HPE Aruba Certified Campus Access Expert (ACAEX) — Question 32

You are troubleshooting an issue with a pair of Aruba CX 8360 switches configured with VSX. Each switch has multiple VRFs. You need to find the IP address of a particular client device with a known MAC Address. You run the “show arp” command on the primary switch in the pair but do not find a matching entry for the client MAC address.

The client device is connected to an CX 6100 switch by VSX LAG.

Which action can be used to find the IP address successfully?

Answer options

• A. Run the following command on the CX 6100 switch: show arp all-vrfs
• B. Run the following command on the VSX primary switch: show mac-address-table
• C. Run the following command on the VSX secondary switch: show arp summary
• D. Run the following command on the VSX primary switch: show arp all-vrfs

Correct answer: A

Explanation

The correct answer is A because running 'show arp all-vrfs' on the CX 6100 switch will display the ARP table across all VRFs, allowing you to find the IP address associated with the MAC address. The other options do not provide the necessary information since B and D are focused on the primary switch's ARP table, and C does not access the VRF information needed.