You can configure a non-clustered Managed Server instance to run as a proxy server that hosts a servlet that directs the requests to the clustered Managed Server instances. In this configuration, you can define a failover configuration to make the WebLogic proxy server highly-available. When you define this configuration, ensure that you specify a resource dependency from the WebLogic Server proxy server to the Managed Server resource. Setting this dependency ensures that the proxy server resource will not try to come online unless the Managed Server resource is online.