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NetSim by Tetcos

NetSim by Tetcos is a packet-level, discrete-event simulator and emulator for wired and wireless communication networks.

Place
#15 of 31
Score
6.1
NetSim by Tetcos's website

What NetSim by Tetcos is

NetSim by Tetcos is a packet-level, discrete-event simulator and emulator for wired and wireless communication networks. Its 5G and 6G modeling covers end-to-end networks with gNB, UE, 5G Core, MIMO, beamforming, network slicing, and configurable propagation. Users can modify C source code supplied for every layer of the 5G stack to build custom protocols, and an external Python interface supports automation, AI/ML workflows, and runtime control. Standard and Pro editions interface with Python, MATLAB, SUMO, and Wireshark. The Emulator connects simulations to real hardware and live applications, with traffic subject to configured delay, loss, and error conditions. NetSim Cyber adds network and attack emulation for power-system cyber-physical testbeds and interfaces with listed power-system platforms. NetSim runs on Windows; emulator setup calls for a dedicated Windows 10 or 11 system. Lite is free for individual use. Other listed edition prices are on request, and Tetcos offers technical support by ticket, email, and phone, stating that replies arrive within 24 hours.

Good

  • Models end-to-end 5G and 6G networks
  • Modifiable C source for the 5G stack
  • Python interface supports automation and AI/ML workflows
  • Emulator connects simulations to real hardware
  • Lite is free for individual use

Watch out

  • Windows platform only
  • Emulator setup calls for dedicated Windows 10 or 11 system
  • Prices for Academic, Standard, and Pro are on request

Who it suits

NetSim may suit universities, defence labs, telecom operators, and research groups working on network simulation or emulation. Its Cyber edition is aimed at power-system cyber-physical testbeds.

Verdict

NetSim combines network simulation with hardware emulation and protocol customization. Confirm that the Windows requirement and edition-specific capabilities fit your intended setup.

Plans and prices

From NetSim by Tetcos's own pricing page, checked 1 Oct 2026.

All about pricing
PlanPriceWhat it gives you
NetSim LiteFreeFree for individual use · free
NetSim AcademicPriced on request100 nodes · 35+ inbuilt lab experiments · academic pricing
NetSim ProPriced on request5000 nodes · all technology libraries · priority support · Cyber and Astra add-ons
NetSim StandardPriced on request500 nodes · protocol source C code · Python, MATLAB, SUMO, Wireshark interfaces · emulator

The facts

Each one read from NetSim by Tetcos's own pages, with the date it was checked.

What it does

5G and 6G
NetSim models end-to-end 5G/6G networks with gNB, UE, 5G Core, MIMO, beamforming, network slicing, and configurable propagation.checked 1 Oct 2026
Academic capabilities
NetSim Academic includes an easy-to-use GUI, packet animation, dynamic plots, a results dashboard, and 35+ inbuilt labs.checked 1 Oct 2026
Core purpose
NetSim is a packet-level, discrete-event network simulator and emulator for wired and wireless communication networks.checked 1 Oct 2026
Cybersecurity
NetSim Cyber provides a network and attack-emulation layer for power-system cyber-physical testbeds.checked 1 Oct 2026
Hardware emulation
The NetSim Emulator connects simulations to real hardware and live applications, with traffic passing through configured delay, loss, and error conditions.checked 1 Oct 2026
Integrations
NetSim Standard and Pro interface with Python, MATLAB, SUMO, and Wireshark.checked 1 Oct 2026
License security
Cloud licensing exchanges only license-handshake data, while simulation data and user files remain local.checked 1 Oct 2026
On-premises licensing
On-premises floating licensing keeps communication within the customer network and can operate without internet after initial setup.checked 1 Oct 2026
Power-system integrations
NetSim Cyber directly interfaces with OPAL-RT, RTDS, HYPERSIM, PSCAD, MATLAB/Simulink, Typhoon HIL, OpenPMU, and openPDC.checked 1 Oct 2026
Protocol source
Every layer of the 5G stack ships with C source code that users can modify to build custom protocols.checked 1 Oct 2026
Python interface
An external Python interface supports automation, AI/ML workflows, and run-time control.checked 1 Oct 2026
Support
Tetcos offers technical support through tickets, email, and phone, and states that replies arrive within 24 hours.checked 1 Oct 2026
Target users
Tetcos lists universities, defence labs, telecom operators, and research groups as NetSim users.checked 1 Oct 2026

The company

Headquarters
Bangalore, Indiachecked 28 Sep 2026

Where it runs

Windows requirement
The emulator setup specifies a dedicated system running NetSim on Windows 10 or 11.checked 1 Oct 2026

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