2.10 RADIUS-Diameter Interworking Function

RADIUS-Diameter Interworking (RD-IWF) allows the user to decide for which messages and based on which conditions RD-IWF is activated

If RCL is configured not to detect the retransmissions of the same Request and it forwards all Requests (original and retries) to the DRL where the RD-IWF is invoked, the DER message will be updated with the new End-To-End Identifier. The End-To-End Identifiers are unique within a given period only under a single site. If two DA-MPs from two different sites send DER messages to the same Diameter server then they should be configured to include different Origin-Host AVP values in the Diameter messages because the combination of the Origin-Host AVP value and the End-To-End Identifier is used to detect duplicates. The option Prevent duplicate transactions due to ingress retransmissions on the RADIUS Options tab of the Diameter, and then Configuration, and then Configuration Sets, and then Connection Configuration Sets screen determines how DSR processes duplicate requests received from a client.

RCL should be configured to detect the retransmissions of the same Request and to avoid forwarding the retries to the DRL.

In order to configure RD-IWF, enable the Mediation feature, configure appropriate Mediation components, and copy the RD-IWF perl script to the target directory. For information on Mediation and how to configure it, refer to the Mediation User Guide.