An engineer associates EPG-A with a VMM domain and sets the Deployment and Resolution preferences to Immediate. The host that will generate endpoints for EPG-A is attached to Leaf- 101 and Leaf-102 us

Question

Options

• AEnable CDP or LLDP on the host.
• BEnable LACP on the leaf switch ports.
• CDisable and enable eth1/1 on both leaf switches.
• DConfigure both ports for trunking.

• A
  87% (45)
• B
  4% (2)
• C
  8% (4)
• D
  2% (1)

Explanation

The scenario involves associating EPG-A with a Virtual Machine Manager (VMM) domain, setting the Deployment and Resolution preferences to Immediate, and attaching the host (generating endpoints for EPG-A) to Leaf-101 and Leaf-102 via eth1/1. However, no configuration for EPG-A is pushed to the leaf switches. This suggests an issue with the discovery or communication between the ACI fabric and the host. The VMM domain integration (e.g., VMware vCenter) relies on protocols like Cisco Discovery Protocol (CDP) or Link Layer Discovery Protocol (LLDP) to detect and map virtualized endpoints to the correct EPG. The "Immediate" preference ensures that policies are applied as soon as endpoints are detected, but this requires proper protocol support for host discovery. No configuration on the leaf switches indicates a failure in endpoint detection or policy Enable CDP or LLDP on the host: ACI uses CDP or LLDP to discover hosts and their interfaces when integrated with a VMM domain. If the host does not have CDP or LLDP enabled, the ACI fabric cannot detect the host’s attachment to Leaf-101 and Leaf-102, preventing EPG-A configuration from being pushed. Enabling these protocols on the host resolves the issue.

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