Motivation

• Second generation of peer-to-peer networks are emerging
  • Beyond file sharing: general purpose platforms JXTA[1,2] and Pastry[3]
  • Enhanced capabilities: routing, caching (JXTA)
    
    
• Research interest in the peer-to-peer domain increased lately[3,8]
  
  
• New peer-to-peer applications are emerging
  • Content Delivery, e.g. Kontiki [4]
  • Collaboration, e.g. Groove [5]
  • Knowledge management, e.g. Pepper [6]
  • Games, e.g. JXTAChess [7]
    
    
• Increased demand for peer group communication