We are developing a router simulator based on Knoppix, Xen and Quagga. It is possible to simulate a network with up to 10 routers on a computer with 256MB RAM. This is very useful for students that want to experiment with routing but it is also useful for anyone who wants to test different aspects of routing.
The final name is not decided yet, Qroutix is used as a codename.
We are now nearing completion of development, if you are interesed in routing (or virtualization) please download it and give us feedback.
http://www.isk.kth.se/proj/einar

/Anders Siverby