| Diameter |
Articles about Diameter |
Information AboutDiameter |
| CATEGORIES ABOUT DIAMETER | |
| authentication methods | |
| internet protocols | |
| internet standards | |
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DIAMETER is a computer networking protocol for AAA (Authentication, Authorization and Accounting). It is a successor to RADIUS . UPGRADE FROM RADIUS The name is a pun on the RADIUS protocol, which is the predecessor (a diameter is twice the radius). Diameter is not directly Backwards Compatible , but provides an upgrade path for RADIUS. The main differences are :
PROTOCOL DESCRIPTION The Diameter Base Protocol is defined by RFC 3588, and defines the minimum requirements for an AAA protocol. ''Diameter Applications'' can extend the base protocol, by adding new commands and/or attributes. An application is not a program, but a protocol based on Diameter. Diameter security is provided by IPSEC or TLS , both well-regarded protocols. Packet format Commands Each command is assigned a command code, which is used for both requests and answers. Attribute-Value Pairs (AVP) State machines Message flows APPLICATIONS A ''Diameter Application'' is not a Software Application , but a protocol based on the DIAMETER Base protocol (defined in RFC 3588). Each application is defined by an application identifier and can add new command codes and/or new mandatory AVPs. Adding a new optional AVP does not require a new application. Examples of Diameter applications :
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