# Associating a VLAN with the CIST or an MSTI instance

Use this procedure to associate a VLAN with the CIST or an MSTI instance:

## Procedure steps

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

2. From the VLAN tree, click VLANs.

3. Select the Basic tab.

4. Click Insert.

5. In the MstpInstance field, select the CIST or an MSTI instance from the menu.

6. Populate the other fields as required.

7. Click Insert.