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Question 30 - JN0-682 discussion

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You want to enable an EBGP-based IP fabric to allow ECMP routes to be populated into the RIB. In this scenario, which action will accomplish this task?

A.
Enable the forwarding-options ecmp-do-local-lookup parameter.
Answers
A.
Enable the forwarding-options ecmp-do-local-lookup parameter.
B.
Enable the multipath multiple-as BGP parameter.
Answers
B.
Enable the multipath multiple-as BGP parameter.
C.
Enable the routing-options multipath global parameter.
Answers
C.
Enable the routing-options multipath global parameter.
D.
Enable the chassis ecmp-alb parameter.
Answers
D.
Enable the chassis ecmp-alb parameter.
Suggested answer: B

Explanation:

To enable ECMP (Equal-Cost Multi-Path) routes in the Routing Information Base (RIB) in an EBGP-based IP fabric, you should enable the 'multipath multiple-as' BGP parameter. This setting allows the use of multiple paths for BGP routes even when they come from different autonomous systems, which is key in a typical EBGP deployment in a data center IP fabric.

Reference:

BGP and Multipath Routing

asked 18/09/2024
Jerin cherian
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