dsTest supports both server emulation and client simulation with the SWx and Wx Diameter applications. Test AAA SWx client interfaces in 3GPP LTE networks and AAA Wx interfaces in 3GPP UMTS networks with our Home Subscriber Server (HSS) Emulator. Use the AAA simulation in the SWx and Wx applications to test the capacity and performance of an HSS. Use the HSS Emulator and applications in tandem to test Diameter Routing Agents (DRA), Proxies, Relay Agents, and Redirect Agents. dsTest provides more tools for EPC compliance testing.
Use the Wx interface application as part of your 3GPP VoWLAN/VoWiFi testing scenarios, testing either the AAA or HSS.
The SWx and Wx interfaces are both stateless. SWx is specified in 3GPP TS 29.273, and Wx is specified in 3GPP TS 29.234.
The stateless SWx Interface application implements the following procedures:
- Registration-Termination-Request/Answer (AAA-initiated and HSS-initiated)
A complete set of events that can be generated with the SWx interface application can be found here.
The stateless Wx Interface application implements the following procedures:
A complete set of events that can be generated with the Wx interface application can be found here.
Our Diameter Dictionary can help design, customize, and interpret your SWx/Wx testing.
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.
The HSS emulator executes procedures based on configurable subscriber profiles, responding to requests and reports from AAA servers and eliminating the need to dedicate a production server to lab activities. You can execute a test event chain with a run-time command or during an automated test to initiate any of the HSS-initiated procedures.
Multiple HSS Emulators can be instantiated on a single server. In this mode each emulator can support multiple interfaces, up to an aggregate of 1000 client connections across all emulators. The emulators are fully independent and their subscriber databases may also be independent, overlap, or be duplicated.
The SWx and Wx Interface applications can be used to simulate AAA functionality to determine the impact of non-3GPP access to the core network before the capability is deployed in a network. The Interface applications allow users to validate HSS performance and capacity in a realistic network environment, replicating the deployment configuration.
Execute timed chains of test events with a run-time command or during an automated test to trigger AAA-initiated procedures.
- Authentication vector requests
- AAA registration
- User profile requests
- AAA de-registration
Multiple AAA nodes can be instantiated on a single server, each with scalable subscriber loads and transaction rates. In this mode, up to 1000 independent nodes may be simultaneously simulated. The nodes are fully independent and their subscriber configurations may also be independent, overlap, or be duplicated.
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 SWx and Wx interfaces:
- 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.