Psimulator2 is a basic graphical network simulator created and used by the Czech Technical University in Prague, Faculty of Information Technology to teach basic networking topics. It will run on any system that supports Java, including Windows, Mac OS, and Linux. Each node created in the Psimulator2 network is a Java program that implements the […]
In a previous post, I showed how to install the Marionnet open-source network simulator on a Debian Linux system. Recently, I installed Marionnet on a Knoppix system so I can run it on any computer from a USB thumb drive. Knoppix is based on Debian but, by default, it uses the LXDE desktop environment instead
GNS3 can be used to simulate a network composed exclusively of open-source routers, switches, servers, and hosts. In this post, we will investigate how well GNS3 works when we use it strictly as an open-source network simulator, without using Cisco or Juniper routers in the simulation.
To run virtual nodes in a simulated network, the GNS3 open-source network simulator supports two virtualization technologies: Qemu and VirtualBox. The open-source routers we will use in a GNS3 simulated network must run on either a Qemu or a VirtualBox hypervisor. Depending on one’s requirements, one might choose either VirtualBox or Qemu. Let me tell
GNS3 is a very popular network simulation tool that runs on the major operating systems: Windows, Mac OS, and Linux. GNS3 is primarily used to emulate networks of Cisco routers and is used by professionals studying for Cisco certification exams. GNS3 supports Cisco router software images running on the Dynamips hardware emulation program. GNS3 also
Virtual Networks over Linux (VNX) is an open-source network simulation tool that builds and modifies virtual network test beds automatically from a user-created network description file. In its current version, VNX supports several different virtualization methods: KVM, user-mode linux, and DynaMIPS. VNX was developed by the Telecommunication and Internet Networks and Services (RSTI) research group
In this post, I describe the procedure I followed to install the VNX Network Simulator on a computer running the Ubuntu Linux 13.10 operating system. The VNX system consists of the VNX program that parses the scenario description XML file and builds and manages the virtual network elements; XML files that contain a description of
The Mininet open-source network simulator is designed to support research and education in the field of Software Defined Networking systems. Mininet creates a simulated network that runs real software on the components of the network so it can be used to interactively test networking software. Software Defined Networking (SDN) is a relatively new technology, but
The easiest way to get started using the Mininet network simulator is to use the Mininet virtual machine. It is based on the Ubuntu Linux Server operating system and comes with all the software and tools required to support Mininet already installed. The Mininet web site provides detailed setup notes, describing how to download and use the