Implementing Cisco Application Centric Infrastructure (DCACI) — Question 266

A network engineer configures a Cisco ACI fabric with this configuration:
• Endpoint-1 with an IP address 10.1.0.1/24 is attached to Leaf-101.
• Endpoint-2 with an IP address 10.1.0.2/24 is attached to Leaf-102.
• Both endpoints are in EPG-A.
• The bridge domain for EPG-A is called BD-A and contains a single subnet 10.1.0.254/24.
• Endpoint-1 cannot reach Endpoint-2.

Which action allows Endpoint-1 to communicate with Endpoint-2?

Answer options

• A. Set L2 Unknown Unicast to Hardware Proxy.
• B. Configure a contract between the endpoints.
• C. Create a contract with a preferred group.
• D. Enable silent host detection.

Correct answer: A

Explanation

Setting L2 Unknown Unicast to Hardware Proxy allows the ACI fabric to handle unknown unicast traffic efficiently, which is crucial for communication between the endpoints in different leaf switches. Configuring a contract is necessary for policy enforcement but does not directly address the issue of unknown unicast traffic. A contract with a preferred group and enabling silent host detection are not relevant to resolving this specific connectivity problem.