Phone: (469) 634-4200

dsTest, Developing Solutions, HSS Testing, CIoT Testing, MTC-AAA, MTC-IWF

dsTest supports both server emulation and client interface simulator capabilities for the 3GPP LTE S6m/S6n Diameter interface.  Use the S6m/S6n Interface application on our simulated Machine Type Communications Interworking Function (MTC_IWF) or MTC-AAA to test the capacity and performance of a Home Subscriber Server (HSS).  Use our HSS simulator node with the S6m/S6n interface application to test your MTC-AAA or MTC-IWF/CIoT Device Management Gateway.  Customize S6m/S6n messages using our SmartAVP feature.  If you are testing CIoT/NB-IoT, dsTest can surround a device management gateway with all the interfaces needed to verify the SCEF, MTC-IWF and SCS functions required of the Device Management Gateway.   The S6m/S6n reference point is stateless, and is specified in 3GPP TS 29.336.

Comprehensive sets of Operational Measurements for the S6m/S6n application, Diameter, and socket level are collected at user-specified intervals and stored in a SQLite database on the dsTest server.  Real-time measurements may be retrieved through our dsClient CLI interface or graphed via our dsClient GUI interface.


The S6m/S6n application implements the following 3GPP procedures:

  • Subscriber Information Request/Answer

The S6m/S6n Diameter application application ID is 16777310, and the vendor identifier is 10415 (3GPP).

A complete set of events that can be generated with the S6m/S6n interface can be found here.

MTC-AAA/MTC-IWF Testing (Server Emulation)

Our HSS  server emulator supplies an appropriate response  when applicable, eliminating the need to dedicate a production server to lab activities.  The S6m/S6n application allows users to validate MTC-IWF/MTC-AAA functionality, performance and capacity in a realistic network environment, replicating a deployment configuration.

HSS Testing (Client Simulation)

The S6m/S6n application simulates a MTC-IWF/MTC-AAA S6m/S6n interface to your HSS to determine the functionality, processing capacity and performance of the HSS.   Execute timed chains of test events with a run-time command or during an automated test using our SmartEvents feature to trigger MTC-IWF/MTC-AAA-initiated procedures.

Multiple nodes can be instantiated on a single server, each with scalable subscriber loads and transaction rates. In this mode the S6m/S6n interfaces of up to 1000 independent client nodes may be simultaneously simulated.  The nodes are fully independent and their subscriber configurations may also be independent, overlap, or be duplicated.

Supporting Standards