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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Information about the call, the identity of the user, and the user’s authentication information are packaged into a Diameter AA-Request AAR message and sent to a server.

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. All RFCs always remain available on-line.

These are session identification, authentication, authorization, tunneling, and accounting. Committed to connecting the world. If cleared, the message is an answer. The authorization AVPs are further broken down by service type.

ITU-T A.5 reference justification

Additionally, the following terms and acronyms are used in this application: In case of redirecting agents, the Hop-by-Hop Identifier is maintained in the header as the Diameter agent responds with an answer message. Any explicit references within that referenced document should also be listed: Network Working Group P. Justification for the specific reference: It is possible for a diameger session to be authorized first and then for an authentication request to follow.

Diameter is an authentication, authorization, and accounting protocol for computer networks. Doameter, application specific state machines can be introduced either later or at a higher abstraction layer.


You can help by adding to it. The RFC defines an authorization and an accounting state machine. VPN Virtual Rcc Network – In this document, this term is used to describe access services that use tunneling methods. This is part of the basic protocol functionality and all stacks should support it and as such abstract from the connectivity related operations.

It is set when resending requests not yet acknowledged as an indication of a possible duplicate due to a link failure. The failure of a reauthentication exchange will terminate the service. Obsolete RFCs are indicated with strikethrough text. Other useful information describing the “Quality” of the document:. As ofthe only value supported is 1. The RFC tfc a core state machine for maintaining connections between peers and processing messages. This allows a single server to handle policies for many services.

Other for any supplementary information: Views Read Edit View diwmeter. The Diameter protocol was initially developed by Pat R. This capability goes beyond the Call Check capabilities described in section 5.

RFC – Diameter Network Access Server Application

The degree of stability or maturity of the document: Initial deployments of the Diameter protocol are expected to include legacy systems. Note that the return of an unsupportable Accounting-Realtime-Required value [ BASE ] would result in a failure to establish the session. The values are for permanent, standard commands allocated by IANA. Messages with the “E” bit set are commonly referred to as error messages.

A Command Code is used to determine the action that is to be taken for a particular message.

The packet consists of a Diameter header and a variable number of Attribute-Value Pairs, or AVPs, for encapsulating information relevant to the Diameter message.


Relationship with other existing or emerging documents: The application can be an authentication application, an accounting application, or a vendor-specific application. Rfv common Diameter commands defined in the protocol base and applications are:.

Diameter (protocol)

This is achieved by including the RADIUS attribute space to eliminate the need to perform many attribute translations. Call and Session Information. Table of Contents 1.

Comments on RFCs and corresponding changes are accommodated through the existing standardization process. When combined with the Diameter Base protocol, Transport Profile, and Extensible Authentication Protocol specifications, this application specification satisfies typical network access services requirements. After that the transport connection can be disconnected. Feedback Contact Us Accessibility.

Diameter Network Access Server Application. This field indicates the version of the Diameter Base Protocol. Diameter is used for many different interfaces defined by the 3GPP standards, with each interface typically defining new commands and attributes.

Standards Track Cisco Systems Inc. When creating a request, the End-to-End Identifier is set to a locally unique value. Internet Standards Application layer protocols Computer access ffc protocols Authentication protocols.

Diameter Applications can extend the base protocol by adding new commands, attributes, or both. Clear description of the referenced document: Transaction state implies that upon forwarding a request, its Hop-by-Hop Identifier is saved; the field is replaced with a locally unique identifier, which is restored to its original value when the corresponding answer is received.

Adding a new optional AVP does not require a new application.