ns-3 Alternatives

GNS3 is a graphical network simulator that allows simulation of complex networks.

Open Source

Download Cisco Packet Tracer, an innovative network simulation and visualization tool used by Cisco Networking Academy students and instructors.

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Paessler Multi Server Simulator is inexpensive and robust software that helps you power massive-scale testing.

Simulation software to model, simulate, predict, and visualize systems in manufacturing, material handling, healthcare, warehousing, mining, etc.

Mininet is a robust and inexpensive Instant Virtual Network designed to function on standard PCs like Laptops and Desktops.

Open Source

NetSim software was created to simulate various Cisco systems. Cisco software is known around the world as being one of the best network, routing and switch systems for businesses and private use. Read more about NetSim.

Verax Systems provides applications covering the entire IT & Telco service lifecycle from definition through provisioning and monitoring up to billing.

VNX is a simple, fast, and highly effective virtualization tool developed to assist you in creating virtual network testbeds automatically, resulting in time-saving.

Cloonix is an open-source virtual network creation framework based on KVM licensed under the AGPLv3 license.

IMUNES is a cost-effective and efficient Integrated Multiprotocol Network Simulator/Emulator that functions as a tool for Linux and FreeBSD.

OPNET is a next-gen and highly resourceful network simulator tool that enables engineers and other professionals to simulate the performance and output of any network type.

Cisco VIRL is a next-gen network virtualization and orchestration platform that enables you to accomplish multiple tasks like creating and customizing simulated networks with third-party and Cisco objects by means of a graphical utility.

The new EVE-NG platform is ready for todays requirements.