dsTest supports both server emulation and client interface simulator capabilities for the 3GPP LTE T4 Diameter interface. Use our T4 Interface application on our Machine Type Communication Interworking Function (MTC-IWF) node simulator to test the capacity and performance of a SMS Service Center (SMS-SC). Use our GMSC/SMS-SC Emulator with the T4 interface application to test MTC-IWF network nodes. Customize T4 messages using our SmartAVP feature. If you are testing CIoT/NB-IoT, dsTest can surround a CIoT Serving Gateway Node (C-SGN) with all the interfaces needed to verify the functions required of the C-SGN. T4 is stateless, and is specified in 3GPP TS 29.337.
Comprehensive sets of Operational Measurements for the T4 Interface, 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 T4 Inteface Application implements the following 3GPP procedures:
The T4 Diameter application application ID is 16777311, and the vendor identifier is 10415 (3GPP).
MTC-IWF Testing (Server Emulation)
The GMSC/SMS-SC server emulator initiates the appropriate procedure when appropriate, eliminating the need to dedicate a production server to lab activities. You can manually trigger server-initiated procedures such as Alert Service Center by executing a event chain with a run-time command or during an automated test.
GMSC Testing (Client Simulation)
Our T4 Interface application simulates a MTC-IWF interface to determine the processing capacity and performance of a GMSC. The T4 interface application allows users to validate GMSC 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 using our SmartEvents feature to trigger SMS-SC-initiated procedures.
Multiple GMSC/SMS-SC and MTC-IWF nodes can be instantiated on a single dsTest server or VM, each with scalable subscriber loads and transaction rates. In this mode the T4 interfaces of up to 1000 independent MTC-IWF nodes may be simultaneously simulated. The nodes are fully independent and their subscriber configurations may also be independent, overlap, or be duplicated.