300-420 · Question #144
Which type of rendezvous point deployment is standards-based and support dynamic RP discovery?
The correct answer is C. bootstrap router. The bootstrap router (BSR) is a standards-based mechanism for dynamically discovering Rendezvous Points (RPs) in Protocol Independent Multicast - Sparse Mode (PIM-SM) networks.
Question
Which type of rendezvous point deployment is standards-based and support dynamic RP discovery?
Options
- AAuto-RP
- BAnycast-RP
- Cbootstrap router
- Dstatic RP
How the community answered
(25 responses)- A4% (1)
- B4% (1)
- C92% (23)
Why each option
The bootstrap router (BSR) is a standards-based mechanism for dynamically discovering Rendezvous Points (RPs) in Protocol Independent Multicast - Sparse Mode (PIM-SM) networks.
Auto-RP is a Cisco proprietary protocol for dynamic RP discovery and is not considered a standards-based mechanism.
Anycast-RP provides redundancy for a configured RP by allowing multiple RPs to share the same IP address, but it does not facilitate dynamic discovery of the RP itself.
The bootstrap router (BSR) is a standards-based PIM-SM feature, defined in RFC 5059, that dynamically elects an RP and distributes RP information to all PIM routers within a multicast domain, supporting dynamic RP discovery.
Static RP requires manual configuration of the RP address on all PIM routers, which offers no dynamic discovery capabilities.
Concept tested: PIM-SM dynamic RP discovery mechanisms
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti/configuration/15-mt/imc-15-mt-book/imc-pim-bsr.html
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