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dsTest, Developing Solutions, Gc Interface Aplication, HLR Testing, GGSN Testing

dsTest supports both server emulation and client simulation capabilities for the Mobile Application Part (MAP) Gc Interface.  Test GPRS Gateway Support Node (GGSN) Gc interfaces in UMTS networks with our Home Location Register (HLR) Emulator.  Use the Gc Interface application on our GGSN node to test the capacity and performance of an HLR.  Validate network node performance and capacity in a realistic network environment, replicating the deployment configuration.  For more information regarding how to use dsTest for MAP functional and compliance testing, see our page on Conformance Testing.  MAP is specified in 3GPP TS 29.002.

Rich sets of Mobile Application Part (MAP) and Transaction Capabilities Application Part (TCAP) operational measurements are collected at 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.

Implementation

The Gc Interface application implements the following 3GPP Mobile Application services:

  • Retrieval of routing information for GPRS
  • Reporting failure to establish a network-requested PDP context
  • Reporting that an MS has become reachable for GPRS

A complete set of events that can be generated with the Gc interface can be found here.

GGSN Testing (Server Emulation)

The HLR Emulator initiates the appropriate procedure when indicated, eliminating the need to dedicate a production server to lab dsTest, Developing Solutions, Gc Interface Application, GGSN Testing, HLR Emulationactivities. The HLR Emulator provides Mobile Subscriber data repository and routing information services for the Gc interface—all of the functionality required by a GGSN plus all of the benefits of an emulator.

You can manually trigger procedures, such as reporting that an MS has become reachable for GPRS, by executing a test event chain with a run-time command or during an automated test.

You can also use the control interface to change the emulator’s behavior.  Simulate a non-responsive server by pausing the emulator or simulate intermittent issues by pausing and resuming.  Disable individual subscribers during the test run, generating unknown subscriber errors.

Add functionality to your HLR Emulator by adding interfaces. Using concurrent interfaces also enables interaction between the interfaces.

Multiple HLR 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 HLR Emulator.

HLR Testing (Client Simulation)

The Gc Interface application can be used to simulate a GGSN’s Gc interface to determine the impact of new HLR features and standards dsTest, Developing Solutions, Gc Interface Applicaton, HLR Testing, GGSN Simulationbefore they are deployed in a network. The Gc Interface application allows you to validate HLR 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 GGSN-initiated procedures.

  • Request routing information for specified subscribers
  • Report PDP context activation failures for specified subscribers

Multiple GGSN nodes can be instantiated on a single server, each with scalable subscriber loads and transaction rates. In this mode, up to 1000 independent GGSN 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.

Supporting Standards

  • MAP – 3GPP TS 29.002
  • TCAP – ITU-T Q.773
  • SCCP – ITU-T Q.711-714
  • M3UA – RFC 4666
  • SCTP – RFC 4960
  • Specification Map

General Reference Guides

Read more about dsTest.