Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 611

To configure Anycast RP: Step 1 2 3 4 5 Task Command Syntax In each routing domain that will have multiple RPs serving a group, create a loopback interface on each RP serving the group with the same IP address. Make this address the RP for the group. In each routing domain that will have multiple RPs serving a group, create another loopback interface on each RP serving the group with a unique IP address. Peer each RP with every other RP using MSDP, specifying the unique loopback address as the connect-source. Advertise the network of each of the unique loopback addresses throughout the network. interface loopback ip pim rp-address interface loopback ip msdp peer network Command Mode CONFIGURATION CONFIGURATION CONFIGURATION CONFIGURATION ROUTER OSPF Reducing Source-active Message Flooding RPs flood source-active messages to all of their peers away from the RP. When multiple RPs exist within a domain, the RPs forward received active source information back to the originating RP, which violates the RFP rule. You can prevent this unnecessary flooding by creating a mesh-group. A mesh in this context is a topology in which each RP in a set of RPs has a peership with all other RPs in the set. When an RP is a member of the mesh group, it forwards active source information only to its peers outside of the group. Task Create a mesh group. Command Syntax ip msdp mesh-group Command Mode CONFIGURATION Specify the RP Address Used in SA Messages The default originator-id is the address of the RP that created the message. In the case of Anycast RP, there are multiple RPs all with the same address. You can use the (unique) address of another interface as the originator-id. Task Command Syntax Command Mode Use the address of another interface as the originator-id instead of the RP address. ip msdp originator-id CONFIGURATION R1 Configuration for MSDP with Anycast RP ip multicast-routing ! interface GigabitEthernet 1/1 ip pim sparse-mode ip address 10.11.3.1/24 no shutdown ! Multicast Source Discovery Protocol | 611