NetSim is a software, an end-to-end packet level, full-stack, emulator, and simulator. It provides the network engineers a technology development atmosphere for protocol monitoring, network research and development, and military communications.
NetSim Pro version is suitable for commercial enterprise customers and the NetSim standard, and NetSim Academic targets at education customers. Users can check network libraries that show different protocols and technologies. They can also check the emulator to understand how it can be connected to real devices running the live applications.
The users can develop their algorithms or protocol and extend and modify the existing algorithms. Using Simulation API’s, they can create custom protocols. The users also have the option to debug their code and see their variables in sync with simulation.
The external interface allows passing the prompt network data to another tool such as SUMO and MATLAB etc. The software can run its computer engine and sends back information to NetSim, which utilizes this output to transport its network simulation routines.
Graphical Network Simulator3 is open-source software and a network emulator that allows the combination of virtual and real machine devices of almost any description used to simulate composite networks. GNS3 can run on a server VMware ESXi or in the cloud. Users can host topologies on cloud vendors such as Google and Packet net etc.
It is used for education and testing networks before they are placed into production as it offers limitless choices and variations for lab topologies. The users need several components to run recent versions of this software; they need the GNS3 Graphical User interface and virtual machine when using Windows or Mac. They need Cisco IOS images for their labs.
GNS3 has many dynamic communities that help each other with guidelines and tricks for lab issues. The community members also add labs that users can access to studying. With this, professionals can build better networks, make connections, and share ideas.
#2 Cisco Packet Tracer
Cisco Packet Tracer is a software and visual simulation tool that allows users to create network topologies and replicate modern computer networks. By practicing a command-line interface, it will enable the users to configure Cisco routers and switches.
It can work on operating systems like Linux, android 4.2, MS Windows, and iOS 8, etc. It provides visualization, simulation, authoring, evaluation, and association competencies to facilitate teaching and learning of different complicated technology concepts.
The simulation model can provide tables, diagrams, and other visual representations of dynamic data transfer and the development of packet content. By using real-time visuals, users can replace the whiteboards and fixed slides and can decrease presentation time.
One of the prominent features is that it has two workspaces. The logical workspace allows the users to build logical network topologies by connecting network devices, and the physical workspace provides a graphical and physical aspect of the logical network.
#3 Free SNMP Agent Simulator
Free SNMP Agent Simulator creates a network of up to 100000 SNMP manageable devices on one server. The users can simulate any SNMP centered device with any of the public or private MIBs to run an enormous range of devices configurations with their SNMP management application. It lets users create thousands of traps to simulate disaster states.
SNMP feature includes multiple agents in one box, customized SNMP agent simulation, SNMP agent instance configuration, and extensible environment. It also offers real-time modifiable simulations, configurable SNMP Trap Generation, and recording environment.
SNMP gives a response to MIMIC simulated devices. Each device has its IP address, and the tools can be organized at run-time both on a single and shared basis. The MIMIC discovery wizard can record the production network of users with thousands of real-life devices to simulate them and increase many times. It can accumulate any number of SNMP MIBs at the same time in any order. The Windows, Solaris, Linux, and Amazon cloud are the supported platforms.
Dynamips is a computer program that is written in C language to emulate Cisco routers. It allows users to be familiar with Cisco devices, test, and experiment features of Cisco IOS and to check rapidly the configurations deployed on real routers.
To compile Dynamips, you need a working GCC or Clang compiler and CMake build system. You can accumulate two different varieties of Dynamips with this code, and to set the flags, you have to edit the Makefile.
There are two flags that are called stable or unstable. You should prefer the use of a stable flag, although it contains the same code as unstable. But it minuses some mips64 bit optimization and the code that seems to activate instability on several platforms.
The unstable code contains most of the development code and is suitable, especially for 64 bit Mac. It is unstable on other platforms. You can consult your distribution package list to find the similar packages available for most distributions.
#5 Cisco Systems. Inc
Cisco Systems. Inc designs manufacture and sell premium products related to a variety of technologies, crossways security, collaboration, applications, cloud, and IP-based networking. Its technology and products include infrastructure platforms, applications, and security, etc. The cloud-based services based on UCS (Unified Computing System) that provides for hosted versions.
The category of security products includes combined threat management products and advance threat security products of the enterprise. It also offers software that exploits the core network and data center on delivering the functions. And infrastructure category contains its core networking technologies of routing, switching, wireless, and data-centered products.
