Multicast PIM Auto RP

Hello Parajuli

Although Rene doesn’t go into details in the lesson, a router is configured as a mapping agent using the following command:

ip pim send-rp-discovery

You can find out more about this command at this Cisco Command Reference Documentation (search for ip pim send-rp-discovery.

It is possible to configure two or more mapping agents within a network. Each will function independently. Engineers often misunderstand how multiple mapping agents interact and often believe that there is more complexity to such a configuration than there really is. Receiving mapping data from two or more mapping agents is not a problem because both transmit identical mapping information, so there are never any conflicts.

Conversely, the command ip pim send-rp-announce configures a router as an RP.

I hope this has been helpful!

Laz

2 Likes