Figure 5-1. Layers Used in a Client/Server Application Connection

This illustration depicts the various layers of stack communication used in a client/server application connection. On the client side, from the top down, the stack includes the following layers:

On the server side, from the top down, the stack includes the following layers:

The Oracle Net Foundation Layer and Oracle Protocol Support make up Oracle Net. On the client side, Oracle Net Foundation Layer is associated with naming methods. On both the client and server sides, Oracle Net Foundation Layer is associated with security services.