Diameter

Read this article about the history of Diameter and why it was developed. What preceded Diameter as an authentication protocol? While you do not need to understand how Diameter authenticates, you should have a general idea of its authentication process.

7.Result

7.2.Startconnection API SUCCESS

StartConnection API is called resulting in SUCCESS, whose pre-requisite is Initialization API which is SUCCESS; later UnInitialization is called which is SUCCESS.

Figure 6: StartConnection API SUCCESS