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SWx/Wx Interface

dsTest, Developing Solutions, SWx Interface, Wx Interface, AAA Testing, HSS Testing, VoWiFi Testing, VoWLAN Testing

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 Interface applications to test the capacity and performance of an HSS.  Use the HSS Emulator and Interface applications in tandem to test Diameter Routing Agents (DRA), Proxies, Relay Agents, and Redirect Agents.  dsTest provides more tools for EPC compliance testing.  The SWx interface is stateless, and is specified in 3GPP TS 29.273.  Wx interface is  stateless, and is specified in 3GPP TS 29.234.

Use the Wx interface application as part of your 3GPP VoWLAN/VoWiFi testing scenarios, testing either the AAA or HSS.

Comprehensive sets of operational measurements for the SWx/Wx Interface, Diameter, and socket level are collected at configurable intervals and stored in a SQLite database on the dsTest server.  Real-time measurements may be retrieved through our dsClient CLI or graphed via our dsClient GUI.

Implementation

The stateless SWx Interface application implements the following procedures:

  • Server-Assignment-Request/Answer
  • Multimedia-Authentication-Request/Answer
  • Registration-Termination-Request/Answer (AAA-initiated and HSS-initiated)
  • Push-Profile-Request/Answer

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:

  • Server-Assignment-Request/Answer
  • Multimedia-Authentication-Request/Answer
  • Registration-Termination-Request/Answer
  • Push-Profile-Request/Answer

A complete set of events that can be generated with the Wx interface application can be found here, and our Diameter Dictionary can help design, customize, and interpret your SWx/Wx testing.

AAA Testing (Server Emulation)dsTest, Developing Solutions, SWx Emulation, Wx Emulation, AAA Testing

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.

Read more about our HSS Emulator.

HSS Testing (Client Simulation)dsTest, Developing Solutions, SWx Interface, Wx Interface, AAA Emulation, HSS Testing

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.

Read more about our Capacity and Performance.

Advanced Testing Features

Enhance your testing with Developing Solutions advanced testing features:

  • Define a set of message templates against which all messages will be validated with our  Diameter Dictionary.  Every Diameter message is validated, even under load conditions.
  • Insert, delete, or replace AVPs in your messages with our SmartAVP solution.  SmartAVP enables you to define proprietary signaling or to corrupt AVPs to facilitate negative testing.
  • Configure commands to define the series of actions and rates that each subscriber takes.  Advanced profiles can be created using SmartEvents to define a mix of traffic based on probability assignments.  With SmartEvents, you can specify when your SmartAVPs are used.

Read more about our SmartEvents feature.
Read more about our Advanced Diameter Testing Features.3GPP SWx Diameter Interface

Supporting Standards

  • SWx – 3GPP TS 23.402 and TS 29.273
  • Wx – 3GPP TS 23.234 and TS 29.234
  • Diameter – RFC 6733, RFC 3588 and RFC5516
  • SCTP – RFC 4960
  • TCP – RFC 7933GPP Wx Diameter Interface
  • dsTest Specification Map

 

 

 

General Reference Guides

Read more about dsTest.