Open Source Emulators

Build, Design and Test your network in a risk-free virtual environment and access the largest networking community to help. Whether you are studying for your first networking exam or building out a state-wide telecommunications network, GNS3 offers an easy way to design and build networks of any size without the need for hardware.

NET-Simulator was created to help lecturers and students in the study of computer networks. Students can build virtural networks in the virtual environment provided by NET-Simulator. These devices are controlled by means of command line interface.

For new versions, check https://github.com/Darkkey/javaNetSim javaNetSim (Java Network Simulator) - it's a fork of a project jFirewallSim. The main goal of javaNetSim is creating a software to simulate various TCP/IP networks based on Ethernet, WiFi, PPP, etc...

Implement a powerful iSCSI target in python, easily use under most popular systems. It also includes the following features: multi-target, multi-connect/session support chap authentication support header & data digest support erl =2, VTL, etc...

A virtual machine inspired by the concept of IBM's z/VM. The goal is to create a secure, fast and reliable server platform with focus on security with the ability to nest more VMs.

The Cell framework is a scalable server framework written in C#. It's original purpose is for MMOG emulation but can be easily adapted to other areas. The project includes a proof of concept rewrite of the DAoC emulator DOL.

MEM Net - Mote EMulator Network. This project will focus on: 1) MEM - Wireless Sensor Node (mote) emulator 2) MEM Net - network of emulated motes So far, the only released package is “visual-sim-slides”. More comming next !

The Network Simulation Environment (NOSE) has the capability to virtually create complex networks including different types of operation systems very cost-efficient on a single computer.

Raddle is a network emulation framework. It is particularly useful when testing network management systems or teaching people to use them. Raddle supports ping, SNMP, traceroute, and other protocols.

SQS is a project assigned to remote management of computer systems. It provides a means by which a user may control the task queue on a remote computer. The system is flexible and easy to use, configure, and install. It includes secure data transfers.

A server emulator for World of Warcraft, providing the ability for individuals to create their own realms, customised through an easy-to-use C# scripting system, allowing one to create AI, items, quests, and any other in-game functions with ease.

MQNIC ( Message Queue NIC ) Virtual Link Layer The Message Queue NIC project provides a virtual link layer for qemu/kvm based virtual machines. The virtual link layer provides transport using the Apache ActiveMQ message server or other message bus and eliminates the need for external IP infrastructure to support VM deployments. Based on the ivshmem technology originally developed by Cam Macdonell the mqnic drivers use zero copy vm<->host data transfers and the apache message server to provide low latency, high bandwidth IP support for virtual data centers while simplifying the provisioning of hosted IP. Because the Message Queue NIC appears as a standard IP device on the target machine the integration of MQNIC and traditional IP routing is completely managed by the standard IP routing tools and infrastructure. Transport security is handled by the MQ server which supports multiple levels of encryption and authentication.

Simulation model of IEEE 802.16e for ns-2