Can an OHS of Oracle Application Server 10g Release 2 (10.1.2) be used to route requests to Oracle Application Server 10g Release 3 (10.1.3) instance?
Yes. You can configure an OHS of Oracle Application Server 10g Release 2 (10.1.2) middle-tier instance to communicate with Oracle Application Server 10g Release 3 (10.1.3) instance. Refer to chapter 6 ‘Reconfiguring Application Server Instances’ of Oracle Application Server Administrator’s Guide 10g Release 3 (10.1.3) for details on how to configure it.