Diameter Gy – Re-Auth-Request (RAR) command

Diameter Gy – RAR message format

This section describes the Diameter Gy RAR message format as defined in RFC 6733. Strikethrough formatted AVPs should not appear or are ignored in RAR.

A RAR message triggers an intermediate interrogation (CCR-U) with Reporting-Reason set to ‟Forced Reauthorization”.

 <RAR>  ::= < Diameter Header: 258, REQ, PXY > 
                    < Session-Id > 
                    { Origin-Host } 
                    { Origin-Realm } 
                    { Destination-Realm } 
                    { Destination-Host } 
                    { Auth-Application-Id } 
                    { Re-Auth-Request-Type }  
                    [ User-Name ]
[ Origin-State-Id ]
                  * [ Proxy-Info ]
                  * [ Route-Record ]
                  * [ AVP ]

Diameter Gy – RAR message top level AVPs

Diameter Gy RAR: top level AVP description provides a detailed description for each top level AVP present in a Diameter Gy RAR message.

Table 1. Diameter Gy RAR: top level AVP description
AVP code	AVP name	Description
258	Auth-Application-Id	Fixed value: 4 = Diameter Credit Control Application
263	Session-id	A session is a logical concept at the application layer that exists between the Diameter client and the Diameter server; it is identified via the Session-Id AVP. Format: <DiameterIdentity>;<high 32 bits>;<low 32 bits> <DiameterIdentity> is the configured origin host <high 32 bits> are encoded as the Diameter initialization time (the number of seconds since 1 January, 1970) <low 32 bits> are encoded as a sequentially increasing number starting at 1 Example: bng.nokia.com;1326398325;1
264	Origin-Host	Diameter Identity. Used as destination host in the next Diameter message. Example: server.nokia.com
283	Destination-Realm	Diameter Identity. Example: nokia.com
285	Re-Auth-Request-Type	Values: 0 = Authorize-Only
293	Destination-Host	Diameter Identity. Example: bng.nokia.com
296	Origin-Realm	Diameter Identity. Used as destination realm in the next Diameter message. Example: nokia.com

Table 2. Diameter Gy RAR: top level AVP format
AVP code	AVP name	Standard	Data format	Flags
258	Auth-Application-Id	RFC 6733/RFC 4006	Unsigned 32	M
263	Session-id	RFC 6733	UTF8 String	M
264	Origin-Host	RFC 6733	Diameter Identity	M
283	Destination-Realm	RFC 6733	Diameter Identity	M
285	Re-Auth-Request-Type	RFC 6733	Enumerated	M
293	Destination-Host	RFC 6733	Diameter Identity	M
296	Origin-Realm	RFC 6733	Diameter Identity	M