= The P2P Simulation Framework =

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

!OverSim is developed at the [http://www.tm.uka.de/itm/index.php?lang=en Institute of Telematics (research group Prof. Zitterbart)], Universität Karlsruhe (TH) 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 =

March 4, 2009
  * The ''GI/ITG Fachgruppe KuVS'' has awarded the !OverSim project with the "KuVS Communication Software" prize. The prize is awarded for innovative software for use in communication and distributed systems. 

January 16, 2009
  * !OverSim was successfully deployed in the [http://www.planet-lab.org/ PlanetLab] research network on about 450 nodes to provide the [http://www.p2pns.org/ peer-to-peer name service P2PNS]. The P2PNS name service is used to built a P2P SIP VoIP network without servers. There is a [http://p2pname.org/ P2P SIP demo website] which shows the current overlay status and allows to make P2PSIP test calls.

September 19, 2008
  * Released [OverSimDownload OverSim-20080919].
    * New overlay gaming protocol PubSubMMOG
    * New overlay protocol Bamboo
    * Additional routing types:
      * Exhaustive-iterative, full-recursive, source-routing-recursive
    * Enhanced !IterativeLookup module
      * Supports parallel RPCs and lookup over disjoint paths
    * Enhanced !SimpleUnderlay model:
      * Added packet loss support to SimpleUDP
      * Jitter in SimpleUDP
    * !NoChurn churn generator
    * Several API and INI FILE CHANGES - check your files!
    * Many other bugfixes and enhancements (take a look at [/chrome/site/Documentation/ChangeLog doc/ChangeLog])

[OldNews [Old News...]]

{{{
#!html

<table cellspacing='0' cellpadding='24' 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.