# Adding classifier blocks

Use this procedure to add classifier blocks.

## Procedure steps

1. From the navigation tree, double-click QoS.

2. From the QoS tree, double-click QoS Rules.

3. Select the Classifier Block tab.

4. Click Insert.

   The Insert Classifier Block screen opens.

5. Enter the name of the classifier block.

6. Select the Classifier, Meter, and Action.

7. Click Insert.

   | Note
   | If one of the classifiers in a classifier block has associated actions or meters, then all classifier elements of that classifier block must also have associated actions or meters (not identical values for the actions or meters, but also associated actions or meters). Entries with the same BlockNum belong to the same classifier block. Click on the BlockNum column header to sort the table by Block Number value.