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JN0-683 · Question #1

Referring to the exhibit, the spine1 device has an underlay BGP group that in configured to peer with its neighbors' directly connected interfaces. Which two statements are true in this scenario?…

The correct answer is A. The multihop statement is not required to establish the underlay BGP sessions. D. Load balancing for the underlay is configured correctly. The multihop statement is not required to establish the underlay BGP sessions: In this scenario, the BGP peering is done with directly connected neighbors, so the multihop statement is not necessary. The multihop statement is typically used when BGP peers are not directly…

Data center routing and switching technologies

Question

Referring to the exhibit, the spine1 device has an underlay BGP group that in configured to peer with its neighbors’ directly connected interfaces. Which two statements are true in this scenario? (Choose two.)

Exhibit

JN0-683 question #1 exhibit

Options

  • AThe multihop statement is not required to establish the underlay BGP sessions.
  • BLoad balancing for the underlay is not configured correctly.
  • CThe multihop statement is required to establish the underlay BGP sessions.
  • DLoad balancing for the underlay is configured correctly.

How the community answered

(40 responses)
  • A
    83% (33)
  • B
    10% (4)
  • C
    8% (3)

Explanation

The multihop statement is not required to establish the underlay BGP sessions: In this scenario, the BGP peering is done with directly connected neighbors, so the multihop statement is not necessary. The multihop statement is typically used when BGP peers are not directly connected and are separated by intermediate devices. Since the peering is established directly between spine1 and the other devices, no multihop configuration is needed. Load balancing for the underlay is configured correctly: The configuration shows the use of multipath with the multiple-as option, which enables ECMP (Equal-Cost Multi-Path) load balancing for the underlay network. This configuration allows for traffic to be distributed across multiple paths to the BGP neighbors, assuming multiple equal-cost paths exist, and the multiple- as option enables the use of multiple autonomous systems for load balancing.

Topics

#BGP underlay#IP fabric#multihop BGP#ECMP load balancing

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