The statement that eiBGP Load Balancing is enabled in the config>router>bgp context is false. This feature is specific to a Virtual Private Routed Network (VPRN) service and is configured within the service context itself. The correct command path is config>service>vprn>eibgp-load-balancing. The global BGP context is used for base protocol configuration, whereas service-specific BGP behaviors like eiBGP load balancing are configured within the VPRN instance to which they apply.

A. ecmp and multipath are indeed prerequisites. For any BGP-based load balancing to occur within a VPRN, these commands must be explicitly enabled in the config>service>vprn>bgp context.

B. This is a fundamental BGP loop-prevention mechanism. For a PE to accept a VPN-IP route from a remote PE for a prefix it also learns locally, the Route Distinguisher (RD) of the remote PE must be different.

D. This statement accurately describes the core function of eiBGP load balancing: it enables a PE to load share traffic for a specific destination across a direct eBGP path to a CE and an indirect MP-iBGP path through another PE.

1. Nokia 7750 SR OS Services Guide, Release 21.10.R1, Document Part Number: 3HE 17194 AAAD TQZZA, Section: VPRN Services > eiBGP Load Balancing.

This section explicitly states, "To enable eiBGP load balancing for a specific VPRN, the config>service>vprn>eibgp-load-balancing command must be configured." This directly refutes option C.

The same section confirms option A: "In addition, the ecmp and multipath commands must be configured in the config>service>vprn>bgp context."

It also confirms option B regarding the RD: "For eiBGP load balancing to work, the RD of the VPRN on PE1 must be different from the RD of the VPRN on PE2."

The introductory paragraph confirms option D: "The 7750 SR supports eiBGP load balancing, which allows a PE to forward traffic to a destination CE using both a direct CE-PE eBGP link and an indirect path through another PE..."