Implementing and Operating Cisco Data Center Core Technologies (DCCOR) — Question 231

An engineer is deploying a VXLAN EVPN environment for a customer. The customer’s environment suffers from a large amount of flooding related to hosts attempting to resolve the MAC to IP mapping on the network segment. Which feature prevents this issue from happening in the future?

Answer options

• A. IP ARP suppression
• B. anycast gateway
• C. IP ARP SYNC
• D. anycast rendezvous point

Correct answer: A

Explanation

The correct answer is A, IP ARP suppression, as it minimizes ARP requests by suppressing unnecessary broadcasts in the network, which helps in reducing flooding. The other options, while relevant to network design, do not specifically address the issue of ARP-related flooding caused by MAC to IP resolution attempts.