It also offers to sell networking hardware, telecommunications equipment, and other high-tech products and services. Cisco Systems. Inc compromises some technical support and advanced functions for transporting voice, video, and data across campuses and worldwide. It is providing VoIP services to enterprises, home users, and cable service operators. With skype and yahoo partnership, it integrates consumer VoIP services with cordless phones and wireless.
#6 Virtual PC Simulator
Virtual PC Simulator is an open-source software running on Linux and Windows, where only limited network commands can be used. It is an ideal tool to use in simulated networks such as GNS3 as it has developed from a simple to a robust testing ACLs tool. Because of the detailed output of ping replies and commands such as to see packet dumps, etc., made it a toolkit for the networking engineers.
Virtual PC Simulator simulates up to 9 PCs, and it is more useful than traditional PCs because it can send and receive UDP and TCP pings. From the virtual PCs, you can ping or trace out the other routers or hosts when you learn the Cisco routers in the Dynamips. It can substitute the routers or VMware boxes used as PCs in the Dynamips network.
When it starts, it attends the ports from 2000 to 2008 and delays the dynamips to connect and sends the packets to the ports from 3000 to 3008, which would be accompanied by the dynamips.
#7 GENESIS Neural Simulator
GENESIS Neural Simulator is a simulation to build accurate models of neural systems. It is used in matching supercomputers to simulate networks that comprise millions of multi-compartmental neurons. The software can model more intangible networks. Generally, it can be used both in realistic modeling of the nervous system as an instructional tool and for neurobiological study, which is a simulation-based tool.
GENESIS builds from modules that receive inputs, makes some calculations on the data, produces output as its simulator design, and the interface is based on building block approach.
It uses simulation language to construct neurons and their networks. A specific simulation is set up by writing a series of commands in the scripting language that generates the model itself and graphical interface in a particular simulation. Its version PGENESIS is the first wide-scale modeling system in computational biology to inspire developers to share model features and components.
#8 Router Configuration Generator Tool
Router Configuration Generator is an open-source application to use as an extension for GNS3 that spontaneously creates the configuration of all Cisco network equipment, which is part of the virtual topology. Through topology setup configuration files produced by GNS3 provides nodes like switches and routers without opening their matching consoles.
It provides you a standard that which configuration should be applied as it includes customized settings such as the routing protocol etc. To integrate with GNS3 and to run this tool, there are two requirements to work with this application on Windows that is GNS3 (latest version) sources files and the Latest version of rcg-tool.
You can generate a tool menu button by following two easy steps that also include gns3-GUI (main_window.py). Before constructing GNS3’s GUI, it will ask you to make some changes in the folders that need to be done, after which the GNS3 should build good and run rcg-tool.
#9 Live Raizo – Linux Distro for Networks
Live Raizo is open-source software and a live distribution based on a virtual Linux machine called Debian that comprises various network tools and services. It also includes tools to interrelate with real devices such as Wireshark and minicom, as well as SSH, HTTP, and TFTP servers.
Its core features allow you to build a complex virtual network with drag and drop options. You can link with hubs or switches and utilize server or router as a client because you have simulated machines based upon Debian. You can introduce your OS if it is compatible with Linux, Microsoft, and ASA Firewall. You can connect your simulated network with the physical system using drag and drop options.
Many network tools are already available on Debian VMS, and it allows you to install tools you need like Linux / Debian, etc. You can also modify LiveRaizo with remote scripts that emerged on a server. A minimal window manager increases the memory of the CPU for the virtualization.
Agent.GUI is a structure to address the use of Multi-agent based simulations (MABS) and Multi-agent systems (MAS) for end-users of diverse domains. MAS is a computerized system of multiple interrelating agents. It can resolve severe problems that are impossible for an individual agent to solve.
It provides a Graphical User Interface that can be stretched by the developers to address the requirements of economists, engineers, and computer experts. It is developed in JAVA that enables the developers to constitute more dominant software tools than building them from the base. The numerous tools combined in its solution provide powerful agent technology to its framework.
Agent.GUI offers a console window to developers which permits to exhibit the system output, even if the output comes from the different machine located at some remote area. The core program feature includes the developer can add external libraries to a project. To describe, start arguments for agents, it provides access to the developers to integrate protégé designed ontologies into the plans.