Thanks for respond.
What if we lost the connectivity between main office and branch office. In this case what is the best solution for branch users to access VDI.
Some customers will implement VDI at each of their branches using a ROBO VSAN or HCI hardware so it's all self contained. If the branch still has connectivity but the main office does not you could deploy a Horizon pod in a different data center. You could also look at redundant MPLS connections to all of your branch offices for carrier diversity.