HPE Aruba Certified Network Security Expert (ACNSX) — Question 44

An administrator is defining a VSX LAG on a pair of AOS-CX switches that are defined as primary and secondary. The VSX LAG fails to establish successfully with a remote switch; however, after verification, the remote switch is configured correctly. The administrator narrows down the problem to the configuration on the
AOS-CX switches.
What would cause this problem?

Answer options

• A. Local optimization was not enabled on the VSX LAG
• B. The VSX LAG hash does not match the remote peer
• C. The VSX LAG interfaces are in layer-3 mode
• D. LACP was enabled in active mode on the VSX LAG

Correct answer: C

Explanation

The correct answer is C because the VSX LAG must be configured in layer-2 mode to establish a successful connection with the remote switch. If the interfaces are in layer-3 mode, they will not communicate correctly for a VSX LAG. The other options do not specifically relate to the inability to establish the LAG connection as described.