Implementing Cisco Application Centric Infrastructure (DCACI) — Question 157

An organization has encountered many STP-related issues in the past due to failed hardware components. They are in the process of long-term migration to a newly deployed ACI fabric. Senior engineers are worried that spanning-tree loops in the existing network may be extended to the ACI fabric. Which feature must be enabled on the ACI leaf ports to protect the fabric from spanning-tree loops?

Answer options

• A. BPDU Guard
• B. per-VLAN MCP
• C. Storm Control
• D. BPDU Filter

Correct answer: B

Explanation

The correct answer is B, per-VLAN MCP, as it is specifically designed to prevent spanning-tree loops in an ACI environment. The other options, such as BPDU Guard and BPDU Filter, are useful for different scenarios but do not directly address the concern of extending spanning-tree loops into the ACI fabric.