A network engineer needs to configure multicast in the network. The implementation will use multiple multicast groups and PIM routers. Which address provides automatic discovery of the best RP for each multicast group?
224.0.1.40 is the multicast group address used by Auto-RP (Automatic Rendezvous Point) to automatically discover and distribute RP information across the network. This simplifies the configuration of multicast networks with multiple multicast groups and PIM routers.
The other options are incorrect:
A. 224.0.0.13: This is used for PIMv2 Hello messages, not RP discovery.
B. 224.0.0.14: This is used for the RIP (Routing Information Protocol) version 2 multicast group.
C. 224.0.1.39: This is used for Cisco-RP-Announce messages in Auto-RP, but not for RP discovery itself.
According to https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16-5/imc-pim-xe-16-5-book/imc-basic-cfg.html D and C should be correct
The address that provides automatic discovery of the best RP (Rendezvous Point) for multiple multicast groups is the "Bootstrap Router (BSR)" address. The BSR address is a reserved multicast address (224.0.0.13) used by routers to exchange information about candidate RPs and multicast group-to-RP mappings in a multicast-enabled network
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