Diameter is an authentication, authorization, and accounting protocol for computer networks. The Diameter base protocol is defined by RFC ( Obsoletes: RFC ) and .. RFC , Diameter Network Access Server Application. RFC (part 1 of 4): Diameter Network Access Server Application. Diameter Network Access Server Application (NASREQ, RFC ). • Diameter Base Accounting (RFC ). • Diameter Extensible Authentication Protocol.

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A request for authorization will include some AVPs defined in section 6. The End-to-End Identifier is an unsigned bit integer field in network byte order that is used to detect duplicate messages along with the combination of the Origin-Host AVP.

Note that the return of an unsupportable Accounting-Realtime-Required value [ BASE ] would result in a failure to establish the session. Calhoun Request for Comments: As ofthe only value supported is 1. It belongs to the application layer protocols in the internet protocol suite. The name is a play on words, derived from the RADIUS protocol, which is the predecessor a diameter is twice the radius. Diameter Session Reauthentication or Reauthorization. Network Working Group P. Internet Standards Application layer protocols Computer access control protocols Authentication protocols.

Comments on RFCs and corresponding changes are accommodated through the existing standardization process. Clear description of the referenced document:.

ITU-T work programme

Table of Contents 1. Received answers that do not match a known Hop-by-Hop Identifier are ignored by the Diameter agent. Relationship with other existing or emerging documents: Retrieved from ” https: When set the AVP Code belongs to the specific vendor code address space. Call and Session Information. 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.


All RFCs always remain available on-line. Current information, if any, about IPR issues: Diameter Session Termination When a NAS receives an indication that a user’s session is being disconnected rc the client e.

The service may be a diameetr connection or a value-added service such as terminal emulation [ NASModel ]. 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.

Retrieved 30 April From Wikipedia, the free encyclopedia. Other useful information describing the “Quality” of the document: References within the referenced RFCs are listed under item 8. The following sections list the AVPs used in these messages, grouped by common usage. Depending on the Auth-Request-Type AVP, the Diameter protocol allows authorization-only requests that contain no authentication information from the client.

For example, for eiameter services, the Diameter server that originally authorized a session may need some confirmation that the user is still using the services. This is part of the basic protocol functionality and all stacks should support it and as such abstract from the connectivity related operations. This section needs expansion. Clear description of the referenced document: The application can be an authentication application, an accounting application, or a vendor-specific application.


ITU-T A.5 reference justification

The Command Codes are as follows: Some diamteer Diameter commands defined in the protocol base and applications are:. Diameter Applications can extend the base protocol by adding new commands, attributes, or both.

This field indicates the version of the Diameter Base Protocol. The ” R ” Request bit — If set, the message is a request. Other for any supplementary information:.

These are session identification, authentication, authorization, tunneling, and accounting. After that the transport connection can be disconnected.

Diameter (protocol)

Initial deployments of the Diameter protocol are expected to include legacy systems. The authorization AVPs are further broken down by service type. This is achieved by including the RADIUS attribute space to eliminate the need to perform many attribute translations.

Archived from the original on 4 July The server will respond with an AAA message to specify the new service parameters. This page was last edited on 19 Octoberat