Diameter Load Tester

Diameter interface test solution
Diameter Load Tester

Diameter interface test solution


Diameter is an authentication, authorization, and accounting protocol used pervasively in telelcom networks, the Valid8 Diameter Load Tester provides load testing capabilities across numerous Diameter interfaces in fixed and mobile networks such as Cx, Dx, Gx, S6x

What It Can Do For You

It can load test single or mulitple Dimater interfaces up to thousands of transactions per second, with customization message flows and content

Why It’s Different

  • Scalable software-based architecture can run on a range of hardware from COTS and high-end customer provided hardware to Virtual Machines and the Cloud (e.g. Amazon AWS) for maximum versatility and performance
  • Web-based UI is easy to learn
  • HTTP API enable integration with automation test systems and other equipment
  • Stateful modeling provides accurate emulation of network elements


  • Measure Key Performance Indicators (KPIs) such as number of simultaneous sessions and Busy Hour Call Attempts (BHCA)
  • Check transaction content correctness
  • Check load capabilities
  • Generate valid and invalid/negative messages and call-scenarios
  • Supports sending invalid responses including malformed, dropped and misordered packets
  • Security testing


  • Authentication Information requests/answers
  • Update Location requests/answers
  • Notify requests/answers
  • Purge requests/answers
  • Reset requests/answers
  • Insert Subscriber Info requests/answers

Configurable Parameters
  • ‍Call session length
  • Concurrent calls/endpoints

Automation API

User commands can be fully automated using the HTTP API. This includes performing all test control functions as well as collecting results and metrics.


The application’s subsystems can be edited directly in the browser using TDL or by using the graphical tools. The Message Workshop allows for creating of test scenarios directly from the hex stream of a remote capture, while the Graphical Editor (on the feature roadmap for 2019) will allow for creating customized call scenarios by dragging and dropping the call flow to meet your test needs.

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Use Cases

HSS Under Test

For testing the HSS Server, the Valid8 Tester can generate S6a traffic to test performance and stability.

Supported Scenarios:
  • AIR/A
  • ULR/A
  • CLR/A
  • NOR/A
  • PUR/A
  • RSR/A
  • ISR/A

PCRF Under Test

For testing the PCRF, the 4G Network Emulator can wrap around the PCRF with the core network and IMS.

Supported Scenarios:
  • ‍CC-Request / Answer (CCR / CCA)
  • 4 Re-Auth-Request / Answer (RAR / RAA)
  • 4 Capability-Exchange-Request / Answer (CER / CEA)
  • 4 Session-Termination-Request / Answer (STR / STA)
  • 4 Abort-Termination-Request / Answer (ASR / ASA)
  • 4 Device-Watchdog-Request / Answer (DWR / DWA)
  • 4 Disconnect-Peer-Request / Answer (DPR / DPA)
  • ‍Emulates core network, Diameter, and IMS nodes as needed for testing the PCRF, exposing all internal interfaces
  • Conformance tests available for each interface (S7, S9, Rx, Gx)
Diameter Load Tester
Diameter Load Tester

Summary of Specifications


Product Details

All Solutions

Valid8 exports its products strictly in accordance with all US Export Control laws and regulations which shall apply to any purchase or order. Specifications are subject to change without notice.

500 West Cummings Park, Suite 6550 Woburn, MA 01801
p: +1-855-482-5438
f: +1-781-996-3708

Ordering Information

Datasheet Page

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