![]() ![]() It allows configuration and deployment of virtual networks featuring SDN, NFV, and traditional routing protocols, such as BGP and OSPF. It can run network emulation scenarios on a variety of operating systems such as Windows, Mac, and Linux, and in other environments such as data centers or the public cloud. It is a network emulator that can run either on a single host leveraging Docker or on a cluster using Kubernetes. The IMUNES developer made an update a few months ago to support the Apple M1 processor on Ubuntu 20.04 LTS. IMUNES has seen less development activity than CORE in the past few years. IMUNES and CORE share the same code heritage and their user interfaces are similar, but they have diverged from each other since 2012. GNS3 version 2.2.37 was released in January 2023. It is often used by professionals studying for certification exams. GNS3 is a very popular network emulation tool that is primarily used to emulate networks of commercial routers, but it also supports open-source routers. I am keeping EVE-NG on this list because the Community Edition is still free to use. ![]() It was originally an open-source project called UNetLab, but the developers turned it into a commercial project and renamed it. While I was refreshing this list, I realized EVE-NG Community Edition is not open-source software. I found a new project that creates a Python API for EVE-NG. EVE-NG Community Edition v5.0.1-13 was released in August 2022. The EVE-NG team seems to focus on the commercial EVE-NG product but still supports the open-source EVE-NG Community version. It is a network emulator that supports virtualized commercial router images, such as Cisco and NOKIA, and open-source routers. EVE-NGĮVE-NG Community Edition continues to receive updates. The CORE community is very active on the CORE Discord server. The most recent CORE release, 9.0.1, was released in November 2022. CORE consists of a GUI for drawing topologies of lightweight virtual machines, and Python modules for scripting network emulation 2. The Common Open Research Emulator (CORE) is still active. The most recent release was 0.36.1, released in January, 2023. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images available from the major networking vendors. Containerlab is an open-source network emulator that quickly builds network test environments in a devops-style workflow. ContainerlabĬontainerlab is still very active. Version 3.5.3 was released in April 2022. The project maintainers say it is open source but you must provide you name and e-mail address to download the application source code. It enables development of and experimentation with a variety of data-link layer, network layer, and transport layer networking protocols in networks consisting of any combination of wide-area-networking (WAN), local-area-networking (LAN), or wireless-local-area-networking (WLAN) links 1. The cnet network simulator is actively maintained. CloudSim release 6 was delivered in August, 2022. It is part of an ecosystem of projects and extensions, such as iFogSim. Cloudsim is a network simulator that enables modeling, simulation, and experimentation of emerging Cloud computing infrastructures and application services. Cloonix adopted a new release numbering scheme since I reviewed it in 2017. The Cloonix web site now has a new address at: and theCloonix project now hosts code on Github. Cloonix has both a command-line-interface and a graphical user interface. Cloonix stitches together Linux networking tools to make it easy to emulate complex networks by linking virtual machines and containers. CloonixĬloonix version 28 was released in January 2023. ![]() See below for a brief update about each tool.īelow is a list of the tools previously featured in my blog that are, in my opinion, still actively supported. I also found seven new projects that you can try. Of all the network emulators and network simulators I mentioned in my blog over the years, I found that eighteen of them are still active projects. I also reviewed the development and support status of all the network emulators and network simulators previously featured in my blog. I surveyed the current state of the art in open-source network emulation and simulation. ![]()
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