ACSP AOS-CX VSF and VSX 3

Question 1

In AOS-CX VSX, what is the primary purpose of the Inter-Switch Link (ISL)?

Accepted Answer

To synchronize control-plane state and pass data traffic between VSX peers

Answer

The ISL carries both synchronized control-plane state (MAC tables, ARP, routing) and acts as a data-plane path when traffic must traverse between VSX peers.

Question 2

What happens to VSX operations if the keepalive link fails but the ISL remains up?

Accepted Answer

Operations continue normally because the ISL is the primary health link

Answer

When only the keepalive fails, VSX continues normally since the ISL remains up and is used for both state sync and peer-alive detection.

Question 3

Which VSX role is elected based on the configured priority value, with a higher number winning?

Accepted Answer

Primary

Answer

The VSX Primary role is elected based on priority; the switch with the higher configured priority becomes Primary and typically owns the active gateway functions.

Question 4

In VSX, what is the Active Gateway feature used for?

Accepted Answer

Providing a shared virtual IP and MAC so both VSX peers can route traffic locally

Answer

Active Gateway assigns both VSX peers the same virtual IP and virtual MAC, allowing each peer to locally route traffic without bouncing across the ISL.

Question 5

When configuring a VSX MCLAG (Multi-Chassis LAG), what must be consistent on both VSX peers for the LAG to function correctly?

Accepted Answer

The LACP system-ID and port-channel configuration must match

Answer

MCLAG requires the same LACP system-ID (configured as VSX system-MAC) and matching port-channel parameters on both peers so the downstream device sees a single logical LAG.

(ACSP) Aruba Certified Switching Professional Practice Test

(ACSP) Aruba Certified Switching Professional Practice Test

ACSP AOS-CX VSF and VSX 3