Auto-RP Configuration

Auto-RP Configuration
Because multiple RPs can exist in a multicast network, the Auto-RP function aids by distributing
the RP information across a multicast network. Different multicast groups can use different RPs,
so this feature keeps track of which groups are using which RP. It will also fine-tune the leaf
router’s RP by choosing the RP nearest to the leaf. If you don’t like to use static routes in a unicast
network, you probably don’t want to statically configure multicast RPs either.
There are also two procedures that can be used to enable Auto-RP; which one you use
depends on the state of your multicast network. If you are beginning a new deployment, it isn’t
necessary to create a default RP. If you are modifying an existing multicast network, you need
to designate a default RP router in the network.
Here is a list of configuration tasks that must be completed to successfully implement Auto-RP
in a multicast network:
 Designate a default RP (only when modifying an existing multicast network).
 Advertise each RP and the multicast groups associated with the RP.
 Enable an RP Mapping Agent.
As you can see, the list is short and simple. Now that you know what has to be done, let’s
discuss each step individually.