NETGEAR M4100, M7100 PIM-SM on Switch C:

Chapter 28. PIM | 475
ProSafe M4100 and M7100 Managed Switches
a. Select Routing > Multicast > PIM > BSR Candidate Configuration.
A screen similar to the following displays.
b. In the Interface list, select the 1/0/10.
c. In the Hash Mask Length field, enter 30.
d. In the Priority field, enter 7.
e. Click Apply.
PIM-SM on Switch C:
1. Enable IP routing on the switch.
a. Select Routing > IP > Basic > IP Configuration.
A screen similar to the following displays.
b. For Routing Mode, select the Enable radio button.
c. Click Apply.
2. Configure 1/0/21 as a routing port and assign an IP address to it.
a. Select Routing > IP > Advanced > IP Interface Configuration.