What command is used to manually configure the RP on routers?

The command to manually configure the Rendezvous Point (RP) for Protocol Independent Multicast (PIM) in a router involves using the "ip multicast-routing" command followed by "ip pim rp-address." This sequence of commands starts by entering the global configuration mode with "config t," which allows for subsequent commands to affect the router's configuration.

Specifically, "ip multicast-routing" enables multicast routing on the router, while the "ip pim rp-address" command specifies the IP address of the RP that multicast sources will use to send their data. This configuration is essential in PIM Sparse Mode, where the RP serves as a central point for multicast group management and traffic flow. By defining the RP manually, the network designer ensures that certain multicast traffic is handled as expected through specific paths in the multicast network.

The other options do not correctly represent the required commands or syntax to perform this configuration. This emphasizes the importance of understanding the precise commands needed for multicast routing and the role of the RP in managing multicast traffic within a network.