An administrator enables High Availability (HA) on a Virtual SAN cluster. There are four vmkernel port groups with the following IP addresses assigned: Management: 192.168.12.10 vMotion: 192.168.13.10

192.168.12.10 is the management vmkernel address; while HA uses the management network in non-vSAN clusters, on a vSAN cluster it switches to the vSAN vmkernel adapter.

192.168.13.10 is the vMotion vmkernel address; vMotion is a separate traffic type and is never used for HA communication.

On a vSAN-enabled cluster, vSphere HA automatically uses the vmkernel adapter tagged for Virtual SAN traffic (192.168.14.10) for its communication. VMware designed this behavior so that HA piggybacks on the vSAN network, avoiding reliance on the management network and ensuring consistent behavior within the hyper-converged stack.

192.168.15.10 is the Fault Tolerance vmkernel address; FT logging traffic is distinct from HA communication and is not selected by HA for its own traffic.