= The Overlay Framework =

!OverSim is an open-source overlay and peer-to-peer network simulation framework for the [http://www.omnetpp.org/ OMNeT++] simulation environment. The  simulator contains several models for structured (e.g. Chord, Kademlia, Pastry) and unstructured (e.g. GIA) P2P systems and overlay protocols.

!OverSim was developed at the [http://www.tm.uka.de/itm/index.php?lang=en Institute of Telematics (research group Prof. Zitterbart)], Karlsruhe Institute of Technology (KIT) within the scope of the [http://www.scalenet.de ScaleNet] project funded by the [http://www.bmbf.de/en/index.php German Federal Ministry of Education and Research]. The simulator is actively developed and open to contributions. If you have any questions regarding !OverSim, please send an email to the MailingList.

'''If you write a paper using !OverSim, please use the following citation: [http://www.tm.uka.de/itm/publications.php?bib=250&lang=en bibtex reference]'''.

= News =

November 3, 2010
  * Released [OverSimDownload OverSim-20101103].
    * Support for the [https://i72projekte.tm.uka.de/trac/ReaSE ReaSE Internet topology generator] (ReaSEUnderlay)
    * TCP support for !SimpleUnderlay and !InetUnderlay (still experimental)
    * IPv6 support for !SimpleUnderlay and !InetUnderlay (still experimental)
    * N-Tree: New overlay protocol for virtual worlds
    * Recursive routing for the Kademlia protocol
    * !GlobalNodeList now internally uses a better data structure (implemented in
      the !PeerStorage class). This allows for random node access in O(1).
    * Many other bugfixes and enhancements (take a look at [/chrome/site/doc/ChangeLog doc/ChangeLog])

[OldNews [Old News...]]

{{{
#!html

<table cellspacing='0' cellpadding='12' border='0' width='80%'>
<tr>
<td>	<a href="../chrome/site/pics/ChordIPv4.png" target="blank"><img src='../chrome/site/pics/ChordIPv4_small.png' alt='Chord IPv4' ></a></td>
<td>	<a href="../chrome/site/pics/Chord-Ring.png" target="blank"><img src='../chrome/site/pics/Chord-Ring_small.png' alt='Chord ring'></a></td>
<td>	<a href="../chrome/site/pics/GIA.png" target="blank"><img src='../chrome/site/pics/GIA_small.png' alt='GIA'></a></td>
</tr>
</table>

}}}

== Good Starting Points ==

 * OverSimGuide -- Starting point for the '''!OverSim documentation'''.
 * OverSimFeatures -- Already available and planned !OverSim features.
 * OverSimDownload -- Download !OverSim on this page.
 * MailingList -- Join the mailinglist for user and developer discussions.
 * OverSimPublications -- Publications related to !OverSim
 * OverSimTeam -- The core developers of !OverSim.
 * [http://www.p2pns.org P2PNS/P2PSIP] -- A distributed name service for P2PSIP built with !OverSim

For a complete list of available wiki pages, see TitleIndex.