The purpose of this article is to explain a known behavior.
Symptoms:
When running HCX Service Mesh Diagnostics, the test reports TCP port 902 connection failures from both the HCX Manager IP address and HCX IX management IP address to an empty destination IP. An example of this result is below:
The ESXi hosts selected in the Deployment and / or Service Selection of the respective Compute Profile for this given Service Mesh contain ESXi hosts that have an IPv6 vmkernel adapter address that is designated for management. An IPv6 vmkernel adapter that is designated for management is common in VxRail environments.