300-620 DCACI: Implementing Cisco Application Centric Infrastructure

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QuestionQ19

ACI Fabric Infrastructure

A Cisco ACI environment contains multiple silent hosts that are frequently moved between leaf switches. After a host is moved, the bridge domain requires more than a few seconds to relearn the host’s new location. The requirement is to minimize the impact of relocation and enable the ACI fabric to relearn the host’s new location more quickly. Which action must be taken to meet these requirements?

Explanation

Enabling ARP flooding floods ARP requests throughout the bridge domain. A silent host that has moved can receive the ARP request at its new location and respond, enabling the fabric to update its endpoint location instead of continuing to send ARP only toward the stale location until the endpoint ages out.

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