Unified Access Gateway for end-user computing products and services needs high availability for Workspace ONE and VMware Horizon on-prem deployments. Unified Access Gateway appliances work with standard third-party load balancing solutions that are configured for HTTPS and also has an out-of-the-box High Availability solution. The out-of-the-box HA solution will reduce complexity and lower your TCO but it comes with the following limitations.

• IPv4 is supported for floating Virtual IP address. IPv6 is not supported. 
• Only TCP high availability is supported. 
• UDP high availability is not supported. 
• With the VMware Horizon use case, only XML API traffic to Horizon Connection Server uses high availability. High availability is not used to distribute load for the protocol (display) traffic such as Blast, PCoIP, RDP. Therefore, the individual IP addresses of Unified Access Gateway nodes must also be accessible to VMware Horizon clients in addition to the Virtual IP address.

To overcome some of the limitations you can use NSX-T Data Center logical load balancer as a load balancing solution in front of the UAG’s.

In this blog post, I would like to show you how to configure a load balancer for UAG’s in NSX-T in front of a Horizon environment.

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