Adding or deleting a multicast group address

Use this command if you need to modify the multicast address group configuration for a C-RP on the router.


[no] rp-candidate group-prefix [group-addr | group-mask]

Adds a multicast group address to the current C-RP configuration. Requires that the source IP VLAN (See Specifying the source IP VLAN (optionally configuring multicast groups or range of groups)) is already configured. The no form of the command removes a multicast group address from the current C-RP configuration.

This command does not enable or disable RP candidate operation.


An RP candidate supports up to four separate multicast address groups. If only one group-prefix address exists in the router PIM configuration, you cannot delete it unless you first add another group-prefix address.