Refer to the exhibit. An engineer is troubleshooting an issue where switch LEAF-SW-1 and switch LEAF-SW-2 receive corrupted forwarding and learning information about each other. LEAF-SW-1 and LEAF-SW-

Question

Exhibit

Options

• AOn each switch, run the delete suppress-arp command against interface nve1.
• BOn each switch, configure a different secondary IP address against interface loopback0.
• COn LEAF-SW-1, run the host-reachability protocol bgp command against interface nve1.
• DOn each switch, ensure the same BGP router ID is configured.

• A
  15% (3)
• B
  5% (1)
• C
  75% (15)
• D
  5% (1)

Explanation

In a VXLAN BGP EVPN fabric, each VTEP (NVE interface) must use BGP EVPN as the host- reachability protocol so that MAC/IP information and VTEP reachability are exchanged through the control plane. From the exhibit: LEAF-SW-1 - interface nve1 source-interface loopback0 No host-reachability protocol bgp Host Learning Mode: Data-Plane in show nve interface LEAF-SW-2 - interface nve1 source-interface loopback0 host-reachability protocol bgp configured This mismatch causes one VTEP to rely on data-plane flood-and-learn, while the other uses EVPN BGP control-plane learning, leading to inconsistent and "corrupted" MAC/IP and ARP/ND information between the leaf switches. The fix is to configure LEAF-SW-1 to also use BGP for host reachability: host-reachability protocol bgp

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