Tunnel Concentrator supports tunnel redundancy and failover between multiple instances of the application. Redundancy ensures that tunneling services remain active even if a Tunnel Concentrator instance fails, or if the server on which the application is installed goes down.
Redundancy configuration and functionality depend on which management application you use. The subsequent sections describe the redundancy configurations for each deployment type.

Note
As a best practice, install redundant instances on different physical Universal Compute Platform boxes so that a server failure affects only a single instance.