Use the following procedure to set the C-BSR priority on a VLAN from the VLAN menu.
Open one of the supported browsers.
Enter the IP address of the switch to open an EDM session.
From the navigation tree, double-click VLAN.
In the VLAN tree, double-click VLANs.
In the Basic tab, select the VLAN ID that you want to configure with PIM.
In the toolbar, click IP.
The IP, VLAN tab appears.
In the work area, click the PIM tab.
In the CBSRPreference field, type the value of the C-BSR priority.
In the toolbar, click Apply.