300-420 · Question #24
Which nonproprietary mechanism can be used to automate rendezvous point distribution in a large PIM domain?
The correct answer is B. BSR. BSR (Bootstrap Router) (B) is the standards-based, nonproprietary mechanism for distributing Rendezvous Point (RP) information across a PIM domain, defined in RFC 5059. Candidate-BSRs and Candidate-RPs advertise themselves, and the elected BSR floods RP-set messages to all PIM…
Question
Which nonproprietary mechanism can be used to automate rendezvous point distribution in a large PIM domain?
Options
- AEmbedded RP
- BBSR
- CAuto-RP
- DStatic RP
How the community answered
(58 responses)- A2% (1)
- B91% (53)
- C3% (2)
- D3% (2)
Explanation
BSR (Bootstrap Router) (B) is the standards-based, nonproprietary mechanism for distributing Rendezvous Point (RP) information across a PIM domain, defined in RFC 5059. Candidate-BSRs and Candidate-RPs advertise themselves, and the elected BSR floods RP-set messages to all PIM routers. Auto-RP (C) is a Cisco proprietary mechanism that predates BSR and performs a similar function but is not an open standard. Embedded RP (A) is specific to IPv6 PIM and encodes the RP address within the multicast group address itself - it is not applicable for general large IPv4 PIM domains. Static RP (D) requires manual configuration on every router and does not automate distribution.
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