VMware NSX-T Data Center (VCP-NV 2020) — Question 12

An NSX administrator is using ping to check connectivity between VM1 running on ESXi1 to VM2 running on ESXi2. The ping tests fails. The administrator knows the maximum transmission unit size on the physical switch is 1600.
Which command does the administrator use to check the VMware kernel ports for tunnel end point communication?

Answer options

• A. esxcli network diag ping -H <destination IP address>
• B. vmkping ++netstack=geneve -d -s 1572 <destination IP address>
• C. vmkping ++netstack=vxlan-d -s 1572 <destination IP address>
• D. esxcli network diag ping -I vmk0 -H <destination IP address>

Correct answer: C

Explanation

The correct answer is C because it uses the vxlan-d netstack, which is appropriate for checking tunnel communication in NSX. Option A is not specific to the tunnel endpoints, while B uses the geneve netstack which is not applicable here. Option D also does not target the correct netstack for tunnel endpoints.