An L4 switch is installed. You can use the same switch for an Identity Server cluster and an Access Gateway cluster, provided that you use different virtual IPs.
One or more Access Gateways is installed.
When you install a new Access Gateway, configure it to use the same Administration Console.
Your DNS server must to be configured to resolve the published DNS names that you specify for your proxy services to the L4 switch.
Persistent (sticky) sessions on the L4 switch is enabled (highly recommended, but not mandatory).
IMPORTANT:If you have created a configuration for one or more of Access Gateways you are going to put in a cluster, you need to carefully select the primary cluster server. The current configuration of the primary cluster server is pushed to the other servers in the cluster. If you have created configurations for the other servers in the cluster, these configurations are overwritten.