Designating a Default RP

Designating a Default RP
This step is somewhat tricky, not so much because the configuration is tricky, but because of the
decision regarding when to execute the step. The only time you need to designate a default RP
is when you are running sparse mode only on any of your interfaces in an existing multicast network.
If you are using sparse-dense mode, as suggested, you do not need to execute this step.
This step is executed as described in the “Manual RP Configuration” section earlier in this
chapter. The default RP becomes the statically mapped RP on all the leaf routers. The default
RP should serve all global multicast groups. That is all that has to be done.