Configuring BSR and RP Candidates for PIM Sparse Mode for IPv6

When choosing candidate BSRs or candidate RPs, select well-connected routers in the core of the network.

Typically, candidate BSRs are a subset of the candidate RPs. A single BSR is elected for the domain the set of candidate BSRs. The elected BSR floods bootstrap messages (BSMs) containing their group-to-RP mappings to all PIM routers. PIM routers use the group-to-RP mappings supplied by the elected (or preferred) BSR.

Candidate RPs are routers that are capable of performing as a rendezvous point router for one or more multicast groups. Candidate RPs periodically advertise the set of groups they support to BSRs. A candidate RP may support all the multicast group address range or any subset thereof. You can achieve redundancy by configuring more than one candidate RP for a group or range of groups.

Note: You can configure multicast on IPv4 and IPv6 interfaces. For information about configuring PIM on IPv4 interfaces, see Configuring PIM for IPv4 Multicast .
For information about configuring IP interfaces, see Configuring IP in the JunosE IP, IPv6, and IGP Configuration Guide. For information about configuring IPv6 interfaces, see Configuring IPv6 in the JunosE IP, IPv6, and IGP Configuration Guide.

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