Install guide

IP Multicasting 39
6. Configure PIM.
Define PIM interfaces for the VLAN interfaces.
add pim interfacevlan5 mode=dense
add pim interfacevlan4 mode=dense
Enable PIM multicast routing.
enable pim
Confirm multicasting
When the three switches have been configured, RIP takes a few seconds to
distribute the unicast routing information to all routers. Then the IP hosts
connected to these interfaces can send and receive multicasts.
1. Test multicasting.
Test whether IP multicasting is successful by sending IP multicast data
between hosts connected to each of the switches. Check that IGMP report
and leave messages are correctly processed by having hosts leave and join
groups.
2. Check the multicast state.
To check each switch, use the commands:
show pim
show ip igmp
show ip route multicast