The experimental P2PNS implementation consists of two parts: A modified OpenSER SIP proxy and the overlay framework OverSim. The SIP proxy connects to the OverSim P2PNS service via an XML-RPC interface.

The implementation is still in an early stage and several security mechanisms described in the P2PNS paper are not implemented yet. This page shows the current implementation status:

Implemented Features;

• Various KBR protocols: Chord, Koorde, Pastry, Bamboo, Kademlia, Broose.
• Different routing modes: semi-recursive, full-recursive, source-routing-recursive, iterative, exhaustive-iterative
• Several security enhancements for iterative routing: disjoint paths, parallel RPCs and a sibling table
• DHT layer with replication and majority decision
• Optional two-stage name resolution (ID/Loc-split architecture)
• XML-RPC interface to applications

Work in progress:

• Zeroconf Boostrapping
• Merging of overlay partitions
• Caching layer
• DHT security enhancements

Not implemented yet:

• NodeID certificates
• Message signatures
• Caching layer