Configuring BSR and RP Candidates for PIM Sparse Mode for IPv4
When choosing candidate BSRs, 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 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.
- Issue the ip pim bsr-candidate command in Global Configuration mode to define a router as a BSR
candidate:host1(config)#ip pim bsr-candidate loopback 1 30 10
The no version disables the router BSR candidacy.
- Issue the ip pim rp-candidate command in Global Configuration mode to define a router as an RP
candidate:host1(config)#access-list 1 permit 227.0.0.0 15.255.255.255 host1(config)#access-list 1 permit 228.0.0.0 15.255.255.255 host1(config)#ip pim rp-candidate loopback 1 group-list 1
The no version stops the router from being an RP candidate.
 | Note: You can configure PIM on IPv4 and IPv6 interfaces. However, IPv6 does not support all PIM configuration options. For information about configuring PIM on IPv6 interfaces, see the Configuring PIM for IPv6 Multicast chapter of JunosE Multicast Routing Configuration Guide. |
