This e-book showcases papers from the 2006 Trans-European Research and Education Networking Association conference. Those selected for publication give background information about the foundations of the supporting infrastructure for interconnecting campus information systems. They include papers on the relationship between the underlying network provision layer and the higher level services offered through grids and peer-to-peer networks, issues involved in an e-Learning infrastructure, a practical example of network infrastructure analysis, and the challenges involved with integration of Shibboleth and Globus Toolkit.