An engineer is designing a multicast network for a company specializing in VoD content. Receivers are across the Internet, and for performance reasons, the multicast framework must be close to the…

Bidirectional PIM (PIM-BiDir) is optimized for many-to-many communication but does not inherently provide the RP redundancy and inter-AS source failover capabilities required.

SSM (Source-Specific Multicast) requires receivers to explicitly know the source address and does not use an RP, thus it cannot provide the RP redundancy or source failover mechanism needed for this scenario.

Anycast RP provides redundancy and locality for Rendezvous Points by allowing multiple RPs to share the same IP address, ensuring receivers connect to the closest available RP. This design enhances high availability and allows sources from different ASs to register with the shared RP, enabling failover if a local source becomes unavailable.

MSDP (Multicast Source Discovery Protocol) is used to discover active multicast sources in other PIM-SM domains but does not provide the inherent RP redundancy or local RP selection that Anycast RP offers.