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350-601 · Question #51
350-601 Question #51: Real Exam Question with Answer & Explanation
The correct answer is A: It eliminates the recommendation to pin the STP root to the vPC primary switch.. The vPC peer-switch feature enhances Layer 2 stability by making both vPC peers appear as a single STP root, eliminating the need to pin the STP root and simplifying STP configuration across the vPC domain.
Network
Question
Which three options are benefits of the vPC peers switch feature? (Choose 3)
Options
- AIt eliminates the recommendation to pin the STP root to the vPC primary switch.
- BIt allows a pair of the vPC peer devices to appear as a single STP root in the Layer 2.
- CAfter the peer link comes up, it performs an ARP bulk sync over CFSoE to the peer switch.
- DIt improves convergences for Layer 3 flows.
- EIt simplifies STP configuration by configuration both vPCs with the same STP priority.
Explanation
The vPC peer-switch feature enhances Layer 2 stability by making both vPC peers appear as a single STP root, eliminating the need to pin the STP root and simplifying STP configuration across the vPC domain.
Common mistakes.
- C. While ARP bulk synchronization is an important aspect of vPC operation, it is a general function of vPC for state consistency, not a specific benefit or direct consequence of the vPC peer-switch feature.
- D. The vPC peer-switch feature primarily focuses on Layer 2 control plane behavior and STP convergence, and does not directly improve Layer 3 flow convergence, which is typically handled by routing protocols and ECMP.
Concept tested. vPC peer-switch feature and STP interaction
Topics
#vPC peer-switch#Spanning Tree Protocol#Layer 2 Switching#Cisco Nexus
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