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Welcome to Virtual Network User-Mode-Linux (VNUML) web server

VNUML (Virtual Network User Mode Linux) is an open-source general purpose virtualization tool designed to quickly define and test complex network simulation scenarios based on the great User Mode Linux (UML) virtualization software. It has been initially developed in the context of Euro6IX research project to simulate IPv6 IX scenarios based on Linux and zebra/quagga routing daemons (see our article on IEEE Comms. Magazine). However, it is a useful tool that can be used to simulate general Linux based network scenarios.

VNUML is aimed to help in testing network applications and services over complex testbeds made of several nodes (even tenths) and networks inside one Linux machine, without involving the investment and management complexity needed to create them using real equipment.

VNUML tool is made of two main componets: the VNUML language used for describing simulations in XML; and the interpreter of the language (vnuml command), that builds and manages the simulation, hidding all UML complex details to the user.

VNUML has been developed by the Telematics Engineering Department (DIT) of the Technical University of Madrid (UPM) in Spain.

This software is released under GNU Public Licence. It has been developed with the partial support from the European Commission under the Euro6IX IST research project.

VNUML development begun at the end of 2002 and since July 2004 the project is partially hosted at Visit the VNUML site at SourceForge.



December 28th, 2007 -- New UML kernel for VNUML has been released: linux-um_2.6.18.1-bb2-xt-4m. It is basically the same than linux- with the patch Jeff Dyke sent to the uml list that solves the pts problem.

December 28th, 2007 -- New VNUML minimal root filesystem (n3vlr-0.11-vnuml-v0.1.img) based on N3 Virtual Linux Router has been released. It is a very small rootfs (only 18 M) with low memory requirements (24 M or even less) especially suited to emulate network routers.

November 29th, 2007 -- New VNUML testing release (1.8.2beta4)

October 4th, 2007 -- All examples updated to 1.8 version

September 22th, 2007 -- New Howto added describing VNUML installation over Fedora 7

September 12th, 2007 -- New VNUML testing release (1.8.2beta3)

July 21st, 2007 -- New VNUML testing release (1.8.2beta2) and root_fs (0.5.1) solving some bugs.

July 18th, 2007 -- New VNUML testing release: 1.8.2beta1.

July 11th, 2007 -- New root_fs_tutorial 0.5.0 has been released. Install it using the root-fs-installer script!

July 5th, 2007 -- New UML kernel for VNUML has been released: linux- It can also be installed through APT (using the same repository than vnuml package): 'apt-get install linux-um'.

All News