Guest virtual machines fail to detect the network connectivity loss

In a VCS cluster that is configured in a VMware environment, if the ESX host loses its network connectivity, the guest virtual machines residing on the ESX host fail to detect the network loss. The configured virtual IP address remain online even though the underlying network has disconnected. (2901327)

In case of a failover, the application successfully starts on a virtual machine that resides on another ESX host and the configured virtual IP address is accessible over the network. However, when you attempt to failback the application to the original virtual machine, the application status shows "online" but the configured virtual IP address is not accessible.

Workaround: Configure the "PingHostList" attribute for the VCS NIC agent. For more details, refer to the Cluster Server Bundled Agents Reference Guide.