Network Working Group H. Hakala Request for Comments: L. Mattila Category: Standards Track Ericsson J-P. Koskinen M. Stura J. Loughney Nokia. For more information, see the Diameter Credit-Control Application protocol specification detail: Opens a new window. RFC Diameter Credit-Control Application August 5. Click here to download RFC TXT format PDF format coming soon. DCCA and Gy.

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It is located in dxca home domain and is accessed by service elements or Diameter AAA servers in. Views Read Edit View history. These operations are accomplished with the one- time event. Retrieved from ” https: In both models, the credit- control client requests credit authorization from the credit-control server prior to allowing any service to be delivered to the end user.

Diameter (protocol)

It may also interact with business support systems. The Hop-by-Hop Identifier is an unsigned bit integer field in network byte order that is used to match the requests with their answers as the same value in the request is used in the response.

The intermediate interrogations may be needed to request new quota while the service is being rendered. Retrieved 30 April The Command Codes are as follows: Accounting protocols such as RADIUS accounting and the Diameter base accounting protocol can be used to provide accounting data to the accounting server after service is initiated, and to provide possible interim reports until service completion.

If an AVP with the ” M ” bit set is received by a Diameter client, server, proxy, or translation agent and either the AVP or its value is unrecognized, the message must be rejected. The ” R ” Request bit — If set, the message is a request.


The credit-control application defined in this specification supports two different credit authorization models: Diameter credit- control server. Application-ID is used to identify for which Diameter application the message is applicable.

Distribution of this memo is unlimited. The server grants units and charges the user. The credit- control protocol is the Diameter base protocol with the Diameter credit-control application. This process is accomplished with session based ecca that includes the first interrogation, possible intermediate interrogations, and the final interrogation.

Pages using RFC magic links. Rating The act of determining the cost of scca service event.

Diameter Credit-Control Application Protocol

In order to support real-time credit-control, a new type of server is needed in the AAA infrastructure: Finally, the subscriber has ended the session, and the client sends a termination message to the server containing the 44006 Used-Units. Adding a new optional AVP does not require a new application. During interrogation money is reserved from the user account. These formats are observed in Credit-Control messages.

A mechanism has to be provided to allow the user to be informed of the charges to be levied for a requested service. However, private services may be deployed that are subject to agreements between providers of the credit-control server and client.

When real-time credit-control is required, the credit-control client contacts the credit-control server with information about a possible service event. The credit-control application also supports operations such as service price enquiry, user’s balance check, and refund of credit on the user’s account.


Diameter Credit-Control Application

Consequently, this needs to be considered when credit resources are granted to the services. Therefore, it is assumed that a Diameter credit-control server will provide service only for Diameter credit-control clients that have agreed beforehand as to the content of credit-control messages.

The specification of another cooperative standardization body e. Direct Connection with Redirects Table of Contents 1. The credit-control process is performed to determine potential charges and to verify whether the end user’s account balance is sufficient to cover the cost of the service being rendered. Service Event An event dfca to a service provided to the end user.

Diameter (protocol) – Wikipedia

The credit-control server and AAA server in this architecture model are logical entities. If Diameter credit-control proxies exist between the credit-control client and the credit-control server, they MUST advertise the Diameter credit-control application support.

Service-Specific Rating Input and Interoperability The Diameter credit-control application defines the framework for credit-control; it provides generic credit-control mechanisms supporting multiple service applications. The ” E ” Error bit — If set, the message contains a protocol error, and the message will not conform to the CCF described for this command. It provides a general solution to real-time cost and credit-control.