Which protocol is a Cisco proprietary mechanism that permits backup RPs to be configured for failover?
- phantom RP
- embedded RP
- Auto-RP
- Anycast-RP
Explanation: Auto-RP is a Cisco proprietary mechanism designed to automate the distribution of Rendezvous Point (RP) information within a multicast network. It operates using candidate RPs, which announce their availability, and RP-mapping agents, which map those RPs to specific multicast groups.
A primary benefit of Auto-RP is that it permits backup RPs to be configured, which enables an effective failover mechanism should the primary RP become unavailable. In contrast, the Bootstrap Router (BSR) mechanism is identified as a nonproprietary method. While Anycast-RP can also provide redundancy, the sources specifically highlight Auto-RP as the Cisco proprietary tool that automates this process and supports backup RP configurations.
Related exam: Modules 8 – 13: Checkpoint Exam: Network Routing Answers (CCNP ENCOR v9)
