In Cisco ACI, silent endpoints are devices that do not send traffic until they receive it (e.g., IoT devices, printers, or certain servers). Detecting silent endpoints in a Layer 3 Bridge Domain (BD) requires specific configurations to ensure that these endpoints are discovered and learned by the fabric.
To detect all silent endpoints for the Layer 3 bridge domain in a Cisco ACI fabric, Option A is the correct answer:
Explanation:
1. Enable Unicast Routing:
• Enabling unicast routing ensures that the bridge domain is treated as a Layer 3 domain, allowing endpoint discovery using ARP requests and routing functionalities.
2. Disable ARP Flooding:
• Disabling ARP flooding ensures that ARP requests are not broadcasted indiscriminately across the fabric. Instead, Cisco ACI leverages ARP Gleaning and hardware proxy to manage ARP requests efficiently, which is required for silent endpoint detection.
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