classifier block if it is either the storage type other or readOnly.