This article provides information on vCenter Single Sign-On and the Platform Services Controller compatibility regarding the use of qualified load balancers that supply high availability as well as their requirements between versions of vSphere.
Only local load balancers (often times referred to as LTM, or Local Traffic Manager) are supported for PSC HA.
Note: VMware does not support the configuration or setup of the load balancer used to provide high availability within a vSphere environment. If problems are experienced when the third-party load balancer is used for Platform Services Controller high availability, VMware offers best effort support for any issues encountered with the environment. However, VMware reserves the right to not support the environment until a compatible load balancer is used. For more information, see the VMware
third-party hardware and software support.