Refer to the exhibit. There is a BGP traffic path issue between Customer-1 and Customer-2. Users from Customer-2 have reported file transfer issues. High utilization on the path between both customers

Question

Exhibit

Options

• AR4#router bgp 65504
• BR4#router bgp 65504
• CR1#neighbor 10.0.23.3 route-map LOCAL-PREF-150 out
• DR1#neighbor 10.0.24.4 route-map LOCAL-PREF-150 in

• A
  4% (2)
• B
  76% (42)
• C
  7% (4)
• D
  13% (7)

Explanation

This question involves BGP path selection to resolve high utilization between Customer-1 and Customer-2. BGP Local Preference is an iBGP attribute used to influence outbound path selection within an AS - a higher Local Preference value is preferred. When traffic is concentrated on one path causing congestion and packet drops, traffic engineering via Local Preference on a specific BGP neighbor can redirect flows to a less-utilized path. Answer B represents the correct configuration applied to the right router and neighbor to shift traffic. Options A uses an identical label but applies to a different router/neighbor context. Options C and D apply Local Preference in the wrong direction or to the wrong neighbor - Local Preference must be set on an inbound route-map ('in') from the neighbor whose routes should be preferred, and applied on the router making the path selection decision.

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