GNS3 is a graphical network simulator focused mostly on supporting Cisco and Juniper software. The community license is not clearly stated and I cannot find the source code, so I am wondering if this project is no longer an open-source project? It is available as a virtual machine image and may also be installed on a dedicated server running Ubuntu Linux.ĮVE-NG is available in two editions: a professional version and a community edition. It uses Dynamips and IOS-on-Linux to support Cisco router and switch images, and KVM/QEMU to support all other devices. Please click here to see my posts about the CORE Network Emulator.ĮVE-NG is a network emulator that supports virtualized commercial router images (such as Cisco and NOKIA) and open-source routers. CORE is a fork of the IMUNES network simulator, and it adds some new functionality compared to IMUNES. CORE supports the simulation of fixed and mobile networks.ĬORE will run on Linux and on FreeBSD. This allows CORE to start up a large number of virtual machines quickly. The Common Open Research Emulator (CORE) provides a GUI interface and uses the Network Namespaces functionality in Linux Containers (LXC) as a virtualization technology. Please click here to see my posts about Containerlab. Containerlab also supports VM-based network devices so users may run commercial router disk images in network emulation scenarios. More interestingly, Containerlab supports any open-source network operating system that is published as a container image, such as the Free Range Routing (FRR) router. It starts the containers, builds virtual wiring between them to create lab topologies, and manages each lab’s lifecycle.Ĭontainerlab supports containerized router images available from the major networking vendors. It provides a command-line-interface for orchestrating and managing container-based networking labs. The project maintainers say it is open source but you must provide you name and e-mail address to download the application source code.Ĭontainerlab is an open-source network emulator that quickly builds network test environments in a devops-style workflow. The cnet network simulator 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. It is based on Omnet++.ĬupCarbon simulates wireless networks in cities and integrates data from OpenStreetMap. It can be used to evaluate pedestrian communication in urban and rural environments. The Contiki-NG forum is very active, with most questions receiving a reply.ĬrowNet is an open-source simulation environment which models pedestrians using wireless communication. Cooja enables fine-grained simulation/emulation of IoT networks that use the Contiki-NG IOT operating system. The Cooja IoT network emulator is part of the new Contiki-ng project. srsRAN 22.10 was released in November 2022. The project is made up of many different sub-projects. This project looks interesting to me because it seems to have open-source versions of key components in wireless RAN and Core networks. I wonder if one can emulate the radios and build a completely virtual lab, maybe by combining it with ns-O-RAN or GNUradio. The software appears to be based on standard PC hardware and radios. Please click here to see my posts about Cloonix.Ĭolosseum provides open-source wireless software for wireless network emulation. Cloonix has an active development team, who update the tool every two or three months and who are very responsive to user input. Cloonix provides a wide variety of pre-built filesystems that can be used as virtual machines and provides simple instructions for creating other virtual machine root filesystems. Cloonix uses QEMU/KVM to create virtual machines. The Cloonix network simulator provides a relatively easy-to-use graphical user interface. Please post a comment on this page to let me know about any other open-source network simulation tools I did not include in this list. This is a list of open-source network simulators and network emulators that run on Linux or BSD. Older news is archived on the Network Simulator News page. It is compatible with the Go BGP CLI Tool. RustyBGP is an open-source implementation of BGP implemented using the Rust programming language.
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