This health test checks the network latency between vSAN hosts and displays the network latency in real time.

Failure indicates that the network latency is above the normal threshold. The tables included in this health check display the following:

• Only failed network latency check results. This table includes the failed ping results and other details. The result show a warning status. The yellow sign indicates that the ping latency is above 5 ms. The sign is green if the latency is less than 5 ms.
• Network latency check results. This table shows all ping results, including passed results, that you can inspect.

Check other network health check items for misconfiguration information. Check the network conditions between the cluster nodes that report any issues.

For more information on collecting VMware vSAN logs, see Collecting vSAN support logs and uploading to VMware (2072796).

Also, see:

• VMware vSAN documentation on the VMware Virtual SAN Documentation site
• VMware vSAN Diagnostics and Troubleshooting Reference Manual
• VMware vSAN Design and Sizing Guide