A customer deploys a media server to distribute streaming videos to network clients. The requirement is to allow the video feed to reach only requesting clients. The shared trees must not propagate the video feed if no clients from that tree request it. To reduce configuration touchpoints, the solution must support the automatic discovery and announcement of RP-set information. Each router in the network is responsible for selecting the RP. Which configuration set meets these requirements?
The correct configuration set to allow the video feed to reach only requesting clients, while supporting the automatic discovery and announcement of RP-set information, and ensuring that each router in the network handles the selection of the RP, involves using PIM sparse mode with bootstrap router (BSR) election. This configuration leverages PIM's capability to function efficiently in sparse mode, where only requesting clients receive the video feed. The BSR mechanism helps in automatic discovery and announcement of RP-set information and is part of the PIM version 2 specification. The command set includes enabling sparse mode, specifying a BSR-candidate, and an RP-candidate, fulfilling the requirements stated.
D is correct BSR Election and Functionality PIM uses the BSR to discover and announce RP-set information for each group prefix to all the routers in a PIM domain. This is the same function performed by Auto-RP, but the BSR is part of the PIM Version 2 specification. The BSR mechanism interoperates with Auto-RP on Cisco routers. https://www.cisco.com/en/US/docs/ios/12_4t/ip_mcast/configuration/guide/mctbasic.html .|.
answer is D, using boot strap router. C is incomplete command
C does not have all commands required so must be D
Option C is missing: ip pim send-rp-discovery
see https://www.cisco.com/en/US/docs/ios/12_4t/ip_mcast/configuration/guide/mctbasic.html#wp1058990