A service provider has 10 exit points for the Internet.
The BGP architecture deployed in this service provider contains two route reflectors.
An operations engineer must provide a solution where each BGP router must select at least four BGP next hops from the BGP prefixes that are learned from the exit points.
Which BGP feature achieves this goal with the least amount effort?
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A. B. C. D. E.C.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-16/irg-xe-16-book/irg-diverse-path.htmlTo meet the requirement of selecting at least four BGP next hops from the BGP prefixes learned from the exit points, the BGP feature that can be used is BGP Diverse Path.
BGP Diverse Path is a feature that allows the selection of multiple paths for the same prefix based on the number of AS hops or the number of IGP hops. This feature allows a router to select multiple best paths to the same destination based on different metrics.
In this scenario, if the service provider has 10 exit points for the Internet, the two route reflectors in the BGP architecture can advertise the BGP prefixes learned from the exit points to all the BGP routers in the service provider network. By enabling the BGP Diverse Path feature, each BGP router can select at least four BGP next hops from the BGP prefixes learned from the exit points based on the number of AS hops or the number of IGP hops.
Other options listed in the question are:
A. BGP Additional Path - This feature allows the advertisement and installation of multiple paths for the same prefix. However, it does not guarantee the selection of a specific number of BGP next hops from the BGP prefixes learned from the exit points.
B. BGP Link State - This feature is used in conjunction with the Intermediate System-to-Intermediate System (IS-IS) protocol to exchange BGP routing information between BGP routers. It does not directly address the requirement of selecting a specific number of BGP next hops from the BGP prefixes learned from the exit points.
D. BGP Selective Route Download - This feature is used to selectively download BGP routes to non-BGP routers in a service provider network. It does not directly address the requirement of selecting a specific number of BGP next hops from the BGP prefixes learned from the exit points.
E. BGP Partial Mesh - This feature is used to reduce the number of BGP peerings in a service provider network by configuring some BGP routers as route reflectors. It does not directly address the requirement of selecting a specific number of BGP next hops from the BGP prefixes learned from the exit points.