dsTest supports AAA server emulation and client interface simulation capabilities for the 3GPP Diameter STa interface. This solution is ideal for customers testing an Access Network Gateway (AGW) or AAA server. Test AAA and AGW STa interfaces with our Home Subscriber Server (HSS) Emulator. Use the AAA simulation in the STa interface application to test the capacity and performance of an HSS. The STa interface is stateful, and is specified in 3GPP TS 29.273.
In your evolved High Rate Packet Data (eHRPD) network, use the STa application to test the interaction between the HRPD Serving Gateway (HSGW) and the 3GPP2 AAA Proxy. The STa application is equivalent to the Pi* interface between those nodes when the optional Pi*3GPP2 Diameter application is not supported.
Extensible Authorization Protocol (EAP)
The STa reference point performs authentication based on reuse of the DER/DEA command set defined in Diameter Extensible Authentication Protocol (EAP).
The STa Interface application provides the following procedures:
- Authentication and Authorization
- Re-Authentication and Re-Authorization
- Access Network Initiated Session Termination
- HSS/AAA Initiated Detach
A complete set of events that can be generated with the STa interface application can be found here.
As with all dsTest products, the node configurations and test scenarios are easily defined and configured with XML files that are validated against a published XML Schema to avoid invalid definitions. With our dsClient GUI, you can create, run, and archive tests, capture, graph and archive operational measurements, capture real-time data flows, and manage your dsTest servers and testing scenarios with a standalone application that runs on your PC.
AAA Testing (Client Simulation)
When testing a AAA server, the STa Interface application can be used on the AGW to test the responses of the AAA to messages from the AGW. When used together with our SWx Interface application on an HSS client node you can provide a more complete AAA functional and load test solution.
AGW Testing (Server Emulation)
When used in conjunction with our Policy and Charging Rules Function (PCRF) emulator, Online Charging System (OCS) emulator, and Offline Charging System (OFCS) emulator, dsTest can offer all of the services needed to test a PGW.
Advanced Testing Features
SmartEvents — Alter application behavior or coordinate multiple interface applications with SmartEvents. Our programmable, subscriber-level state machine gives you the ability to define handlers for specified application events that can then cause an event in another application to be executed. You can also configure handlers to modify subscriber information during run-time, introduce timers, or randomize subscriber behavior based on configurable probabilities to name a few of the many options in one of dsTest’s most powerful features.
SmartMessageElement — Insert, delete, or replace elements in Diameter, RADIUS, MAP, LDAP, GTP, REST, or SOAP messages with our SmartMessageElement solution. Define proprietary signaling or corrupt elements to facilitate negative testing. You can specify when your elements are used with SmartEvents.
Traffic Profile — Draw the shape of your test actions across time with Traffic Profile. You can define the rate for any action as a static rate or reference a Traffic Profile configuration, which also means that multiple Traffic Profiles can be running currently. Use Traffic Profile in conjunction with the randomizing features in SmartEvents to design a test that more truly simulates real-world network activity.
Diameter Dictionary — Define a set of message templates against which all messages will be validated with our Diameter Dictionary. Whether you’re load testing or testing functionality all messages are validated.
dsTest provides rich sets of measurements for the STa interface:
- Transaction and transport layer attempts, successes, and failures
- Transaction duration, transactions-per-second, and round-trip delay
- Message and byte counters
- Errors encountered and error indications received in messages
You can read more about the reporting features offered with dsTest and dsClient here.