Architecture

Diameter common stack, which is the Diameter endpoint, is an interface between the NFs and both client and server modes for a supported application.

The following diagram shows the architecture of the common Diameter stack.

Common Diameter stack

The common Diameter stack includes the following components:

  • Network Functions—Policy and Charging Rules Function (PCRF) and Online Charging System (OCS)

  • Diameter Endpoint

  • Diameter interfaces on SMF—Gx and Gy clients

For more information on the supported Diameter interfaces and their related features, see the Interfaces Support chapter.