fernandoquinino wrote:
In this scenario of failure nothing happens because master host remains receiving heartbeats. So, my virtual machines using this vSwitch haven't any network connectivity and they still on in a host with network failure.
First, the actual vSwitches only exists in ESXi memory and should not be able to failure by themself. If you mean all incoming physical NICs fail into a vSwitch then the vSwitch will still "live", but only be able to communicate with other VMs on the same host and vSwitch.
If I understand your general question correct then you are right in that HA only detects host failures, in the sense that ESXi is either down (or lost access on the Management network and/or the storage network). However, there is nothing in HA that can detect if all paths to a vSwitch with only VMs have failed. So if the Management network is up, but all links to your VM vSwitch is down - then no HA action will take place.