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.

• Issue the ipv6 pim bsr-candidate command in Global Configuration mode to define a router as a BSR candidate:
  host1(config)#ipv6 pim bsr-candidate loopback 1 30 10

  The no version stop the router from acting as a BSR candidate.

• Issue the ipv6 pim rp-candidate command in Global Configuration mode to define a router as an RP candidate:
  host1(config)#ipv6 access-list 1 permit 1001::1 host1(config)#ipv6 access-list 1 permit 1002::1 host1(config)#ipv6 pim rp-candidate loopback 1 group-list 1

  The no version stops the router from being an RP candidate.

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.

Related Documentation

• Understanding PIM for IPv6 Multicast
• Monitoring PIM for IPv6 Multicast
• ipv6 pim bsr-candidate
• ipv6 pim rp-candidate