ip pim anycast-rp

Use this command to configure an anycast Rendezvous Points (RP) set member for a multicast group.

Syntax

Parameters

Defaults

None.

Mode

Configuration command.

Usage

The relationship between a source or receiver and the PIM RP router is a one-to-one relationship. The relationship between a source or receiver and an anycast-RP set of routers is a one-to-many relationship, where one of multiple anycast configured RPs is selected by the routing protocol to be the source or receiver RP. The purpose of anycast-RP is to provide a means of fast convergence when a PIM RP router fails.

Anycast-RP provides for the selection of a set of routers to be identified as anycast RPs by configuring:

• A loopback interface with the same IP address for each anycast-RP router in the set
• Either a second loopback interface or another hardware interface to be configured with a unique address for this peer of the anycast-RP set

Each anycast-RP router is configured with the same anycast-RP address and all the peer-addresses of each router in the anycast-RP router set. Each anycast-RP and peer-address combination is configured in its own command line entry using the ip pim anycast-rp command.

The routing protocol determines which member of the anycast-RP router set will function as the PIM RP router. Should the PIM RP router fail, the routing protocol determines the next anycast-RP router that will become the new PIM RP router, based upon the routing protocol‘s routing criteria. Should the failed router return to an operational state, the routing protocol will determine whether a new PIM RP will be selected based upon current conditions.

The “no” form of this command removes a single anycast-RP configuration from the anycast-RP set.