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dsTest, Developing Solutions, S13 Interface, S13' Interface, MME Testing, SGSN Testing

With the dsTest 3GPP S13 Interface Application, LTE network equipment manufacturers and service providers will be able to reduce time to market of new services while ensuring that quality and performance requirements are not compromised. With this interface application from Developing Solutions, you can:

  •  Validate network node performance and capacity in a realistic network environment, replicating the deployment configuration;
  • Use the S13 Interface application to test the capacity and performance of an EIR;

Easily configurable subscriber databases, containing millions of subscribers, enables you to test with a realistic mix of subscriber profiles.  Read more about dsTest Capacity and PerformancedsTest also provides more tools for EPC compliance testing.


The S13 Interface application supports the Mobile Equipment Identity (MEI) Check procedure. A complete set of events that can be generated with the S13 interface application can be found here, and our Diameter Dictionary can be used to construct, test, validate, and interpret the results of your Diameter testing.

EIR/HSS Testing (Client Simulation)dstest, Developing Solutions, S13 Interface, EIR Testing, S13' Interface

The S13 Interface application simulates an MME’s S13 interface or an SGSN’s S13’ interface to test an EIR’s capacity and performance and helps to determine the impact of new EIR features and standards before they are deployed in a network.

Multiple SGSN and MME nodes can be instantiated on a single dsTest server, each with scalable subscriber loads and transaction rates. In this mode the S13 interfaces of up to 1000 independent MME and SGSN nodes may be simultaneously running. The nodes are fully independent and their subscriber configurations may be independent, may overlap, or may be duplicated.

MME/SGSN Testing (Server Emulation)

dsTest, Developing Solutions, EIR Emulation, S13 Interface, S13' Interface, SGSN Testing, MME TestingInclude S13 interface functionality in your lab without dedicating a production EIR server. The S13 Interface application can provide EIR simulation and, along with the HSS Emulator, provide MEI data repository service for the S13 and S13’ interfaces—all of the functionality required by an MME or an SGSN plus the benefits of lower cost and ease of configuration.

You can reconfigure your subscriber database in seconds rather than hours by simply loading a new configuration file. The subscriber database can be configured with a mix of valid and invalid MEIs and various status codes, causing the return of unknown equipment responses, white-listed, or black-listed status codes for subscribers.

An EIR simulator with the S13 interface can support up to 1024 simultaneous connections with a mix of MMEs and SGSNs. Multiple EIR simulators can run simultaneously, each with an independent subscriber database.

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.

Operational Measurements

dsTest provides rich sets of measurements for the S13/S13′ 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

See our Online Help for S13 measurements, Diameter measurements, and socket measurements.

You can read more about the reporting features offered with dsTest and dsClient here.

 Supporting Standards